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GREEN APPROACH TO TREAT INSTITUTIONAL WASTEWATER BY
USING CASSAVA PEELS STARCH (CPS) AS COAGULANT AID
VICKY KUMAR
A project report submitted in partial
fulfillment of the requirement for the award of the
Degree of Master of Civil and Environmental Engineering
Faculty of Civil and Environmental Engineering
University Tun Hussein Onn Malaysia
SEPTEMBER 2018
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2DEDICATION
I would like to dedicate this thesis to
“ALMIGHTY ”
(Who gave me strength, knowledge, patience, and wisdom)
to my beloved “Parents”
(Their love, devotion, cares, sacrifices, and prayers helped me to achieve this dream)
to my caring “Brother and Sisters and Sister in law”
(Their continuous support, encouragement, and efforts)
to my Niece “HEER” and Nephew “YASH”
(Their cutest acts relax me every time)
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3ACKNOWLEDGEMENT
First of all, I am much more thankful of Allah SWT, for HIS special blessing over me.
HE always blessed me very well, although if I spend my life only for thanking of HIS
blessing still it is very less effort to be thankful for HIS blessing. All my achievements
are become in my way only because of HIM.
I would like thanks UTHM for giving me such a prestige opportunity to take
my master degree in this institute, which is a very important step in my professional
career.
My special and sincere thanks to my supervisor “Associate Professor Dr.
Norzila Binti Othman”, for her trust in me and I am also thankful for her social,
technical encouragement, guidance and recommendations. Without her continuous
motivation, this study would not have been the same as presented here. I would like to
thanks my Co-Supervisor Associate Professor Ir. Dr. Mohd. Fadhil Bin Md Din
(UTM) for his moral support.
I am also very much thankful to colleague mate “Syazwani Mohd Asharuddin”
to guide and assist me throughout my master journey especially for help and support
in all aspects.
Finally, I express my very profound gratitude to my parents for their sacrifices
and prayers, I take this opportunity to extend my heartfelt thanks to my brother Assoc.
Prof. Dr. Bhagwandas and to my sister “Engr. Sonia Lohana” for their support and
continuous encouragement throughout my years of study. This accomplishment would
not have been possible without them.
I’m thankful to all lecturers, academic staff and non-academic staff of
Universiti Tunn Hussein Onn Malaysia for all continuous support during my journey.
Last but not the least; I am thankful to my friends, for their positive attitude,
support, and encouragement.
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4ABSTRACT
The quality of water is superior for the stability of the ecosystem. Institutional
wastewater contains pollutants and exceed the level of contaminants beyond standards.
Applications of natural coagulants are widely in practice due to abundant source, low
price, environment-friendly and rapid biodegradable as compared to inorganic based
coagulants. This study traces the potential removal of pollutants from institutional
wastewater by coagulation-flocculation processes. Alum as primary coagulant and
CPS as coagulant aid was used for removal of pollutants. A series of batch experiments
were performed to study the removal mechanism to achieve optimum pH, dosage, and
settling time, to premeditated institutional wastewater removal efficiency (%) of COD,
TSS & Turbidity. Institutional wastewater physicochemical characteristics were
analyzed by pH, temperature, turbidity, COD, TSS, BOD, Characteristics of CPS were
characterized by SEM-EDX, FTIR, XRF, XRD, particle size and zeta potential.
Removal efficiency of dual coagulant (alum+CPS) were achieved at optimum dosage
of 40:60 mg/L at pH 8 with 60 mins settling time with removal efficiency of COD
(41%), TSS (86%) and Turbidity (91%). Selected parameters study showed a
significant reduction (P<0.05) for wastewater treatment. After coagulation and
flocculation process, produced sludge was further characterized with SEM-EDX,
FTIR and Zeta potential. However, zeta potential results revealed that stability of
alum+CPS at pH 8 were proven in removal efficiency and mechanism study. Due to
high removal achieved in the reduction of pollutants, therefore, the CPS as coagulant
aid has potential for the treatment of institutional wastewater.
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5ABSTRAK
Air bersih adalah penting dalam menstabilkan persekitaran ekosistem. Lazimnya air
sisa perbandaran mengandungi bahan cemar dengan kepekatannya melebihi paras
piawaian pencemaran. Aplikasi koagulan semulajadi dipraktikkan dengan meluas
disebabkan sumber yang banyak, harga rendah, mesra alam dan terbiodegradasi
dengan cepat berbanding dengan koagulan tidak organik. Kajian ini dijalankan bagi
mengenalpasti potensi penyingkiran bahan pencemaran dari air sisa perbandaran
melalui proses pembekuan dan pemberbukuan. Alum sebagai bahan pengental utama
dan CPS sebagai bahan pengental bio bantuan telah digunakan untuk menyingkirkan
bahan pencemar. Satu siri kajian telah dijalankan untuk mempelajari mekanisma
penyingkiran untuk mencapai pH optimum, dos dan masa pengenapan, bagi
merancang kecekapan penyingkiran air sisa, dalam parameter COD, TSS dan
kekeruhan. Pencirian kimia fizikal air sisa perbandaran dianalisis berdasarkan
pH, suhu, kekeruhan, COD, TSS, BOD5, Pencirian bahan pengental CPS bio dicirikan
dengan SEM-EDX, FTIR, XRF, XRD, saiz zarah dan potensi zeta. Kecekapan
penyingkiran bahan pengental ganda (alum+CPS) dicapai pada nisbah optimum 40:60
mg/L pada pH8 selama 60 minit masa pengenapan dengan kecekapan penyingkiran
COD (41%), TSS (86%) dan Kekeruhan (91%). Parameter kajian yang dipilih
menunjukkan pengurangan yang ketara (p<0.05) untuk rawatan air sisa. Selepas proses
pembekuan dan pemberbukuan, enapcemar yang terhasil dicirikan lagi dengan SEM-
EDX, FTIR dan potensi zeta. Walau bagaimanapun, keputusan potensi zeta
menunjukkan bahawa zon yang stabil untuk alum+CPS adalah pada pH 8 dimana
keadaan pH ini memainkan peranan penting dalam kajian berkaitan kecekapan
penyingkiran dan mekanisme penyingkiran pencemar. Peningkatan peratus
penyingkiran dengan penggunaan bahan pengental bio menunjukkan kebolehan CPS
untuk digunakan dalam perawatan air sisa perbandaran.
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6CONTENTS
TITLE I
DECLARATION II
DEDICATION III
ACKNOWLEDGEMENT IVV
ABSTRACT V
ABSTRAK VI
CONTENTS VII
LIST OF TABLES XIV
LIST OF FIGURES XVI
LIST OF SYMBOLS AND ABBREVIATIONS XIX
LIST OF APPENDICES XX
CHAPTER 1 INTRODUCTION 1
1.1 Introduction 1
1.2 Problem statement 3
1.3 Research objectives 5
1.4 Research scope 5
1.5 Significance of study 6
1.6 Layout of thesis 7
CHAPTER 2 LITERATURE REVIEW 9
2.1 Introduction 9
2.2 Institutional wastewater in Malaysia 10
2.3 Institutional wastewater composition 11
2.4 Impact of wastewater on the environment 13
2.5 Wastewater standard guideline 13
2.6 Physical characteristics of wastewater 15
2.6.1 Total suspended solids (TSS) 15
2.6.2 Turbidity 16
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2.6.3 Temperature 17
2.7 Chemical characteristics of wastewater 17
2.7.1 pH 18
2.7.2 Dissolved oxygen (DO) 18
2.7.3 Biological oxygen demand (BOD) 19
2.7.4 Chemical oxygen demand (COD) 20
2.8 Coagulation and flocculation 21
2.9 Coagulants 27
2.9.1 Primary coagulants 28
2.9.2 Chemical coagulant 28
2.9.3 Inorganic coagulants 29
2.9.4 Organic coagulants 30
2.10 Coagulant aids 31
2.10.1 Natural coagulant 32
2.10.2 Chitosan 32
2.10.3 Algae 33
2.10.4 Actinobacteria 33
2.11 Plant-based coagulants 34
2.11.1 Tannins 34
2.11.2 Cactus 35
2.11.3 Plant seed extracts 36
2.11.4 Moringa oleifera 36
2.12 Cassava starch 37
2.12.1 Production and utilization of cassava in
Malaysia 38
2.12.2 Nutrient composition of cassava 39
2.12.3 General morphology of cassava 40
2.12.4 The composition of the CPS layers 40
2.12.5 Starch 41
2.12.6 Structure of amylose and amylopectin 42
2.13 Factors affecting coagulation 43
2.13.1 Coagulation dose 43
2.13.2 pH 44
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2.13.3 Settling time 46
2.13.4 Mixing 46
2.13.5 Colloidal concentration 48
2.14 Mechanism of coagulation 48
2.14.1 Charge neutralization 49
2.14.2 Bridging mechanism 50
2.14.3 Sweep-floc/ colloid entrapment mechanism 52
2.14.4 Charge Density 52
2.14.5 Flocculation mechanisms 53
2.14.6 Adsorption 53
2.14.6.1 Physisorption 54
2.14.6.2 Chemisorption 54
2.14.7 Double layer compression 55
2.14.8 Type of Polymer 56
2.14.8.1 Non-ionic polyelectrolytes 56
2.14.8.2 Anionic polyelectrolytes 56
2.14.8.3 Cationic polyelectrolytes 56
2.15 Waste to wealth: Conversion of an agriculture
waste to produce bio coagulant 57
2.16 A literature review of the cassava usage in water
treatment studies 58
2.17 Use of Natural coagulants for wastewater
treatment and their respective applications for
removal of pollutants from wastewater 60
2.18 Concluding remarks 63
CHAPTER 3 METHODOLOGY 65
3.1 Introduction 65
3.2 Overview of study 65
3.3 Study area 67
3.4 Institutional wastewater sampling and
preservation 68
3.4.1 In-situ analysis 68
3.4.2 Laboratory analysis 68
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3.5 Institutional wastewater parameters
characterization 69
3.6 Bio coagulant formation from agriculture waste 69
3.7 Preparation of CPS as a coagulant aid 70
3.7.1 Collection process of cassava peels 70
3.7.2 Cleaning of cassava peels 70
3.7.3 Filtration process 71
3.8 Characterization of CPS 72
3.9 Instrumental analysis of the alum, CPS and
alum+CPS 73
3.9.1 SEM-EDX analysis 73
3.9.2 Energy dispersive x-ray (EDX) analysis 74
3.9.3 X-Ray Fluorescence (XRF) analysis 74
3.9.4 FTIR analysis 74
3.9.5 XRD analysis 75
3.9.6 Particle size analyzer 75
3.9.7 Moisture content 75
3.9.8 Zeta potential and IEP analysis 76
3.9.8.1 Zeta potential measurement 76
3.10 Preparation of alum stock solution 77
3.11 Preparation of cassava peel starch (CPS) stock
solution 78
3.12 Preparation of alum+CPS stock solution 78
3.13 Coagulation and flocculation test 79
3.14 Jar Testing 82
3.15 Coagulant and alum dosage optimization by Jar
Test 82
3.16 Study on the effect on coagulation and
flocculation 83
3.17 Statistical analysis 84
CHAPTER 4 RESULTS AND DISCUSSION 85
4.1 Introduction 85
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4.2 Characterization of institutional wastewater 85
4.3 Characterization of alum and CPS (CPS) 89
4.3.1 Surface morphology and elemental mapping
of alum 89
4.3.2 Surface morphology and elemental mapping
of CPS 91
4.3.3 Chemical functional group analysis for alum
using FTIR 94
4.3.4 Chemical functional group analysis for CPS
using FTIR 96
4.3.5 Crystalline structure analysis of alum using
XRD 97
4.3.6 Crystalline structure analysis of CPS using
XRD 99
4.3.7 Chemical composition analysis of alum using
XRF 100
4.3.8 Chemical composition analysis of CPS using
XRF 101
4.3.9 Particle size analysis of alum 102
4.3.10 The particle size of CPS 103
4.3.11 Moisture content 104
4.4 Effect of pH, dosage and settling time on
coagulation and flocculation 105
4.4.1 Effect of pH on the reduction of TSS, COD,
Turbidity by using Alum, CPS, and
alum+CPS dosage 106
4.4.1.1 Effect of pH on the reduction of
TSS, COD, Turbidity using single
alum 106
4.4.1.2 Effect of pH on the reduction of
TSS, COD, Turbidity using single
CPS 108
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4.4.1.3 Effect of pH on the reduction of
TSS, COD and Turbidity using
dual alum+CPS 109
4.4.2 Effect of dosage on the reduction of TSS,
COD and Turbidity using alum, CPS and
alum+CPS 111
4.4.2.1 Effect of single alum dosage
on the reduction of TSS, COD, & Turbidity 111
4.4.2.2 Effect of single CPS dosage on
reduction TSS, COD, Turbidity 112
4.4.2.3 Effect of dual alum+CPS dosage
on the reduction of TSS, COD and Turbidity 114
4.4.3 Effect of settling time on reduction of TSS,
COD, Turbidity by using alum, CPS, and
alum+CPS dosage 116
4.4.3.1 Effect of settling time on reduction
of TSS, COD, Turbidity using single alum 116
4.4.3.2 Effect of settling time on reduction
of TSS, COD, Turbidity using single CPS 117
4.4.3.3 Effect of settling time on reduction
of TSS, COD, Turbidity using dual
alum+CPS 119
4.5 Chemical functional group analysis after
coagulation and flocculation process using FTIR 121
4.5.1 Chemical functional group analysis of alum
flocs from optimum pH, dosage and settling
time using FTIR 121
4.5.2 Chemical functional group analysis of CPS
flocs from optimum pH, dosage and settling
time using FTIR 123
4.5.3 Chemical functional group analysis of
alum+CPS flocs from optimum pH, dosage
and settling time using FTIR 124
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4.6 Characterization of Floc using SEM-EDX at
optimum alum, cps, and alum + CPS after jar test 125
4.6.1 Surface morphology of alum flocs after jar
test using SEM 125
4.6.2 Surface Morphology of CPS flocs after jar
test using SEM 127
4.6.3 Surface morphology of alum+CPS flocs
after jar test using SEM 130
4.7 Zeta Potential after coagulation 132
4.7.1 Surface particle charge of alum at a fixed
optimum dosage at various pH 134
4.7.2 Zeta potential of CPS at a fixed optimum
dosage at various pH 135
4.7.3 Zeta potential of alum+ CPS at a fixed
optimum dosage at various pH 136
4.7.4 Zeta potential of alum, CPS and alum+CPS
dosages at fixed pH 137
4.8 Summary 139
CHAPTER 5 CONCLUSION AND RECOMMENDATIONS 141
5.1 Introduction 141
5.2 Conclusion 141
5.3 Recommendations 143
REFERENCES 145
APPENDICES 177
VITA 204
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7LIST OF TABLES
2.1 Constituents present in institutional wastewater 12
2.2 Direct and indirect sources of water pollution 13
2.3 Environment Quality (Sewerage and Industrial Effluents)
Regulations, 2009 (Environment Quality Act 1974 14
2.4 Typical Characteristic of Untreated Institutional Wastewater 15
2.5 Various natural coagulants used for wastewater treatment 24
2.6 Inorganic coagulants characteristics 27
2.7 Commonly used chemical coagulants in wastewater treatment 28
2.8 Benefits and drawbacks of inorganic coagulants usage 29
2.9 Inorganic coagulants 30
2.10 Organic coagulants 31
2.11 Average composition of the cassava (%) 40
2.12 Composition of cassava starch peels (CPS) 40
2.13 Cassava starch peels extraction based on flesh, periderm, and
cortex 41
2.14 Various natural coagulants used for wastewater treatment 62
3.1 Institutional wastewater parameters characterization standard
methods 69
3.2 Alum + CPS stock preparation ratio 80
3.3 Jar test working condition 81
4.1 Institutional wastewater characterization 87
4.2 Elemental composition of alum 91
4.3 Elemental composition of CPS 94
4.4 Fourier Transform Infrared (FTIR) spectra peak frequencies and
corresponding functional groups of alum powder 95
4.5 Fourier Transform Infrared (FTIR) spectra peak frequencies and
corresponding functional groups of CPS (CPS) 96
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4.6 Elemental composition of alum 101
4.7 Chemical composition analysis of CPS 101
4.8 Moisture content determination 105
4.9 Jar test optimization conditions 106
4.10 Alum+CPS dosage distribution based on ratio 115
4.11 FTIR spectra peak frequencies and corresponding functional
groups of alum after jar test 122
4.12 FTIR wavelength difference before and after treatment alum
dosage 122
4.13 FTIR spectra peak frequencies and corresponding functional
groups of cps after jar test 123
4.14 FTIR wavelength difference before and after treatment CPS
dosage 123
4.15 FTIR spectra peak frequencies and corresponding functional
groups of alum+cps after jar test 125
4.16 Elemental composition of alum Flocs 127
4.17 Elemental composition of CPS flocs 129
4.18 Elemental composition of alum +CPS flocs 132
4.19 Zeta potential before and after coagulation 133
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8LIST OF FIGURES
2.1 Organic and inorganic particles of all sizes in suspended solids
concentration 16
2.3 Wastewater treatment with coagulation and flocculation process 23
2.6 Structure of cassava peels 38
2.7 Basic structure and chemical arrangement of amylose and
amylopectin 43
2.4 Schematic illustration of a charge neutralization flocculation
mechanism between negatively charged particles and a cationic
polymer 50
2.5 (a) Adsorption of polymer and formation of loops available for
binding (b) Polymer bridging between particles (c) Restabilization
of colloid particles 51
3. 1 Methodology flow chart 66
3.2 Institutional wastewater treatment plant (Source: Google map) 67
3.3 Discharge point of institutional wastewater 67
3.4 (a) Agriculture waste produced by factory collected in polythene
bags (b) Raw cassava peels obtained after separation process
(c) Native cassava starch as bio coagulant powder 70
3.5 Cassava peel preparation process as bio coagulant 71
3.6 Cassava peels characterization 72
3.7 Accessory use to produce pressed pellet 74
3.8 Experimental conditions of the optimization study 84
4.1 Morphology image of aluminium sulfate powder (500X) 90
4.2 (a) Element mapping of alum, (b) C; (c) H; (d) O; (e) Al;
(f) S; at 50µm (500X) 90
4.3 EDS Spectra of alum 91
4.4 Morphology image of CPS (750X) 92
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4.5 Elemental chemical maps obtained by SEM: (b) H; (c) C; (d) O;
(e) F; (f) Al; (g) Si; (h) P; (i) Fe; at 30µm (750X) 93
4.6 EDX spectrum of native CPS 94
4.7 FTIR spectra of alum powder 96
4.8 FTIR spectra of CPS 97
4.9 X-Ray diffraction (XRD) of alum 99
4.10 X-Ray diffraction (XRD) of CPS 100
4.11 Particle size of alum sample 103
4.12 Particle size of CPS sample 104
4.13 Effect of pH on the reduction of TSS, COD, Turbidity using
single ALUM 107
4.14 Effect of pH on the reduction of TSS, COD, Turbidity using
single CPS 109
4.15 Effect of pH on the reduction of TSS, COD, Turbidity using dual
alum+CPS (50:50) 110
4.16 Effect of single alum dosage on the reduction of TSS, COD,
Turbidity 112
4.17 Effect of single CPS dosage on the reduction of TSS, COD,
Turbidity 113
4.18 Effect of dual alum+CPS dosage on the reduction of TSS, COD,
Turbidity 115
4.19 Effect of settling time on reduction of TSS, COD, Turbidity by
using single alum 117
4.20 Effect of settling time on reduction of TSS, COD, Turbidity
using single CPS 119
4.21 Effect of settling time on reduction of TSS, COD, Turbidity
using dual alum+CPS 121
4.22 FTIR spectra of alum flocs after jar test optimization 122
4.23 FTIR spectra of cps after jar test optimization 124
4.24 FTIR spectra of alum+cps after jar test optimization 125
4.25 Surface morphology of alum flocs (500X) 126
4.26 EDX spectrum of alum floc 127
4.27 Surface morphology CPS flocs (500X) 128
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4.28 Elemental composition of CPS flocs 129
4.29 Surface morphology of alum+CPS flocs (500X) 130
4.30 Elemental composition of alum+CPS flocs 131
4.31 Zeta potential at fixed alum dosage at various pH 135
4.32 Zeta potential at fixed CPS dosage at various pH 136
4.33 Zeta potential at a fixed alum+CPS dosage at various pH 137
4.34 Zeta potential at fixed pH and various dosages alum 138
4.35 Zeta potential at fixed pH and various dosages of CPS 138
4.36 Zeta potential at fixed pH and various dosages of alum+CPS 139
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LIST OF SYMBOLS AND ABBREVIATIONS
Avg Average
Cl Chlorine
cm
CPS
Centimeter
CPS
EDX Energy Dispersive Spectroscopy
kg Kilogram
L/l Length
mg Milligram
MgO Magnesium Oxide
mm Millimeter
O Oxygen
SEM Scanning Electron Microscopy
T Temperature (°C)
XRD X-ray Diffraction
XRF X-ray Fluorescence
UTHM Universiti Tun Hussein Onn Malaysia
COD Chemical Oxygen Demand
BOD5 Biological Oxygen Demand at 5 day
µm Micrometer
TDS Total Dissolved Solids
TOC Total Organic Carbon
mg/L milligram per liter
NTU Nephelometric Turbidity Units
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9LIST OF APPENDICES
APPENDIX TITLE PAGE
A Institutional wastewater characterization 177
B Effect of pH on reduction of cod, tss and turbidity using
alum, cps and alum+cps 178
C Effect of dosage on reduction of cod, tss and turbidity using
alum, cps and alum+cps 180
D Effect of settling time on reduction of cod, tss and turbidity
using alum, cps and alum+CPS 182
E Oneway alum turbidity TSS, COD by ph, Dosage, Settling
time/statistics descriptives homogeneity /missing analysis
/posthoc =tukey alpha(0.05). 184
F Oneway CPS turbidity tss cod by ph, Dosage, Settling
time/statistics descriptives homogeneity /missing analysis/
posthoc=tukey alpha(0.05). 190
G Oneway alum+CPS turbidity tss cod by ph, Dosage,
Settling time/statistics descriptives homogeneity /missing
analysis /posthoc =tukey alpha(0.05). 194
H Equipemtns and analyzers list 200
(i) List of all equipment used in this study 200
(ii) List of analyzers used in this study 201
(iii) Apparatus listing used in this study 203
(iv) Flocs formation and sludge production 203
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10CHAPTER 1
INTRODUCTION
1.1 Introduction
Wastewater can be an important water resource, but its use must be carefully planned,
treated and regulated to prevent adverse health effects due to contamination of
environment. Water plays a substantial role in supporting and maintaining human
health and sustainable ecosystem development, population growth, urbanization,
industrialization and consumption patterns change has generated ever-increasing
demands for freshwater resources worldwide (Bagatin et al., 2014; UNESCO, 2015).
Over the past several decades, ever-growing demands and misuse of water
resources have caused severe water stress as well as the risks of water contamination
in many parts of the country (Theodoro et al., 2013). Thus, current misuse of water is
increasing issues related to growing population, living standards, climate change, and
urbanization, activities has departed clean water resources worldwide (Choy et al.,
2014). Nearly 1.6 million people are constrained to use contaminated water and more
than a million people die from diarrhea every year due to water-borne diseases
especially in developing countries (Sowmeyan et al., 2011). By 2030, the world is
projected to face a 40% global water deficit under the business-as-usual scenario
(Zhang et al., 2017). Asia and the Pacific area have lower renewable water resources
per capita than the global average, as the population grows, more water will be required
for socio-economic activities (UNESCAP, 2013).
Institutional wastewater is treated is to eliminate solid matter in the form of
organic before remaining water to be discharged back to the environment (Srinivas,
2008). The treatment process must be capable to perform basic wastewater handling.
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As population and trade grew to their aptitude size, increased degrees of treatment
before discharging institutional wastewater became necessary. The supply of clean
water is an essential responsibility to support consumers daily needs that aim to help
in lowering health incidence and decrease skin diseases, eye infections, as well as
worm infections if water is supplied with recommended standard (Prüss & Neira
2016). Adequate institutional wastewater treatment and sanitation are essential to
remove turbidity, impurities which can be overcome through the process of
coagulation and flocculation (Lee, Robinson & Chong, 2014).
These processes of coagulation and flocculation are elements of total
clarification system used in wastewater treatment plants (WWTP). Hence, it is
necessary to optimize the process and the coagulant used that are essential to produce
clean water that meets the stringent water quality standards. Coagulation and
flocculation have been practiced broadly in water and wastewater treatment for the
removal of particulate and dissolved materials (Duan & Gregory, 2003).
The suspended particles vary considerably in the source, composition charge, particle
size, shape, and density. Correct application of coagulation and flocculation processes
and selection of the coagulants depend upon understanding the interaction between
these factors (JarPrakash, Sockan & Jayakaran 2014). Coagulation and flocculation
occur in successive steps intended to overcome the forces stabilizing the suspended
particles, allowing particle collision and growth of flocs (Saritha & Vuppala, 2011).
Aluminium salts such as aluminium sulfate and poly aluminium chloride are
the most prominent. However, a large dosage of aluminium in treated water has raised
concern over the large amount of sludge production, required more cost in marinating
plant operations. However, presence of high amount of dosage causes health effect due
to prolonged exposure to aluminium in wastewater which can result in Alzheimer
diseases, skin diseases (Tomljenovic, 2011). One of the main causes of waterborne
diseases is the improper treatment of wastewater.
Therefore, being focused on the alternative coagulants such as plant-based
natural coagulants. Apparently, plant-based coagulants as coagulant aid are cost-
effective, highly biodegradable, non-toxic, non-corrosive and unlikely to produce
water with extreme pH (Oladoja, 2015). In order to minimize the exposure of
prolonged problems that causes and required more cost and efforts in maintaining
plants natural coagulants played a vital role for partial replacement of organic based
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coagulant such as alum. Therefore, dual coagulant played an important role to
overcome these problems. Thus, these facts make them a promising alternative
towards reducing alum dosage during wastewater treatment.
1.2 Problem statement
In order to understand wastewater treatment, it is important to know the various
components that challenge wastewater treatment processes and pollutants. The main
composition of institutional wastewater is the number of organic pollutants load that
makes wastewater beyond its limits. Institutional wastewater is the consumed water
instigating from all aspects of human activities. It typically constitutes a combination
of flows from the kitchen, bathroom, and laundry, encompassing laboratories, toilets,
baths, kitchen sinks, garbage grinders, dishwashers, washing machines, and water
softeners. Institutional wastewater, as the name implies, principally originates in
residences and is also referred to as sanitary sewage. Wastewater management
facilities produce sludge; it’s the product of pulling all of the waste out of our water
supply. Unfortunately, producing this sludge also means cleaning it up, which means
there’s a huge footprint left on the environment, maintenance cost and continues check
and balance required. Currently, Challenges on wastewater treatment are diversified
and differ depending not only on legislations for effluent control but also on regional
characteristics and socio-economic conditions. Hence, there is a difficult in identifying
a common challenge applicable to all situations. Nevertheless, there is no doubt that
implementation of a cost-effective and high-performance wastewater treatment system
is of importance.
Nowadays common practices for wastewater treatment including examination
of wastewater treatment plants reveals that almost all types of processes are being used.
These include (1) simple and low-cost processes (sedimentation, stabilization ponds
and aerated lagoons) that required enough area to install facilities, (2) high cost,
secondary treatment processes (activated sludge, trickling filters), and (3) the high cost
advanced treatment processes (nitrification, denitrification, gravity media filtration,
chemical clarification, activated carbon adsorption, reverse osmosis, etc, that required
chemicals). However, coagulation and flocculation is process and can be install
anywhere without any special needs.
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A very important step in water and in wastewater treatment is the coagulation
flocculation process, which is widely used, due to its simplicity and cost-effectiveness.
Regardless of the nature of the treated sample (e.g. various types of water or
wastewater) and the overall applied treatment scheme, coagulation-flocculation is
usually included, either as pre-, or as post-treatment step. The efficiency of
coagulation-flocculation strongly affects the overall treatment performance; hence, the
increase of the efficiency of coagulation stage seems to be a key factor for the
improvement of the overall treatment efficiency. The main reason for the higher
efficiency of organic polymers is their higher molecular weight (MW), which implies
better flocculation properties. Thus, the increase of molecular weight and size of the
pre-polymerized coagulants is thought to be the way for further improvement. The
general concept followed is, the introduction of various additives in the structure of a
pre-polymerized coagulant, in order to produce a homogenous, stable product with
higher MW and improved coagulation-flocculation performance, than the initial
reagent. The challenge to confront is the desirable combination of higher efficiency
and cost-effectiveness, which are the basic prerequisites for the development of new
products. Various additives were examined, which can be classified into two main
categories; inorganic and organic.
Chemical coagulants having harmful effects on human health. Even though
chemicals used in treating turbid water is a lack of superiority in footings of green
chemistry. It was reported through the scrutiny that there are adverse effects of
aluminium presence in drinking water that causes Alzheimer’s and related diseases.
Therefore, the amount of residual aluminium in treated water should be
controlled. Due to the presence of aluminium content, such process of treatment
creates disposal problems that affect the environment due to the large volume of
sludge. Thus, it is necessary to develop an environment-friendly and acceptable
alternative coagulant that can enhance if not replaced alum, ferric salts and artificial.
In this background, natural coagulants are apparent to be very practicable for emerging
countries.
Presently, alternative natural coagulants are highly demanded rather than
artificial, natural coagulants can be from renewable resources, and that are safe for
human health. However, in few cases it becomes necessary to purify the natural
coagulant as aid using extraction, modification, and engineering techniques to modify
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native properties of natural coagulants to enhance treatment process. Natural
coagulants are available at low price, ample in the source, biotransformation/
bioremediation and multipurpose.
Major concerns to use these by-products is conversion into adsorption material
to remove toxic and valuable metals, ultimately producers would get benefits and their
market value become high. Cassava peels contain a high amount of cyanogenic
glucosides that makes pulp unsuitable as animal fodder. Natural coagulants contain the
higher molecular weight of carbohydrates, proteins, and polysaccharides per unit area
than other primary food crops under climatic conditions. Landfilling has widely
adopted disposal method in Malaysia, as composting and recycling is not yet in
practice.
However, to my best knowledge, there is no literature that can describe the
abilities of CPS in treating wastewater. Therefore, this study is carried out to use the
green approach (cassava peels starch) as it is profusely available, cheaper and
renewable pioneer to produce coagulant that can treat wastewater. In the contemporary
study, coagulation-flocculation before and after in terms of test is conducted using CPS
to improve wastewater quality.
1.3 Research objectives
i. Characterization of institutional wastewater.
ii. To characterize the physical and chemical composition of cassava peel starch
(CPS) as coagulant aid.
iii. To determine the effect of alum, CPS and alum+CPS by varying pH, dosage
and settling time during batch study, for removal efficiency of turbidity, TSS,
and COD.
iv. To determine the mechanism of coagulation and flocculation based on
examination of CPS as coagulant aid characterization.
1.4 Research scope
The main focus of this research is the potential of the coagulant namely cassava peel
starch (CPS) to function like other conventional coagulants such as alum and iron
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15REFERENCES
Abidin, Z. Z., Ismail, N., Yunus, R., Ahamad, I. S., & Idris, A. (2011). A preliminary
study on Jatropha curcas as coagulant in wastewater treatment. Environmental
Technology, 32(9), 971-977.
Abiola, O.N. (2014). Appraisal of cassava starch as coagulant aid in the alum
coagulation of congo red from aqua system. International Journal of
Environmental Pollution and Solutions, 2(1), 47-58.
Abiyu, A., Yan, D., Girma, A., Song, X., & Wang, H. (2018). Wastewater treatment
potential of Moringa stenopetala over Moringa olifera as a natural coagulant,
antimicrobial agent and heavy metal removals. Cogent Environmental
Science, 4(1), 1433507.
Achak, M., Hafidi, A., Ouazzani, N., Sayadi, S. & Mandi, L. (2009). Low cost
biosorbent “banana peel” for the removal of phenolic compounds from olive
mill wastewater: kinetic and equilibrium studies. Journal of Hazardous
Materials, 166(1), 117–125.
Adamu, A., D.B. Adie, D.B. &Alka, U.A. (2014). A comparative study of the use of
Cassava species and alum in wastewater treatment. Nigerian Journal of
Technology, 33(2), pp. 170-175.
Adepoju, A. D., Adebisi, J. A., Odusote, J. K., Ahmed, I. I., & Hassan, S. B. (2016).
Preparation of Silica from Cassava Periderm. The Journal of Solid Waste
Technology and Management, 42(3), 216-221.
Aderemi, F.A. & Nworgu, F.C. (2007). Nutritional status of cassava peels and root
sieviate biodegraded with Aspergillusniger. American-Eurasian Journal
Agriculture & Environment Science, 2 (3), pp. 308-311.
Adetan, D. A., Adekoya, L. O., & Aluko, O. B. (2003). Characterisation of some
properties of cassava root tubers. Journal of Food Engineering, 59(4), 349-
353.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
146
Agamuthu.P, Hamid, F. S., & Khidzir, K. (2009). Evolution of solid waste
management in Malaysia: impacts and implications of the solid waste bill,
2007. Journal of Material Cycles and Waste Management, 11(2), 96-103.
Agamuthu, P., Tan, Y. S., & Fauziah, S. H. (2013). Bioremediation of hydrocarbon
contaminated soil using selected organic wastes. Procedia Environmental
Sciences, 18, 694-702.
Aguilar, M. I., Saez, J., Llorens, M., Soler, A., & Ortuno, J. F. (2002). Nutrient removal
and sludge production in the coagulation–flocculation process. Water
Research, 36(11), 2910-2919.
Ahmad Khan, N., Ibrahim, S., & Subramaniam, P. (2004). Elimation of Heavy Metals
from Wastewater Using Agricultural Wastes as Adsorbents. Malaysian
Journal of Science, 23(1).
Ahmad, A. L., Wong, S. S., Teng, T. T., & Zuhairi, A. (2008). Improvement of alum
and PACl coagulation by polyacrylamides (PAMs) for the treatment of pulp
and paper mill wastewater. Chemical Engineering Journal, 137(3), 510-517.
Ahmed, W., Neller, R., & Katouli, M. (2005). Evidence of septic system failure
determined by a bacterial biochemical fingerprinting method. Journal of
Applied Microbiology, 98(4), 910-920.
Akpa, J. G., & Dagde, K. K. (2012). Modification of cassava starch for industrial
uses. International Journal of Engineering and Technology, 2(6), 913-919.
Akponikpè, P. I., Wima, K., Yacouba, H., & Mermoud, A. (2011). Reuse of
institutional wastewater treated in macrophyte ponds to irrigate tomato and
eggplant in semi-arid West-Africa: Benefits and risks. Agricultural Water
Management, 98(5), 834-840.
Al Enezi, G., Hamoda, M. F., & Fawzi, N. (2004). Heavy metals content of
institutional wastewater and sludges in Kuwait. Journal of Environmental
Science and Health, Part A, 39(2), 397-407.
Ali, E. N., Muyibi, S. A., Salleh, H. M., Alam, M. Z., & Salleh, M. R. M. (2010).
Production of natural coagulant from Moringa oleifera seed for application in
treatment of low turbidity water. Journal of Water Resource and
Protection, 2(03), 259.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
147
Alexandre, M., & Dubois, P. (2000). Polymer-layered silicate nanocomposites:
preparation, properties and uses of a new class of materials. Materials Science
and Engineering: R: Reports, 28(1-2), 1-63.
Allen, T. (2003). Powder sampling and particle size determination. Elsevier
Al Tahmazi, T. (2017). Characteristics and Mechanisms Of Phosphorus Removal By
Dewatered Water Treatment Sludges And The Recovery.
Alvarenga, E., Hayrapetyan, S., Govasmark, E., Hayrapetyan, L., & Salbu, B. (2015).
Study of the flocculation of anaerobically digested residue and filtration
properties of bentonite based mineral conditioners. Journal of Environmental
Chemical Engineering, 3(2), 1399-1407.
American Public Health Association (APHA). (2000). Standard Methods of Chemical
Analysis Of Water and Waste Water, 20th ed., Washington DC
Amin, E.S., Awad, O. & El-Sayed, M. (1970). The mucilage of Opuntia ficus-indica.
Carbohydrate Research, 15, 159-161.
Antelo, J., Avena, M., Fiol, S., López, R., & Arce, F. (2005). Effects of pH and ionic
strength on the adsorption of phosphate and arsenate at the goethite–water
interface. Journal of Colloid and Interface Science, 285(2), 476-486.
Angreni, E. (2009). Review on Optimization of Conventional Drinking Water
Treatment Plant. World Applied Sciences Journal, 7(9), pp.1144-1151.
Antunes, S., Dionisio, L., Silva, M. C., Valente, M. S., Borrego, J. J., Lt, E., &
Albufeira, E. (2007). Coliforms as indicators of efficiency of wastewater
treatment plants. In Proceedings of the 3rd International Conference on
Energy, Environment, Ecosystems and Sustainable Development,
IASME/WSEAS, Agios Nikolaos, Greece (pp. 26-29).
APHA. AWWA. & WEF. (2012). Standard Methods for the Examination of Water
and Wastewater. 22nd ed. Washington, DC: American Public Health
Association.
Arceivala, S. J., & Asolekar, S. R. (2006). Wastewater Treatment for Pollution
Control and Reuse. Tata McGraw-Hill Education.
Asrafuzzaman, M., Fakhruddin, A. N. M., & Hossain, M. A. (2011). Reduction of
turbidity of water using locally available natural coagulants. ISRN
Microbiology, 2011.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
148
Aydın, H., Bulut, Y., & Yerlikaya, Ç. (2008). Removal of copper (II) from aqueous
solution by adsorption onto low-cost adsorbents. Journal of Environmental
Management, 87(1), 37-45.
Aziz, H. A., Alias, S., Adlan, M. N., Asaari, A. H., & Zahari, M. S. (2007). Colour
removal from landfill leachate by coagulation and flocculation
processes. Bioresource Technology, 98(1), 218-220.
Babatunde, A. O., & Zhao, Y. Q. (2007). Constructive approaches toward water
treatment works sludge management: an international review of beneficial
reuses. Critical Reviews in Environmental Science and Technology, 37(2),
129-164.
Babu, R., & Chaudhuri, M. (2005). Home water treatment by direct filtration with
natural coagulant. Journal of Water and Health, 3(1), 27-30.
Bagatin, R., Klemeš, J., Reverberi, A.P., Huisingh, D., 2014. Conservation and
improvements in water resource management: a global challenge. Journal of
Cleaner Production, 77, 1–9.
Bayoumi, S. A., Rowan, M. G., Beeching, J. R., & Blagbrough, I. S. (2010).
Constituents and secondary metabolite natural products in fresh and
deteriorated cassava roots. Phytochemistry, 71(5-6), 598-604.
Belbahloul, M., Zouhri, A. &Anouar, A. (2015). Bioflocculants extraction from
Cactaceae and their application in treatment of water and wastewater. Journal
of Water Process Engineering, 7, pp. 306–313
Beltran-Heredia, J., Sanchez-Martin, J.& Davila-Acedo M.A. (2011). Optimization of
the synthesis of a new coagulant from a tannin extract. Journal of Hazardous
Materials, 186, pp. 1704–1712.
Bendjeriou-Sedjerari, A., Azzi, J. M., Abou-Hamad, E., Anjum, D. H., Pasha, F. A.,
Huang, K. W. & Basset, J. M. (2013). Bipodal Surface Organometallic
Complexes with Surface N-Donor Ligands and Application to the Catalytic
Cleavage of C–H and C–C Bonds in n-Butane. Journal of the American
Chemical Society, 135(47), 17943-17951.
Benesi, I.R.M. (2005). Characterisation of Malawian Cassava Germplasm for
Diversity, Starch Extraction and Its Native and Modified Properties.
University of the Free State, Bloemfontein, South Africa. PhD. Thesis.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
149
Benesi, I. R. M., Labuschagne, M. T., Dixon, A. G. O., & Mahungu, N. M. (2004).
Genotype x environment interaction effects on native cassava starch quality
and potential for starch use in the commercial sector. African Crop Science
Journal, 12(3), 205-216.
BinAhmed, S., Ayoub, G., Al-Hindi, M., & Azizi, F. (2015). The effect of fast mixing
conditions on the coagulation–flocculation process of highly turbid
suspensions using liquid bittern coagulant. Desalination and Water
Treatment, 53(12), 3388-3396.
Bina, M. H., Mehdinejad, M., Nikaeen, H. & Attar, M. (2009). The effectiveness of
chitosan as natural coagulant aid in treating turbid waters. Journal of
Environmental Health Sciences and Engineering, 6 (4), pp. 247-252.
Binayake, R. A., & Jadhav, M. V. (2013). Applications of natural coagulants in water
purification. International Journal of Advanced Technology and Civil
Engineering, 2, 118-123.
Birima, A. H., Hammad, H. A., Desa, M. N. M., & Muda, Z. C. (2013). Extraction of
Natural Coagulant from Peanut Seeds for Treatment of Turbid Water. In IOP
Conference Series: Earth and Environmental Science (Vol. 16, No. 1, p.
012065). IOP Publishing.
Bisutti, I., Hilke, I., & Raessler, M. (2004). Determination of total organic carbon–an
overview of current methods. TrAC Trends in Analytical Chemistry, 23(10-11),
716-726.
Bitton, Gabriel. 2005. “Introduction to Wastewater Treatment.” Wastewater
Microbiology, 211–23.
Blott, S. J., & Pye, K. (2001). GRADISTAT: a grain size distribution and statistics
package for the analysis of unconsolidated sediments. Earth Surface Processes
and Landforms, 26(11), 1237-1248.
Bolto, B. &Gregory, J. (2007). Organic polyelectrolytes in water treatment. Water
Research, 41, pp. 2301 – 2324
Brar, S. K., Verma, M., Tyagi, R. D., & Surampalli, R. Y. (2010). Engineered
nanoparticles in wastewater and wastewater sludge–Evidence and
impacts. Waste Management, 30(3), 504-520.
Bratby, J. (2006). Coagulation and Flocculation in Water and Wastewater Treatment.
IWA publishing.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
150
Broin, M., Santaella, C., Cuine, S., Kokou, K., Peltier, G. & Joel, T. (2012). Flocculant
activity of recombinant protein from Moringa oleifera seed. Applied
Microbiology and Biotechnology, 60, (1), 114-119.
Cabral, J. P. (2010). Water microbiology. Bacterial pathogens and water. International
Journal of Environmental Research and Public Health, 7(10), 3657-3703.
Can, O. T., Kobya, M., Demirbas, E., & Bayramoglu, M. (2006). Treatment of the
textile wastewater by combined electrocoagulation. Chemosphere, 62(2), 181-
187.
Cañizares, P., Jiménez, C., Martínez, F., Rodrigo, M. A., & Sáez, C. (2009). The pH
as a key parameter in the choice between coagulation and electrocoagulation
for the treatment of wastewaters. Journal of Hazardous Materials, 163(1), 158-
164.
Carr, G. M., & Neary, J. P. (2008). Water Quality for Ecosystem and Human Health.
UNEP/Earthprint.
Caskey, J., Primus, R., 1986. The effect of anionic polyacrylamide molecular
conformation and configuration on flocculation effectiveness. Environ. Prog.
5,98–103.
Chan, Y. J., Chong, M. F., Law, C. L., & Hassell, D. G. (2009). A review on anaerobic–
aerobic treatment of industrial and institutional wastewater. Chemical
Engineering Journal, 155(1), 1-18.
Chandra, T. C., Mirna, M. M., Sunarso, J., Sudaryanto, Y., & Ismadji, S. (2009).
Activated carbon from durian shell: preparation and characterization. Journal
of the Taiwan Institute of Chemical Engineers, 40(4), 457-462
Chapman, D., & Kimstach, V. (1992). Selection of water quality variables-Chapter 3
of the Water Quality Assessments–A Guide to Use of Biota, Sediments, and
Water in Environmental Monitoring–. UNESCO/WHO/UNEP.
Chen, E., Wu, S., McClements, D. J., Li, B., & Li, Y. (2017). Influence of pH and
cinnamaldehyde on the physical stability and lipolysis of whey protein isolate-
stabilized emulsions. Food Hydrocolloids, 69, 103-110.
Cheng, R., & Ou, S. (2016). Application of Modified Starches in Wastewater
Treatment. Polymer Science: Research Advances, Practical Applications and
Educational Aspects.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
151
Chong, S. S., Aziz, A. R., & Harun, S. W. (2013). Fibre optic sensors for selected
wastewater characteristics. Sensors, 13(7), 8640-8668.
Chong, M. F. (2012). Direct flocculation process for wastewater treatment.
In Advances in water treatment and pollution prevention (pp. 201-230).
Springer, Dordrecht.
Choy, S.Y., Nagendra-Prasad, K.M., Wu, T.Y., Raghunandan, M.E. & Ramanan, R.N.
(2014). Utilization of plant-based natural coagulants as future alternatives
towards sustainable water clarification. Journal of Environmental Sciences, 26,
pp. 2178 – 2189.
Choy, S. Y., Prasad, K. M. N., Wu, T. Y., & Ramanan, R. N. (2015). A review on
common vegetables and legumes as promising plant-based natural coagulants
in water clarification. International Journal of Environmental Science and
Technology, 12(1), 367-390.
Chu, C. P., & Lee, D. J. (2004). Structural analysis of sludge flocs. Advanced Powder
Technology, 15(5), 515-532.
Chukwudi, B. C., & Uche, R. (2008). Flocculation of kaolinite clay using natural
polymer. Pac J Sci Technol, 9(2), 495-501.
Cieśla, K., Sartowska, B., & Królak, E. (2015). SEM studies of the structure of the
gels prepared from untreated and radiation modified potato starch. Radiation
Physics and Chemistry, 106, 289-302.
Connolly, M. A. (2005). Communicable disease control in emergencies: a field
manual: World Health Organization.
Czerwionka, K., Makinia, J., Pagilla, K. R., & Stensel, H. D. (2012). Characteristics
and fate of organic nitrogen in institutional biological nutrient removal
wastewater treatment plants. Water Research, 46(7), 2057-2066.
Davis, M. L. (2010). Water and Wastewater Engineering. McGraw-Hill.
Davis, M. L. & Cornwell, D. A. (2008). Introduction to Environmental Engineering.
4th Ed. New York NY: McGraw-Hill.
Groot De, R. S., Wilson, M. A., & Boumans, R. M. (2002). A typology for the
classification, description and valuation of ecosystem functions, goods and
services. Ecological Economics, 41(3), 393-408.
Demirbas, A. (2011). Waste management, waste resource facilities and waste
conversion processes. Energy Conversion and Management, 52(2), 1280-1287.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
152
Deshmukh, B. S., Pimpalkar, S. N., Rakhunde, R. M., & Joshi, V. A. (2013).
Evaluation performance of natural strychnos potatorum over the synthetic
coagulant alum, for the treatment of turbid water. Int J Innov Res Sci Eng
Technol, 2(11).
Devrimci, H.A, Yuksel, A.M. & Sanin, F.D. (2012). Algal alginate: A potential
coagulant for drinking water treatment. Desalination, 299, 16–21.
Dincer, A. R., & Kargi, F. (2001). Salt inhibition kinetics in nitrification of synthetic
saline wastewater. Enzyme and Microbial Technology, 28(7), 661-665.
Dokmeci, A. H., Ongen, A., & Dagdeviren, S. (2009). Environmental toxicity of
cadmium and health effect. Journal of Environmental Protection and
Ecology, 10(1), 84-93.
Drinan, J. E., & Spellman, F. (2012). Water and wastewater treatment: A guide for the
nonengineering professional. Crc Press.
Drouiche, N., Aoudj, S., Hecini, M., Ghaffour, N., Lounici, H., & Mameri, N. (2009).
Study on the treatment of photovoltaic wastewater using electrocoagulation:
Fluoride removal with aluminium electrodes—Characteristics of
products. Journal of Hazardous Materials, 169(1), 65-69.
Duan, J. & Gregory, J. (2003). Coagulation by hydrolysing metal salts. Advances in
Colloid and Interface Science, 100-102, 475-502.
Duong, L. V., Wood, B. J., & Kloprogge, J. T. (2005). XPS study of basic aluminium
sulphate and basic aluminium nitrate. Materials Letters, 59(14), 1932-1936.
Duruibe, J. O., Ogwuegbu, M. O. C. & Egwurugwu, J. N. (2007). Heavy metal
pollution and human biotoxic effects. International Journal of Physical
Sciences, 2(5), 112-118.
Edhirej, A., Sapuan, S. M., Jawaid, M., & Zahari, N. I. (2017). Cassava: Its polymer,
fiber, composite, and application. Polymer Composites, 38(3), 555-570.
Edzwald, J. (1993). Coagulation in drinking water treatment: particles, organics and
coagulants. Water Science and Technology, 27 (11), 21-35
Egerton, R. F. (2011). Electron Energy-Loss Spectroscopy in The Electron
Microscope. Springer Science & Business Media.
Eriksson, E., Auffarth, K., Henze, M., & Ledin, A. (2002). Characteristics of grey
wastewater. Urban water, 4(1), 85-104.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
153
Fakir, H., Gaede, S., Mulligan, M., & Chen, J. Z. (2012). Development of a novel
ArcCHECK™ insert for routine quality assurance of VMAT delivery
including dose calculation with in homogeneities. Medical physics, 39(7),
4203-4208.
Fedala, N., Lounici, H., Drouiche, N., Mameri, N. & Drouiche, M. (2015). Physical
parameters affecting coagulation of turbid water with Opuntia ficus-indica
cactus. Ecological Engineering, 77, 33-36.
Feng, W., Nie, W., He, C., Zhou, X., Chen, L., Qiu, K., & Yin, Z. (2014). Effect of
pH-responsive alginate/chitosan multilayers coating on delivery efficiency,
cellular uptake and biodistribution of mesoporous silica nanoparticles based
nanocarriers. ACS Applied Materials & Interfaces, 6(11), 8447-8460.
Ferrari, L., Kaufmann, J., Winnefeld, F., & Plank, J. (2010). Interaction of cement
model systems with superplasticizers investigated by atomic force microscopy,
zeta potential, and adsorption measurements. Journal of Colloid and Interface
Science, 347(1), 15-24.
Ferrari, C. T. D. R. R., Genena, A. K., & Lenhard, D. C. (2016). Use of natural
coagulants in the treatment of food industry effluent replacing ferric chloride:
a review. Científica, 44(3), 310-317.
Fetter, C. W., Boving, T., & Kreamer, D. (2017). Contaminant Hydrogeology.
Waveland Press.
Freitas, T. K. F. S., Oliveira, V. M., De Souza, M. T. F., Geraldino, H. C. L., Almeida,
V. C., Fávaro, S. L., & Garcia, J. C. (2015). Optimization of coagulation-
flocculation process for treatment of industrial textile wastewater using okra
(A. esculentus) mucilage as natural coagulant. Industrial Crops and
Products, 76, 538-544.
Fu, Y., Yu, S., & Han, C. (2009). Morphology and coagulation performance during
preparation of poly-silicic-ferric (PSF) coagulant. Chemical Engineering
Journal, 149(1-3), 1-10.
Gani, P., Sunar, N. M., Matias-Peralta, H., Latiff, A. A., & Razak, A. R. A. (2016).
Influence of initial cell concentrations on the growth rate and biomass
productivity of microalgae in institutional wastewater. Appl. Ecol. Environ.
Res, 14(2), 399-409.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
154
Gao, B. Y., Hahn, H. H., & Hoffmann, E. (2002). Evaluation of aluminium-silicate
polymer composite as a coagulant for water treatment. Water
Research, 36(14), 3573-3581.
Gao, B. Y., Q. Y. Yue and B. J. Wang, (2002), The chemical species distribution and
transformation of polyaluminium silicate chloride coagulant, Chemosphere,
46, 809–813.
Gao, B. Y., Chu, Y. B., Yue, Q. Y., Wang, B. J., & Wang, S. G. (2005).
Characterization and coagulation of a polyaluminium chloride (PAC)
coagulant with high Al13 content. Journal of Environmental
Management, 76(2), 143-147.
Garner, A., Preuss, M., & Frankel, P. (2014). A method for accurate texture
determination of thin oxide films by glancing-angle laboratory X-ray
diffraction. Journal of Applied Crystallography, 47(2), 575-583.
Gee, G. W., & Or, D. (2002). 2.4 Particle-size analysis. Methods of Soil Analysis.
Part, 4(598), 255-293.
Gharsallaoui, A., Roudaut, G., Chambin, O., Voilley, A., & Saurel, R. (2007).
Applications of spray-drying in microencapsulation of food ingredients: An
overview. Food Research International, 40(9), 1107-1121.3
Gorde, S. P., & Jadhav, M. V. (2013). Assessment of water quality parameters: a
review. Journal of Engineering Research and Applications, 3(6), 2029-2035.
Garode, A. M. and N. A. Sonune (2015). “Bacteriological and Physico-Chemical
Assessment of Institutional Wastewater from Buldana District, India.”
International Journal of Current Microbiology and Applied Sciences, 4(7),
577–584.
Ghabbour, E. A., Davies, G., Lam, Y. Y., & Vozzella, M. E. (2004). Metal binding by
humic acids isolated from water hyacinth plants (Eichhornia crassipes [Mart.]
Solm-Laubach: Pontedericeae) in the Nile Delta, Egypt. Environmental
Pollution, 131(3), 445-451.
Ghafari, S., Aziz, H. A., Isa, M. H., & Zinatizadeh, A. A. (2009). Application of
response surface methodology (RSM) to optimize coagulation–flocculation
treatment of leachate using poly-aluminium chloride (PAC) and alum. Journal
of Hazardous Materials, 163(2), 650-656.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
155
Ghebremichael, K.A.,Gunaratna, K.R., Henriksson, H., Brumer, H. & Dalhammar, G.
(2005). A simple purification and activity assay ofthe coagulant protein from
Moringa oleifera seed. Water Research, 39, 2338–2344.
Ghebremichael, Kebreab, Juliet Abaliwano, and Gary Amy. (2009). “Combined
Natural Organic and Synthetic Inorganic Coagulants for Surface Water
Treatment.” Journal of Water Supply: Research and Technology - AQUA,
58(4):267–76.
Gebbie, Petter. (2001). “Using Polyaluminium Coagulants in Water Treatment”. 64th
Annual Water Industry Engineers and Operators’ Conference (39): 39-47
Gregory, J. (2005). Particles in Water: Properties and Processes. CRC Press.
Giwa, S. O., Said, D. Y., Ibrahim, M. D., & Giwa, A. (2017). Textile
WastewaterTreatment Using Sodom Apple (Calotropis procera)-Aided
Tamarind Seed as a Coagulant. International Journal of Engineering Research
in Africa (Vol. 32, pp. 76-85). Trans Tech Publications.
Gillberg, L., Hansen, B., Karlsson, I., Enkel, A. N., & Palsson, A. (2003). About water
treatment. Kemira Kemwater.
Gleick, P. H. (2006). Water and terrorism. Water policy, 8(6), 481-503.
Gok, C., Turkozu, D. A. & Aytas, S. (2011). Removal of Th(IV) ions from aqueous
solution using bi-functionalized algae-yeast biosorbent. Journal of
Radioanalytical and Nuclear Chemistry, 287(2), 533–541.
Gokkus, Ö., Yıldız, Y. Ş., & Yavuz, B. (2012). Optimization of chemical coagulation
of real textile wastewater using Taguchi experimental design
method. Desalination and Water Treatment, 49(1-3), 263-271
Gonçalves, M. S. T. (2008). Fluorescent labeling of biomolecules with organic
probes. Chemical reviews, 109(1), 190-212.
Gradzielski, M., & Hoffmann, I. (2018). Polyelectrolyte-Surfactant Complexes
(PESCs) Composed of Oppositely Charged Components. Current Opinion in
Colloid & Interface Science.
Grigg, N. S. (2010). Water, wastewater, and stormwater infrastructure management.
CRC Press.
Guida, M., Mattei, M., Della Rocca, C., Melluso, G., & Meriç, S. (2007). Optimization
of alum-coagulation/flocculation for COD and TSS removal from five
institutional wastewater. Desalination, 211(1-3), 113-127.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
156
Gupta, R. C. (2012). Energy and Environmental Management in Metallurgical
Industries. PHI Learning Pvt. Ltd.
Haas, C. N., Thayyar-Madabusi, A., Rose, J. B., & Gerba, C. P. (2000). Development
of a dose-response relationship for Escherichia coli O157: H7. International
Journal of Food Microbiology, 56(2), 153-159.
Hammer Sr, M. J., & Hammer Jr, M. J. (2013). Water and Wastewater Technology:
Pearson New International Edition. Pearson Higher Ed.
Hanaor, D., Michelazzi, M., Leonelli, C., & Sorrell, C. C. (2012). The effects of
carboxylic acids on the aqueous dispersion and electrophoretic deposition of
ZrO2. Journal of the European Ceramic Society, 32(1), 235-244.
Hassan, M. A., Li, T. P., & Noor, Z. Z. (2009). Coagulation and flocculation treatment
of wastewater in textile industry using chitosan. Journal of Chemical and
Natural Resources Engineering, 4(1), 43-53.
Hassan, M., Hassan, R., Mahmud, M. A., Pia, H. I., Hassan, M. A., & Uddin, M. J.
(2017). Sewage waste water characteristics and its management in urban areas-
A case study at Pagla Sewage Treatment Plant, Dhaka. Urban and Regional
Planning, 2(3), 13-6.
Hassan, M. M. (2012). Removal Efficiency of Some Toxic Heavy Metals from Water
During Coagulation Using Polyaluminium Chloride, Adsorption Using
Natural Clay (Alrawag) or Durah Activated Carbon and Reverse Osmosis
(Ph.D thesis, Sudan University of Science and Technology).
Hayden, H.S., Blomster, J., Maggs, C.A., Silva, P.C., Stanhope, M.J. &Walland, J.R.
(2003). Linnaeus was right all along: Ulva and Enteromorpha not distinct
genera. European Journal of Phycology, 38 (3), 277-29.
Hendricks, D. (2006). Water Treatment Unit Processes: Physical and Chemical. CRC
press.
Henze, M., & Comeau, Y. (2008). Wastewater characterization. Biological wastewater
treatment: Principles Modelling and Design, 33-52.
Hilal, N., Al‐Abri, M., & Al‐Hinai, H. (2006). Enhanced membrane pre‐treatment
processes using macromolecular adsorption and coagulation in desalination
plants: a review. Separation Science and Technology, 41(3), 403-453.
Hoover, R. (2001). Composition, molecular structure, and physicochemical properties
of tuber and root starches: a review. Carbohydrate polymers, 45(3), 253-267.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
157
Hunter, R. J. (2013). Zeta Potential in Colloid Science: Principles and
Applications (Vol. 2). Academic press.
Iqbal, M., Saeed, A., & Zafar, S. I. (2009). FTIR spectrophotometry, kinetics and
adsorption isotherms modeling, ion exchange, and EDX analysis for
understanding the mechanism of Cd2+ and Pb2+ removal by mango peel
waste. Journal of Hazardous Materials, 164(1), 161-171.
Ismanto, A. E., Wang, S., Soetaredjo, F. E., & Ismadji, S. (2010). Preparation of
capacitor’s electrode from cassava peel waste. Bioresource
Technology, 101(10), 3534-3540.
Islam, M. S., Ismail, B. S., Barzani, G. M., Sahibin, A. R., & EKhwan, T. M. (2012).
Hydrological assessment and water quality characteristics of Chini Lake,
Pahang, Malaysia. American-Eurasian Journal Agriculture & Environment
Science, 12(6), 737-749.
Iturriaga, L., & Nazareno, M. (2016). Functional Components and Medicinal
Properties of Cactus Products. In Functional Properties of Traditional
Foods (pp. 251-269). Springer, Boston, MA.
IWK. (2013). Sewage Treatment. Indah Water Konsortium Sdn Bhd. Retrieved March
22, 2014, from http://www.iwk.com.my/v/customer/ sludge-treatment.
Jadhav, M. V., & Mahajan, Y. S. (2011). Advancement of chitosan-based adsorbents
for enhanced and selective adsorption performance in water/wastewater
treatment. World Review of Science, Technology and Sustainable
Development, 8(2-4), 276-311.
Janes, K. A., Calvo, P., & Alonso, M. J. (2001). Polysaccharide colloidal particles as
delivery systems for macromolecules. Advanced Drug Delivery
Reviews, 47(1), 83-97.
Jarvis, P., Jefferson, B., Gregory, J. O. H. N., & Parsons, S. A. (2005). A review of
floc strength and breakage. Water research, 39(14), 3121-3137.
Jay-lin, J., 2003. Starch, Chemical and Functional Properties of Food Saccharides
Press.
Jee, C. (2007). Environmental Biotechnology. APH Publishing.
Jeevanaraj, P., Hashim, Z., Elias, S. M., & Aris, A. Z. (2018). Risk of Dietary Mercury
Exposure via Marine Fish Ingestion: Assessment among Potential Mothers in
Malaysia. Exposure and Health, 1-10.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
158
Jelic, A., Gros, M., Ginebreda, A., Cespedes-Sánchez, R., Ventura, F., Petrovic, M.,
& Barcelo, D. (2011). Occurrence, partition and removal of pharmaceuticals in
sewage water and sludge during wastewater treatment. Water Research, 45(3),
1165-1176.
Jeon, J.R., Kim, E.J., Kim, Y.M., Murugesan, K., Kim, J.H. & Chang, Y.S. (2009).
Use of grape seed and its natural polyphenol extracts as a natural organic
coagulant for removal of cationic dyes. Chemosphere, 77, 1090–1098
Jia, D., Cheng, H., & Han, C. C. (2018). Interplay between Caging and Bonding in
Binary Concentrated Colloidal Suspensions. Langmuir.
Jiang, J.Q. (2015). The role of coagulation in water treatment. Current Opinion in
Chemical Engineering, 8, 36–44.
Jiraprasertkul, W., Nuisin, R., Jinsart, W., & Kiatkamjornwong, S. (2006). Synthesis
and characterization of cassava starch graft poly (acrylic acid) and poly
[(acrylic acid) ‐co‐acrylamide] and polymer flocculants for wastewater
treatment. Journal of Applied Polymer Science, 102(3), 2915-2928.
Jyothi, A. N., Sreekumar, J., Moorthy, S. N., & Sajeev, M. S. (2010). Response Surface
Methodology for the Optimization and Characterization of Cassava Starch‐
graft‐Poly (acrylamide). Starch‐Stärke, 62(1), 18-27.
Kakoi, B., Kaluli, J. W., Ndiba, P., & Thiong’o, G. (2016). Banana pith as a natural
coagulant for polluted river water. Ecological Engineering, 95, 699-705.
Kampeerapappun, P., Aht-ong, D., Pentrakoon, D., & Srikulkit, K. (2007). Preparation
of cassava starch/montmorillonite composite film. Carbohydrate
Polymers, 67(2), 155-163.
Kansal, S. K., & Kumari, A. (2014). Potential of M. oleifera for the treatment of water
and wastewater. Chemical Reviews, 114(9), 4993-5010.
Kazi, T., & Virupakshi, A. (2013). Treatment of tannery wastewater using natural
coagulants. International Journal of Innovative Research in Science,
Engineering and Technology, 2(8), 4061-4068.
Kelly, A., & Knowles, K. M. (2012). Crystallography and crystal defects. John Wiley
& Sons.
Keeley, J., Jarvis, P., & Judd, S. J. (2012). An economic assessment of coagulant
recovery from water treatment residuals. Desalination, 287, 132-137.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
159
Kilhoffer, K., & Cornell-Reader, S. R. (2015). A Water Quality Study of Middle Spring
Creek and Burd Run, Shippensburg, PA.
Kim, J., Anderson, J. L., Garoff, S., & Sides, P. J. (2002). Effects of zeta potential and
electrolyte on particle interactions on an electrode under ac
polarization. Langmuir, 18(14), 5387-5391.
Kim, J. K., & Lawler, D. F. (2005). Characteristics of zeta potential distribution in
silica particles. Bulletin of the Korean Chemical Society, 26(7), 1083-1089.
Koohestanian, A., Hosseini, M., & Abbasian, Z. (2008). The separation method for
removing of colloidal particles from raw water. American-Eurasian Journal of
Agricultural and Environmental Science, 4(2), 266-273.
Kolpin, D. W., Furlong, E. T., Meyer, M. T., Thurman, E. M., Zaugg, S. D., Barber,
L. B., & Buxton, H. T. (2002). Pharmaceuticals, hormones, and other organic
wastewater contaminants in US streams, 1999− 2000: A national
reconnaissance. Environmental Science & Technology, 36(6), 1202-1211.
Komorowska-Kaufman, M., Majcherek, H., & Klaczyński, E. (2006). Factors
affecting the biological nitrogen removal from wastewater. Process
Biochemistry, 41(5), 1015-1021.
Kothari, C. R. (2004). Research methodology: Methods and Techniques. New Age
International.
Krishnaswamy, R., & Ayoub, A. (2018). Recent Advances in Cationic and Anionic
Polysaccharides Fibers. In Polysaccharide-based Fibers and Composites (pp.
63-75). Springer, Cham.
Kumar, U. (2006). Agricultural products and by-products as a low-cost adsorbent for
heavy metal removal from water and wastewater: A review. Scientific
Research and Essays, 1(2), 033-037.
Kunishima, M., Kawachi, C., Hioki, K., Terao, K., & Tani, S. (2001). Formation of
carboxamides by direct condensation of carboxylic acids and amines in
alcohols using a new alcohol-and water-soluble condensing agent: DMT-
MM. Tetrahedron, 57(8), 1551-1558.
Kurniawan, A., Kosasih, A.N., Febrianto, J., Jub,Y.H., Sunarso, J., Indraswati, N.
&Ismadji, S. (2011). Evaluation of cassava peel waste as low cost biosorbent
for Ni-sorption: Equilibrium, kinetics, thermodynamics and mechanism.
Chemical Engineering Journal, 172, 158– 166.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
160
Kongkiattikajorn, J. & Sornvoraweat, B. (2011). Comparative Study of Bioethanol
Production from Cassava Peels by Monoculture and Co-Culture of Yeast.
Kasetsart Journal of Natural Sciences, 45, 268-274.
Kosasih, A. N., Febrianto, J., Sunarso, J., Ju, Y. H., Indraswati, N., & Ismadji, S.
(2010). Sequestering of Cu (II) from aqueous solution using cassava peel
(Manihot esculenta). Journal of Hazardous Materials, 180(1), 366-374
Kukić, D. V., Šćiban, M. B., Prodanović, J. M., Tepić, A. N., & Vasić, M. A. (2015).
Extracts of fava bean (Vicia faba L.) seeds as natural coagulants. Ecological
Engineering, 84, 229-232.
Laus, R., Costa, T. G., Szpoganicz, B., & Fávere, V. T. (2010). Adsorption and
desorption of Cu (II), Cd (II) and Pb (II) ions using chitosan crosslinked with
epichlorohydrin-triphosphate as the adsorbent. Journal of Hazardous
Materials, 183(1-3), 233-241.
Lchhawani, P., & Ghosh, M. G. (2007). Studies on Polymeric Bioflocculant Producing
Microorganisms (Ph.D thesis).
Lebot, V. (2009). Tropical Root and Tuber Crops: Cassava, Sweet Potato, Yams and
Aroids (No. 17). Cabi.
Le Corre, K. S., Valsami-Jones, E., Hobbs, P., Jefferson, B., & Parsons, S. A. (2007).
Agglomeration of struvite crystals. Water Research, 41(2), 419-425.
Le Corre, D., Bras, J., & Dufresne, A. (2010). Starch nanoparticles: a
review. Biomacromolecules, 11(5), 1139-1153.
Lee, K. E., Morad, N., Teng, T. T., & Poh, B. T. (2012). Development, characterization
and the application of hybrid materials in coagulation/flocculation of
wastewater: A review. Chemical Engineering Journal, 203, 370-386.
Lee, C. S., Robinson, J., & Chong, M. F. (2014). A review on application of flocculants
in wastewater treatment. Process Safety and Environmental Protection, 92(6),
489-508.
Lin, J. L., Huang, C., Chin, C. J. M., & Pan, J. R. (2008). Coagulation dynamics of
fractal flocs induced by enmeshment and electrostatic patch
mechanisms. Water Research, 42(17), 4457-4466.
Illés, E., & Tombácz, E. (2006). The effect of humic acid adsorption on pH-dependent
surface charging and aggregation of magnetite nanoparticles. Journal of
Colloid and Interface Science, 295(1), 115-123.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
161
Łobos-Moysa, E., & Bodzek, M. (2012). Application of hybrid biological techniques
to the treatment of institutional wastewater containing oils and
fats. Desalination and Water Treatment, 46(1-3), 32-37.
Loehr, R. (2012). Agricultural Waste Management: Problems, Processes, and
Approaches. Elsevier.
Loehr, R. (2012). Pollution Control for Agriculture. Elsevier.
Luchese, C. L., Spada, J. C., & Tessaro, I. C. (2017). Starch content affects
physicochemical properties of corn and cassava starch-based films. Industrial
Crops and Products, 109, 619-626.
Lu, X., Chen, Z., & Yang, X. (1999). Spectroscopic study of aluminium speciation in
removing humic substances by Al coagulation. Water Research, 33(15), 3271-
3280.
Luo, Y., Guo, W., Ngo, H. H., Nghiem, L. D., Hai, F. I., Zhang, J., ... & Wang, X. C.
(2014). A review on the occurrence of micropollutants in the aquatic
environment and their fate and removal during wastewater treatment. Science
of the Total Environment, 473, 619-641.
Luu, K. K. N. (2000). Study of coagulation and settling processes for implementation
in Nepal (Ph.D thesis, Massachusetts Institute of Technology).
Lyklema, J. (2006). Overcharging, charge reversal: chemistry or physics?. Colloids
and Surfaces A: Physicochemical and Engineering Aspects, 291(1-3), 3-12.
Ma, M., Liu, R., Liu, H., Qu, J., & Jefferson, W. (2012). Effects and mechanisms of
pre-chlorination on Microcystis aeruginosa removal by alum coagulation:
significance of the released intracellular organic matter. Separation and
Purification Technology, 86, 19-25.
Mabrouk, M.E.M. (2014). Production of flocculant by the marine actinomycete
Nocardiopsis aegyptia sp. nov. Life Science Journal, 11(12), pp. 27-35.
Madge, B. A., & Jensen, J. N. (2006). Ultraviolet disinfection of fecal coliform in
institutional wastewater: effects of particle size. Water Environment
Research, 78(3), 294-304.
Maheswari, R. U., & EuginAmala, V. (2015). Analyzing and Determining the Activity
of Antimicrobial, Functional Group and Phytochemicals of Cymbopogon
citratus using Well Diffusion, FT-IR and HPLC. Int. J. of Science and
Research, 4, 138-141.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
162
Maier, J. (2004). Physical Chemistry of Ionic Materials: Ions and Electrons in Solids.
John Wiley & Sons.
Manahan, S. (2017). Environmental Chemistry. CRC press.
Mandala, I. G., Palogou, E. D., & Kostaropoulos, A. E. (2002). Influence of
preparation and storage conditions on texture of xanthan–starch
mixtures. Journal of Food Engineering, 53(1), 27-38.
Maqbool, N., Khan, Z., & Asghar, A. (2016). Reuse of alum sludge for phosphorus
removal from institutional wastewater. Desalination and Water
Treatment, 57(28), 13246-13254.
Marques, A. P., Reis, R. L., & Hunt, J. A. (2002). The biocompatibility of novel starch-
based polymers and composites: in vitro studies. Biomaterials, 23(6), 1471-
1478.
Mat, E. A. T., Shaari, J., & How, V. K. (2013). Wastewater Production, Treatment,
and Use in Malaysia. In Safe Use of Wastewater in Agriculture 5th Regional
Workshop Southeast and Eastern Asia, Bali, Indonesia.
Matilainen, A., Vepsäläinen, M., & Sillanpää, M. (2010). Natural organic matter
removal by coagulation during drinking water treatment: a review. Advances
in Colloid and Interface Science, 159(2), 189-197.
Mavura, W.J., Chemelil, M.C., Saenyi, W.W., Mavura, H.K., 2008. Investigation of
chemical and biochemical properties of Maerua subcor data plant extract: a
local water clarification agent. Bull. Chem. Soc. Ethiop. 22, 143–148.
Mayer, F. D., Gasparotto, J. M., Klauck, E., Werle, L. B., Jahn, S. L., Hoffmann, R.,
& Mazutti, M. A. (2015). Conversion of cassava starch to ethanol and a
byproduct under different hydrolysis conditions. Starch‐Stärke, 67(7-8), 620-
628.
McCurdy, K., Carlson, K., & Gregory, D. (2004). Floc morphology and cyclic
shearing recovery: comparison of alum and polyaluminum chloride
coagulants. Water Research, 38(2), 486-494.
Meraz, K.A.S., Vargas, S.M.P., Maldonado, J.T.L., Bravo, J.M.C., Guzman, M.T.O.
& Maldonado, E.A.L. (2015). Eco-friendly innovation for nejayote
coagulation–flocculation process using chitosan: Evaluation through zeta
potential measurements. Chemical Engineering Journal, 284, 536–542.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
163
Metcalf and Eddy. Wastewater Engineering Treatment and Disposal Reuse. 3rd
edition, revised by Tchobanoglous. G. and Burton, F.L., Singapore: McGraw
Hill, (1991), 351-352.
Metcalf X, Eddy X (2003). Wastewater Engineering: Treatment and Reuse. In:
Wastewater Engineering, Treatment, Disposal and Reuse. Techobanoglous G,
Burton FL, Stensel HD (eds), Tata McGraw Hill Publishing Company Limited,
4th edition. New Delhi, India.
Michalak, A. (2006). Phenolic compounds and their antioxidant activity in plants
growing under heavy metal stress. Polish Journal of Environmental
Studies, 15(4), 523.
Miretzky, P., Saralegui, A., & Cirelli, A. F. (2004). Aquatic macrophytes potential for
the simultaneous removal of heavy metals (Buenos Aires,
Argentina). Chemosphere, 57(8), 997-1005.
Miu, A. C., & Benga, O. (2006). Aluminium and Alzheimer's disease: a new look.
Journal of Alzheimer's Disease, 10(2, 3), 179-201.
Mohammed, T. J., & Shakir, E. (2017). Effect of settling time, velocity gradient, and
camp number on turbidity removal for oilfield produced water. Egyptian
Journal of Petroleum.
Mohd-Asharuddin, S., Othman, N., Zin, N. S. M., & Tajarudin, H. A. (2017). A
Chemical and Morphological Study of Cassava Peel: A Potential Waste as
Coagulant Aid. In MATEC Web of Conferences (Vol. 103, p. 06012). EDP
Sciences.
Molden, D. (2013). Water for Food Water for Life: A Comprehensive Assessment of
Water Management in Agriculture. Routledge.
Moh, Y. C., & Manaf, L. A. (2014). Overview of household solid waste recycling
policy status and challenges in Malaysia. Resources, Conservation and
Recycling, 82, 50-61.
Moody, C. A., Martin, J. W., Kwan, W. C., Muir, D. C., & Mabury, S. A. (2002).
Monitoring perfluorinated surfactants in biota and surface water samples
following an accidental release of fire-fighting foam into Etobicoke
Creek. Environmental Science & Technology, 36(4), 545-551.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
164
Morrall, D., McAvoy, D., Schatowitz, B., Inauen, J., Jacob, M., Hauk, A., & Eckhoff,
W. (2004). A field study of triclosan loss rates in river water (Cibolo Creek,
TX). Chemosphere, 54(5), 653-660.
Moss, B. R. (2009). Ecology of Fresh Waters: Man and Medium, Past to Future. John
Wiley & Sons.
Muhammad, I. M., Abdulsalam, S., Abdulkarim, A., & Bello, A. A. (2015). Water
melon seed as a Potential coagulant for water treatment. Global Journal of
Research in Engineering.
Mulyani, H., Budianto, G. P. I., Margono, & Kaavessina, M. (2018, February). The
influence of pH adjustment on kinetics parameters in tapioca wastewater
treatment using aerobic sequencing batch reactor system. In AIP Conference
Proceedings (Vol. 1931, No. 1, p. 030007). AIP Publishing.
Murugananthan, M., Raju, G. B., & Prabhakar, S. (2004). Separation of pollutants
from tannery effluents by electro flotation. Separation and Purification
Technology, 40(1), 69-75.
Murugananthan, M., Bhaskar Raju, G., & Prabhakar, S. (2005). Removal of tannins
and polyhydroxy phenols by electro‐chemical techniques. Journal of Chemical
Technology and Biotechnology, 80(10), 1188-1197.
Muruganandam, L., Kumar, M. S., Jena, A., Gulla, S., & Godhwani, B. (2017,
November). Treatment of waste water by coagulation and flocculation using
biomaterials. In IOP Conference Series: Materials Science and
Engineering (Vol. 263, No. 3, p. 032006). IOP Publishing.
Muthuraman, G. & Sasikala, S. (2014). Removal of turbidity from drinking water
using natural coagulants. Journal of Industrial and Engineering Chemistry, 20,
1727–1731.
Muyibi, S.A. & Evison, L.M. (1995). Moringa oleifera seeds for softening hard water.
Water Research, 29(4), 1099-1105.
Naidoo, D., Moola, S., & Place, H. (2013). Discussion Paper on The Role of Water
and the Water Sector in the Green Economy Within the Context of The New
Growth Path.
Narasiah, K. S., Vogel, A., & Kramadhati, N. N. (2002). Coagulation of turbid waters
using Moringa oleifera seeds from two distinct sources. Water Science and
Technology: Water Supply, 2(5-6), 83-88.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
165
Ndabigengesere, A., Narasiah, K.S. & Talbot, B.G. (1995). Active agents and
mechanism of coagulation of turbid waters using Moringa oleifera. Water
Research, 29(2), 703-710.
Neralla, S., Weaver, R. W., Lesikar, B. J., & Persyn, R. A. (2000). Improvement of
institutional wastewater quality by subsurface flow constructed
wetlands. Bioresource Technology, 75(1), 19-25.
Nilanjana, R. (2005). Use of plant material as natural coagulants for treatment of
wastewater. Visionri Nous, 1, 2–5.
Nobel, P.S., Cacelier, J. & Andrade, J.L. (1992). Mucilage in Cacti: Its apopastic
capantance, associated solutes and influence on tissue relations. Journal of
Experimental Botany, 43, 641-648.
Nweke, F.I., Spencer, D.S.C. &Lynem, J.K. (2002). The Cassava Transformation –
Africa’s Best Kept Secret. Michigan State University Press: East Lansing.
O’Brien, S., & Wang, Y. J. (2008). Susceptibility of annealed starches to hydrolysis
by α-amylase and glucoamylase. Carbohydrate Polymers, 72(4), 597-607.
Okuda, T., Aloysius U. Baes, A.U., Nishijima, W. & Okada, M. (1999). Improvement
of extraction method of coagulation active components from Moringa oleifera
seed. Water Research, 33(15), 3373-3378.
Oladoja, N. A., Saliu, T. D., Ololade, I. A., Anthony, E. T., & Bello, G. A. (2017). A
new indigenous green option for turbidity removal from aqueous
system. Separation and Purification Technology, 186, 166-174.
Oladoja, N.A. (2015). Headway on natural polymeric coagulants in water and
wastewater treatment operations. Journal of Water Process Engineering, 6,
174–192.
Oller, I., Malato, S., & Sánchez-Pérez, J. (2011). Combination of advanced oxidation
processes and biological treatments for wastewater decontamination—a
review. Science of The Total Environment, 409(20), 4141-4166.
Othman, N., Abd-Rahim, N. S., Tuan-Besar, S. N. F., Mohd-Asharuddin, S., & Kumar,
V. (2018, February). A Pontential Agriculture Waste Material as Coagulant
Aid: Cassava Peel. In IOP Conference Series: Materials Science and
Engineering (Vol. 311, No. 1, p. 012022). IOP Publishing.
Ozacar, M. &Sengil, A. (2000). Effectiveness of tannins obtained from valonia as a
coagulant aid for dewatering of sludge. Water Research, 34(2), 1407-1412.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
166
Özacar, M., & Şengil, I. A. (2003). Adsorption of reactive dyes on calcined alunite
from aqueous solutions. Journal of Hazardous Materials, 98(1-3), 211-224.
Özacar, M., & Şengil, İ. A. (2005). Adsorption of metal complex dyes from aqueous
solutions by pine sawdust. Bioresource Technology, 96(7), 791-795.
Pan, J.R., Huang, C., Chen, S., Chung, Y.-C., 1999. Evaluation of a modified chitosan
biopolymer for coagulation of colloidal particles. Colloids and Surfaces A:
Physicochemical and Engineering Aspects 147 (3), 359e364.
Park, B. J., Pantina, J. P., Furst, E. M., Oettel, M., Reynaert, S., & Vermant, J. (2008).
Direct measurements of the effects of salt and surfactant on interaction forces
between colloidal particles at water− oil interfaces. Langmuir, 24(5), 1686-
1694.
Parker, D. S., Barnard, J., Daigger, G. T., Tekippe, R. J., & Wahlberg, E. J. (2001).
The future of chemically enhanced primary treatment: evolution not
revolution. Water 21, 49-56.
Patel, H., & Vashi, R. T. (2012). Removal of Congo Red dye from its aqueous solution
using natural coagulants. Journal of Saudi Chemical Society, 16(2), 131-136.
Patil, S., Sandberg, A., Heckert, E., Self, W., & Seal, S. (2007). Protein adsorption and
cellular uptake of cerium oxide nanoparticles as a function of zeta
potential. Biomaterials, 28(31), 4600-4607.
Pérez, S., & Bertoft, E. (2010). The molecular structures of starch components and
their contribution to the architecture of starch granules: A comprehensive
review. Starch‐Stärke, 62(8), 389-420.
Prabhakaran, S. S., Sahu, S. K., Dev, P. J., & Shanmugam, P. (2018). Modelling the
light absorption coefficients of oceanic waters: Implications for underwater
optical applications. Journal of Marine Systems, 181, 14-24.
Prakash, N. B., Sockan, V., & Jayakaran, P. (2014). Waste water treatment by
coagulation and flocculation. International Journal of Engineering Science
and Innovative Technology (IJESIT), 3(2), 479-484.
Prasad, M. N. V., & Freitas, H. (2000). Removal of toxic metals from solution by
leaf, stem and root phytomass of Quercus ilex L. (holly oak). Environmental
Pollution, 110(2), 277-283.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
167
Prasad, S. M., & Rao, B. S. (2013). Environmental sciences a low-cost water treatment
by using a natural coagulant. International Journal of Research in Engineering
and Technology, 2, 2319-1163.
Price, J. R., Ledford, S. H., Ryan, M. O., Toran, L., & Sales, C. M. (2018). Wastewater
treatment plant effluent introduces recoverable shifts in microbial community
composition in receiving streams. Science of the Total Environment, 613,
1104-1116.
Pritchard M, Craven T, Mkandawire T, Edmondson AS, O’Neill JGA (2010)
Comparison between Moringa oleifera and chemical coagulants in the
purification of drinking water – an alternative sustainable solution for
developing countries. Physics and Chemistry of Earth, 35, 798-805.
Prüss-Üstün, A., & Neira, M. (2016). Preventing disease through healthy
environments: a global assessment of the burden of disease from
environmental risks. World Health Organization.
Qasim, S. R., & Zhu, G. (2017). Wastewater Treatment and Reuse, Theory and Design
Examples, Volume 1: Principles and Basic Treatment.
Quadros Melo, D., de Oliveira Sousa Neto, V., de Freitas Barros, F. C., Raulino, G. S.
C., Vidal, C. B., & do Nascimento, R. F. (2016). Chemical modifications of
lignocellulosic materials and their application for removal of cations and
anions from aqueous solutions. Journal of Applied Polymer Science, 133(15).
Kumar, R., Mago, G., Balan, V., & Wyman, C. E. (2009). Physical and chemical
characterizations of corn stover and poplar solids resulting from leading
pretreatment technologies. Bioresource Technology, 100(17), 3948-3962.
Rangel-Mendez, J. R. (2001). Adsorption of toxic metals from water using commercial
and modified granular and fibrous activated carbons (Ph.D thesis, © JR
Rangel-Mendez).
Ralston, J., & Dukhin, S. S. (1999). The interaction between particles and
bubbles. Colloids and Surfaces A: Physicochemical and Engineering
Aspects, 151(1-2), 3-14.
Ramavandi, B., & Farjadfard, S. (2014). Removal of chemical oxygen demand from
textile wastewater using a natural coagulant. Korean Journal of Chemical
Engineering, 31(1), 81-87
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
168
Razali, M. A., Sanusi, N., Ismail, H., Othman, N., & Ariffin, A. (2012). Application
of response surface methodology (RSM) for optimization of cassava starch
grafted polyDADMAC synthesis for cationic properties. Starch‐
Stärke, 64(12), 935-943.
Razali, M. A. A., & Ariffin, A. (2015). Polymeric flocculant based on cassava starch
grafted polydiallyldimethylammonium chloride: Flocculation behavior and
mechanism. Applied Surface Science, 351, 89-94.
Remy Mohd Rozainy, M. A. Z., Hasif, M., Syafalny. Puganeshwary, P. & AfifI, A.
(2014). The combination of chitosan and bentonite as coagulant agents
dissolved air flotation. APCBEE Procedia, 10, 229 – 234.
Renault, F., Sancey, B., Badot, P.M. &Crini, G. (2009). Chitosan for
coagulation/flocculation processes – An eco-friendly approach. European
Polymer Journal, 45, 1337–1348.
Ricci, A., Olejar, K. J., Parpinello, G. P., Kilmartin, P. A., & Versari, A. (2015).
Application of fourier transform infrared (FTIR) spectroscopy in the
characterization of tannins. Applied Spectroscopy Reviews, 50(5), 407-442.
Robinson, T., McMullan, G., Marchant, R., & Nigam, P. (2001). Remediation of dyes
in textile effluent: a critical review on current treatment technologies with a
proposed alternative. Bioresource Technology, 77(3), 247-255.
Rodriguez-Lázaro, D., Cook, N., Ruggeri, F. M., Sellwood, J., Nasser, A., Nascimento,
M. S. J., & Bosch, A. (2012). Virus hazards from food, water and other
contaminated environments. FEMS microbiology reviews, 36(4), 786-814.
Rosal, R., Rodríguez, A., Perdigón-Melón, J. A., Petre, A., García-Calvo, E., Gómez,
M. J. & Fernández-Alba, A. R. (2010). Occurrence of emerging pollutants in
urban wastewater and their removal through biological treatment followed by
ozonation. Water Research, 44(2), 578-588.
Roussy, J., Van-Vooren, M., Dempsey, B. & Guibal, E. (2005). Influence of chitosan
characteristics on the coagulation and the flocculation of bentonite
suspensions. Water Research, 39, 3247-3258.
Sahu, O.P. & Chaudharij, P.K. (2013). Review on Chemical treatment of Industrial
Waste Water. Journal of Applied Science Environmental Management, 17(2),
241-257.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
169
Salomons, W., & Förstner, U. (2012). Metals in the Hydrocycle. Springer Science &
Business Media.
Sanchez-Martína, J., Gonzalez-Velascob, M. & Beltran-Herediaa, J. (2010). Surface
water treatment with tannin-based coagulants from Quebracho
(Schinopsisbalansae). Chemical Engineering Journal, 165, 851–858.
Sánchez-Román, R. M., Soares, A. A., De Matos, A. T., Sediyama, G. C., DeSouza,
O., & Mounteer, A. H. (2007). Institutional wastewater disinfection using solar
radiation for agricultural reuse. Transactions of the ASABE, 50(1), 65-71.
Santisteban, J. I., Mediavilla, R., Lopez-Pamo, E., Dabrio, C. J., Zapata, M. B. R.,
García, M. J. G., ... & Martínez-Alfaro, P. E. (2004). Loss on ignition: a
qualitative or quantitative method for organic matter and carbonate mineral
content in sediments? Journal of Paleolimnology, 32(3), 287-299.
Santos, A.F.S., Paiva, P.M.G., Teixeira, J.A.C., Brito, A. G., Coelho, L.C.B.B.
&Nogueira, R. (2012). Coagulant properties of Moringa oleifera protein
preparations: application to humic acid removal. Environmental Technology,
33(1), 69–75.
Saritha, V.,Srinivas, N. & Srikanth-Vuppala, N. V. (2017). Analysis and optimization
of coagulation and flocculation process. Applied Water Science, 7(1), 451-460.
Satyawali, Y., & Balakrishnan, M. (2008). Wastewater treatment in molasses-based
alcohol distilleries for COD and color removal: a review. Journal of
Environmental Management, 86(3), 481-497.
Saxena, K., Brighu, U., & Choudhary, A. (2018). Parameters affecting enhanced
coagulation: a review. Environmental Technology Reviews, 7(1), 156-176.
Scatena, L. F., Brown, M. G., & Richmond, G. L. (2001). Water at hydrophobic
surfaces: weak hydrogen bonding and strong orientation
effects. Science, 292(5518), 908-912.
Sciban, M.B, Klasnja, M. & Stojimirovic, J.L. (2005). Investigation of coagulation
activity of natural coagulants from seeds of different leguminose species. Acta
Periodica Technologica, 36, 81–90.
Seligra, P. G., Jaramillo, C. M., Famá, L., & Goyanes, S. (2016). Biodegradable and
non-retrogradable eco-films based on starch–glycerol with citric acid as
crosslinking agent. Carbohydrate Polymers, 138, 66-74.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
170
Shafad, M.R.,Ahamad, I.S., Idris, A. & Zainal Abidin, Z. (2013). A Preliminary Study
on Dragon Fruit Foliage as Natural Coagulant for Water treatment.
International Journal of Engineering Research & Technology, 2(12), 1057-
1063
Shak, K. P. Y., & Wu, T. Y. (2014). Coagulation–flocculation treatment of high-
strength agro-industrial wastewater using natural Cassia obtusifolia seed gum:
treatment efficiencies and flocs characterization. Chemical Engineering
Journal, 256, 293-305.
Shanavas, S., Padmaja, G., Moorthy, S. N., Sajeev, M. S., & Sheriff, J. T. (2011).
Process optimization for bioethanol production from cassava starch using
novel eco-friendly enzymes. Biomass and Bioenergy, 35(2), 901-909.
Shamsnejati, S., Chaibakhsh, N.,Pendashteh, A.R. & Hayeripour, S. (2015).
Mucilaginous seed of Ocimum basilicum as a natural coagulant for textile
wastewater treatment. Industrial Crops and Products, 69, 40–47.
Shaoqi, L. J. W. Y. Z. (2010). Application of response surface methodology (RSM) to
optimize coagulation treatment of cassava starch wastewater [J]. Chinese
Journal of Environmental Engineering, 7, 023.
Sharma, B. R., Dhuldhoya, N. C., & Merchant, U. C. (2006). Flocculants—an
ecofriendly approach. Journal of Polymers and the Environment, 14(2), 195-
202.
Shi, B. Y. G. H. Li, D. S. Wang and H. X. Tang, Separation of Al13 from
polyaluminium chloride by sulfate precipitation and nitrate metathesis, Sep.
Purif. Technol., 2007, 54, 88–95.
Shittu, B. O. (2004). POTENTIAL OF Calotropis procera LEAVES FOR
WASTEWATER TREATMENT. College of Natural Sciences Proceedings,
97-108.
Smidt, E. and M. Schwanninger. 2005. “Characterization of Waste Materials Using
FTIR Spectroscopy: Process Monitoring and Quality Assessment.”
Spectroscopy Letters, 38(3), 247–70.
Singh, N., Singh, J., Kaur, L., Sodhi, N. S., & Gill, B. S. (2003). Morphological,
thermal and rheological properties of starches from different botanical
sources. Food Chemistry, 81(2), 219-231.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
171
Singh, R., Gautam, N., Mishra, A., & Gupta, R. (2011). Heavy metals and living
systems: An overview. Indian Journal of Pharmacology, 43(3), 246.
Singh, R. P., Karmakar, G. P., Rath, S. K., Karmakar, N. C., Pandey, S. R., Tripathy,
T., ... & Lan, N. T. (2000). Biodegradable drag reducing agents and flocculants
based on polysaccharides: materials and applications. Polymer Engineering &
Science, 40(1), 46-60.
Sillanpää, M., Ncibi, M. C., Matilainen, A., & Vepsäläinen, M. (2018). Removal of
natural organic matter in drinking water treatment by coagulation: a
comprehensive review. Chemosphere, 190, 54-71.
Song, J. Y., Kwon, J. Y., Choi, J., Kim, Y. C., & Shin, M. (2006). Pasting Properties
of Non‐waxy Rice Starch‐Hydrocolloid Mixtures. Starch‐Stärke, 58(5), 223-
230.
Spellman, F. R., & Drinan, J. E. (2012). The drinking water handbook. CRC Press.
Spellman, F. R., & Drinan, J. E. (2014). Wastewater Stabilization Ponds. CRC Press.
Spellman, F. R. (2013). Water & Wastewater Infrastructure: Energy Efficiency and
Sustainability. CRC Press.
Sriroth, K., Chollakup, R., Chotineeranat, S., Piyachomkwan, K., & Oates, C. G.
(2000). Processing of cassava waste for improved biomass
utilization. Bioresource Technology, 71(1), 63-69.
Srividya, K., & Mohanty, K. (2009). Biosorption of hexavalent chromium from
aqueous solutions by Catla catla scales: equilibrium and kinetics
studies. Chemical Engineering Journal, 155(3), 666-673.
Stanjek, H., & Häusler, W. (2004). Basics of X-ray Diffraction. Hyperfine
Interactions, 154(1-4), 107-119.
Stechemesser, H., & Dobiáš, B. (2005). Coagulation and flocculation. Taylor &
Francis.
Stubbart, John M., William C. Lauer, Timothy J. McCandless, and Paul Olson. 2006.
“AWWA Wastewater Operator Field Guide.” 262–95 in Wastewater
Treatment.
Subramonian, W., Wu, T. Y., & Chai, S. P. (2014). A comprehensive study on
coagulant performance and floc characterization of natural Cassia obtusifolia
seed gum in the treatment of raw pulp and paper mill effluent. Industrial Crops
and Products, 61, 317-324.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
172
Sudaryanto, Y., Hartono, S. B., Irawaty, W., Hindarso, H., & Ismadji, S. (2006). High
surface area activated carbon prepared from cassava peel by chemical
activation. Bioresource Technology, 97(5), 734-739.
Sun, Y., Chen, Z., Wu, G., Wu, Q., Zhang, F., Niu, Z., & Hu, H. Y. (2016).
Characteristics of water quality of institutional wastewater treatment plants in
China: implications for resources utilization and management. Journal of
Cleaner Production, 131, 1-9.
Suryanarayana, C., & Norton, M. G. (2013). X-ray diffraction: a practical approach.
Springer Science & Business Media.
Suwaiba, N. (2010). Public sewage wastewater treatment by using electrocoagulation
process (Ph.D thesis, University Malaysia Pahang).
Salehizadeh, H., Vossoughi, M., & Alemzadeh, I. (2000). Some investigations on
flocculant producing bacteria. Biochemical engineering journal, 5(1), 39-44.
Sobsey, M. D., Water, S., & World Health Organization. (2002). Managing water in
the home: accelerated health gains from improved water supply.
Sornyotha, S., Kyu, K. L., & Ratanakhanokchai, K. (2007). Purification and detection
of linamarin from cassava root cortex by high performance liquid
chromatography. Food chemistry, 104(4), 1750-1754.
Srinivas, R., Santhosh, J. & Latha, R. (2011). The effectiveness of herbs in community
water treatment. International Research Journal of Biochemistry and
Bioinformatics, 1(11), 297 – 303.
Srinivas, T. (2008). Environmental biotechnology: New Age International.
Suhartini, S., Hidayat, N., & Rosaliana, E. (2013). Influence of powdered Moringa
oleifera seeds and natural filter media on the characteristics of tapioca starch
wastewater. International Journal of Recycling of Organic Waste in
Agriculture, 2(1), 12.
Syazwani. Mohd-Asharuddin, Othman, N., Zin, N. S. M., & Tajarudin, H. A. (2017).
A Chemical and Morphological Study of Cassava Peel: A Potential Waste as
Coagulant Aid. In MATEC Web of Conferences (103,p. 06012). EDP Sciences.
Tan, S. L. (2015). Cassava–silently, the tuber fills.
Teh, C. Y., Budiman, P. M., Shak, K. P. Y., & Wu, T. Y. (2016). Recent advancement
of coagulation–flocculation and its application in wastewater
treatment. Industrial & Engineering Chemistry Research, 55(16), 4363-4389.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
173
Tepe, Y., & Çebi, A. (2017). Acrylamide in Environmental Water: A Review on
Sources, Exposure, and Public Health Risks. Exposure and Health, Vol: 1-10.
Terauchi, M. (2004). U.S. Patent No. 6,710,341. Washington, DC: U.S. Patent and
Trademark Office.
Tester, R. F., Karkalas, J., & Qi, X. (2004). Starch—composition, fine structure and
architecture. Journal of Cereal Science, 39(2), 151-165.
Teyssier, A., Schmitt, J. M., Chiriac, R., & Goutaudier, C. (2016). Contribution to the
quaternary system H 2 O–Al 3+, Ca 2+//O 2−, SO42−: Solid–liquid equilibria
in the ternary systems Al 2 (SO 4) 3–CaSO 4–H 2 O and Al 2 O 3–SO 3–H 2
O at 25° C. Fluid Phase Equilibria, 409, 388-398.
Theodoro, J.D.P., Lenz, G.F., Zara, R.F. & Bergamasco, R. (2013). Coagulants and
Natural Polymers: Perspectives for the Treatment of Water. Plastic and
Polymer Technology, 2(3), 55 – 62.
Thi, N. B. D., Kumar, G., & Lin, C. Y. (2015). An overview of food waste management
in developing countries: current status and future perspective. Journal of
Environmental Management, 157, 220-229.
Tivana, L.D. (2002). Cassava Processing: Safety and Protein Fortification. LTH Lund
University, Sweden. PhD. Thesis.
Tomasik, P., & Schilling, C. H. (2004). Chemical modification of starch. Advances in
Carbohydrate Chemistry and Biochemistry, 59(59), 175-403.
Tomljenovic, L. (2011). Aluminium and Alzheimer's disease: after a century of
controversy, is there a plausible link? Journal of Alzheimer's Disease, 23(4),
567-598.
Toze, S. (2006). Reuse of effluent water—benefits and risks. Agricultural Water
Management, 80(1), 147-159.
Toze, S. (2006). Water reuse and health risks—real vs.
perceived. Desalination, 187(1-3), 41-51.
Tripathy, T., & De, B. R. (2006). Flocculation: a new way to treat the waste water.
Tung, T. Q., Miyata, N., & Iwahori, K. (2002). Cassava starch processing wastes:
Potential pollution and role of Microorganisms. Japanese Journal of Water
Treatment Biology, 38(3), 117-135.
Ubalua, A. O. (2007). Cassava wastes: treatment options and value addition
alternatives. African Journal of Biotechnology, 6(18), 2065-2073.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
174
UNESCAP (United Nations Economic and Social Commission for Asia and the
Pacific), 2013. Statistical Yearbook for Asia and the Pacific.
UNESCO (United Nations Educational, Scientific and Cultural Organization), 2015.
Water for a sustainable world. The United Nations World Water Development
Report 2015.
Uthumporn, U., Zaidul, I. S., & Karim, A. A. (2010). Hydrolysis of granular starch at
sub-gelatinization temperature using a mixture of amylolytic enzymes. Food
and Bioproducts Processing, 88(1), 47-54.
Vadasarukkai, Y. S. (2016). Investigation of the Mixing Energy Consumption
Affecting Coagulation and Floc Aggregation (Doctoral dissertation).
Van der Gucht, J., Spruijt, E., Lemmers, M., & Stuart, M. A. C. (2011). Polyelectrolyte
complexes: bulk phases and colloidal systems. Journal of Colloid and
Interface Science, 361(2), 407-422.
Van Der Maarel, M. J., Van Der Veen, B., Uitdehaag, J. C., Leemhuis, H., &
Dijkhuizen, L. (2002). Properties and applications of starch-converting
enzymes of the α-amylase family. Journal of Biotechnology, 94(2), 137-155.
Ventura, M., Canchaya, C., Tauch, A., Chandra, G., Fitzgerald., G.F., Chater, K.F. &
Van Sinderen, (2007). Genomics of bacteria: tracing the evolutionary history
of an ancient phylum. Microbiology and Molecular Biology,71(3) 495-548.
Vincent, J. (Ed.). (2011). The nutritional biochemistry of chromium (III). Elsevier.
Von Sperling, M., & de Lemos Chernicharo, C. A. (2017). Biological Wastewater
Treatment in Warm Climate Regions (p. 857). IWA publishing.
Von Sperling, M. (2017). Wastewater characteristics, treatment and disposal. IWA
Wadie, A. H. (2013). A Modeling Approach Towards Improving Compliance of
Treated Water Quality to Reduce Manpower and Chemicals. Journal of
Kerbala University, 11(2), 118-128.
Wang, D., Tang, H., & Gregory, J. (2002). Relative importance of charge
neutralization and precipitation on coagulation of kaolin with PACl: effect of
sulfate ion. Environmental Science & Technology, 36(8), 1815-1820.
Wang, R., Gao, S., Yang, Z., Li, Y., Chen, W., Wu, B., & Wu, W. (2018). Engineered
and Laser‐Processed Chitosan Biopolymers for Sustainable and Biodegradable
Triboelectric Power Generation. Advanced Materials, 30(11), 1706267.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
175
Wang, L. K., Hung, Y. T., Lo, H. H., & Yapijakis, C. (Eds.). (2004). Handbook of
Industrial and Hazardous Wastes Treatment. CRC Press.
Watanabe, Y. (2017). Flocculation and me. Water research, 114, 88-103.
Wegmann, M., Michen, B., Luxbacher, T., Fritsch, J., & Graule, T. (2008).
Modification of ceramic microfilters with colloidal zirconia to promote the
adsorption of viruses from water. Water Research, 42(6-7), 1726-1734.
Wilson, R., & Fujioka, R. (1995). Development of a method to selectively isolate
pathogenic Leptospira from environmental samples. Water Science and
Technology, 31(5-6), 275-282.
Wu.Z , P. Y. Zhang, G. M. Zeng, M. Zhang and J. H. Jiang, 2012, Humic Acid
Removal from Water with Polyaluminium Coagulants: Effect of Sulfate on
Aluminium Polymerization, J. Environ. Eng, 3, 293–298.
Wu, Y., Sasaki, T., Irie, S., & Sakurai, K. (2008). A novel biomass-ionic liquid
platform for the utilization of native chitin. Polymer, 49(9), 2321-2327.
Yahaya, G. (2018). Anti-Cancer Potential of Ethanolic and Water Leaves Extracts of
Annona Muricata (Graviola), (Ph.D thesis, JKUAT-PAUSTI).
Yin, Q., Tan, J. M., Besson, C., Geletii, Y. V., Musaev, D. G., Kuznetsov, A. E., &
Hill, C. L. (2010). A fast-soluble carbon-free molecular water oxidation
catalyst based on abundant metals. Science, 328(5976), 342-345.
Yin, Y., Allen, H. E., Li, Y., Huang, C. P., & Sanders, P. F. (1996). Adsorption of
mercury (II) by soil: effects of pH, chloride, and organic matter. Journal of
Environmental Quality, 25(4), 837-844.
Zainol, N. A., Aziz, H. A., Yusoff, M. S., & Umar, M. (2011). The use of
polyaluminium chloride for the treatment of landfill leachate via coagulation
and flocculation processes. Research Journal of Chemical Sciences,(3), 34-39.
Zemmouri, H., Drouiche, M., Sayeh, A., Lounici, H., & Mameri, N. (2012).
Coagulation flocculation test of Keddara's water dam using chitosan and
sulfate aluminium. Procedia Engineering, 33, 254-260.
Zhang, J. H., Zhang, Y., Zhou, J., Liu, Z. H., Zhang, H. L., & Tian, Q. (2017). Tourism
water footprint: an empirical analysis of Mount Huangshan. Asia Pacific
Journal of Tourism Research, 22(10), 1083-1098.
PTTAPERP
USTAKAAN TUNKU T
UN AMINAH
176
Zhang, A., Zhang, Z., Shi, F., Ding, J., Xiao, C., Zhuang, X., & Chen, X. (2013).
Disulfide crosslinked PEGylated starch micelles as efficient intracellular drug
delivery platforms. Soft Matter, 9(7), 2224-2233.
Zhao, S.,Gao, B., Li, X. & Dong, M. (2012). Influence of using Enteromorpha extract
as a coagulant aid on coagulation behavior and floc characteristics of
traditional coagulant in Yellow River water treatment. Chemical Engineering
Journal, 200, 569–5761.
Zhao, Y. X., Gao, B. Y., Wang, Y., Shon, H. K., Bo, X. W., & Yue, Q. Y. (2012).
Coagulation performance and floc characteristics with polyaluminium chloride
using sodium alginate as coagulant aid: a preliminary assessment. Chemical
Engineering Journal, 183, 387-394.
Zheng, H., Zhu, G., Jiang, S., Tshukudu, T., Xiang, X., Zhang, P., & He, Q. (2011).
Investigations of coagulation–flocculation process by performance
optimization, model prediction and fractal structure of
flocs. Desalination, 269(1), 148-156.
Zin, N. S. M., & Zulkapli, Z. A. (2017). Application of Dual Coagulant (Alum+
Barley) in Removing Colour from Leachate. In MATEC Web of
Conferences (Vol. 103, p. 06002). EDP Sciences.
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