Digelis™Turbo

REDUCE THE VOLUME OF THE SLUDGE

BY 50% WITH BOOSTING DIGESTION

BIOSOLIDSENHANCED DIGESTION OF BIOLOGICAL OR

MIXED SLUDGE

P-PPT-007-EN-1107

BIOSOLIDESBIOSOLIDS

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CONTENTS

Digelis™

Turbo

� Degrémont Digestion Line

� Digelis™ Turbo Workshop

� Digelis™ Turbo and Post-treatments

� General Sludge Anaerobic Digestion

� Biological Sludge

� Functioning of the Digestion Stage

� The Specificity of Digelis™ Turbo: Thermal Hydrolysis

� Cambi Partnership and its References

� Digelis™ Turbo Main Advantages

� The first Project: Mapocho, CHILE

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DEGRÉMONT DIGESTION LINE

Digelis™ RANGE

DIGESTION TYPE PRODUCT NAME DESCRIPTION

Conventional digestion Digelis

Conventional digestion Digelis Smart

Enhanced digestion Digelis Thermo

Enhanced digestion Digelis Duo

Boosted digestion Digelis Turbo

Digelis™

Turbo

Mesophilic digestion 37°C

Mesophilic digestion 37°C+ integrated biogas storage

Thermophilic digestion 55°C

Mesophilic digestion 37°C+ Thermophilic digestion 55°C

Thermal Hydrolysis + Mesophilic digestion 37°C

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Digelis™Turbo WORKSHOP

Digelis™ Turbo

Water

Water

WaterLiquid + Gas

Steam

Thermal Hydolysis (THP)

Centrates

Gas condensation

Digestion

Boiler

Sludge disposal

HT reactorPulper Flash tankSludge

Sludge

cooling

Post

dewatering

Pre-dewatering

and sludge

storage

By pass

Biogas

storage

Biogas

uses

Biogas

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Digelis TurboAND POST-TREATMENTS

Digelis™ Turbo reduces the investment and operating costs on the downstream technologies, particularly in the case of thermal drying

Dried sludge

The thermal hydrolysis step in the Digelis™ Turbo process sanitizes the sludge and improvesits dewatering capability

Incineration Drying Storage

Autogenous combustible sludge

Digelis™ Turbo increasesdewatering performance to up to 30 to 40% dryness

Avoid the input of fossilfuel energy for combustion

Mineral recovery Energy recovery Organic matter recovery

30% dryness and very good heap ability

50% reduction in the mass of sludge after dewatering

High stabilisation and sanitation

Usable product

RENEWABLE ENERGYCogeneration

With the Digelis™ Turbo process, the efficiency of volatile solids elimination can be improved by 50% and the production of biogas increased proportionally to the elimination of volatile solids.

50% increase in the production of biogas whichcan be converted into electricity and heat

Energy recovery

BIOGAS FROM DIGESTION

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GENERAL SLUDGE ANAEROBIC DIGESTIONOperating conditions

� Temperature 35 - 37 °C� Retention time 16 - 22 days� Load 1,8 - 2,2 kg VS / m3/d� pH 7 - 7,5� VFA / Alkalinity < 0,15

Generally obtained results : VS removal :VS removal :VS removal :VS removal :

25-35 % Extended aeration sludge

40-55% Mixed sludge

Biogas production : Biogas production : Biogas production : Biogas production : from 0,9 to 1,1 Nm3 / kg VS removal

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BIOLOGICAL SLUDGE

•Biological sludge is composed of various fractions and contains a high proportion of dead bacterial cells that took part in the purification

•These cells are agglomerated in the form of biological floc; the cohesion of this floc is due to the action of exopolymers

•The cellular content is thus doubly protected from the action ofthe digestion for classic mesophilic retention times on the order of 20 days:

ColonCell

Biological sludge microfloc

Digelis™

Turbo

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ACTION OF THERMAL HYDROLYSIS ON BIOLOGICAL SLUDGE

Various companies have been seeking solutions to attack this double protection to allow access to the intra-cellular contents for digestion

• These solutions all involve pre-treatment of the sludge, before it is admitted for digestion, which destroys the flocs and the cell walls, leading to the lysis of the cellular content of the bacteria

• Digelis™ Turbo includes a thermal pre-treatment that hydrolyzes the sludge and accelerates its degradation in the downstream digester

Disintegration of a colony of bacteria due to stress –x200 enlargement

Digelis™

Turbo

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FUNCTIONING OF THE DIGESTION STAGE

Parameters Digelis Turbo Digelis (37°C)

Retention time 20 days 20 days

Volume of the digester 0.5 1

DS Concentration 9 – 12% 4 – 6%

VS Load >5 kg/m3/day 1.8 – 2.2 kg/m3/day

pH 7.5-8 7 - 7.5

Foaming None Possible presence of Nocardia, Microthrix

Digelis™

Turbo

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THE SPECIFICITY OF Digelis Turbo: THERMAL HYDROLYSIS PROCESS

Thermal hydrolysis disintegrates the cellular structure of bacteria and solubilizes exopolymers to yield an easily digestible product.

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CAMBI, A PARTNER WITH MORE THAN 10 YEARS OF EXPERIENCE

Customer/projectDesign capacity

(TDS/year)THP

reactorsTYPE Completed

HIAS (1) Ham ar Norway 3 600 tonnes 1 W W TP 1996Tham es W ater (2) Chertsey UK 9 600 tonnes 2 W W TP 1999Borregaard Industries Sarspborg Norway 4 000 tonnes 1 PAPER 2000The Municipality of Næstved* Næstved Denm ark 1 600 tonnes 1 W W TP* 2000Nigg Bay Aberdeen UK 16 500 tonnes 4 W W TP 2001"Mjøsanlegget", Biowaste Plant Lilleham m er Norway 4 600 tonnes 2 OFMSW 2001Ringsend Sewage Treatm ent W orks Dublin Ireland 36 000 tonnes 8 W W TP 2002The Municipality of Fredericia Fredericia Denm ark 8 000 tonnes 2 W W TP 2002Kobelco Eco-Solutions Niigata Japan 1 200 tonnes 1 W W TP 2002Spolka W odna Kapusciska Bydgoszcz Poland 8 000 tonnes 2 W W TP 2005Tham es W ater Chertsey UK Included in (2) 0 Operations 2005 - 2012HIAS, therm ophilic digester Ham ar Norway Included in (1) 0 New digester 2005Oxley Creek Brisbane Australia 12 900 tonnes 3 W W TP 2007Bruxelles Nord Bruxelles Belgium 20 000 tonnes 5 W W TP 2007Am perverband, Cam bi THP-C* Geiselbullach Germ any 2 000 tonnes 1 W W TP 2007HIAS-Upgrade Ham ar Norway 3 600 tonnes 1 W W TP 2007Cotton Valley (Anglian W ater) Milton Keynes UK 20 000 tonnes 4 W W TP 2008Ecopro, m ulti-waste** plant Verdal Norway 8 000 tonnes 2 OFMSW ** 2008W hitlingham W W TW (Anglian W ater) Norwich UK 19 000 tonnes 4 W W TP 2008Nigg Bay, upgrade Aberdeen UK 4 000 tonnes 0 W W TP 2008Biovakka Oy Åbo/Turku Finland 14 000 tonnes 3 W W TP 2008

Ordered Plants / Under design/construction Bran Sands (Aker-Kværner/NW L) Tees Valley UK 37 000 tonnes 8 W W TP 2009Jumeirah Golf Estates / Degremont Dubai UAE 25 000 tonnes 6 WW TP 2009Vilniaus Vandenys/ Vilnius W ater Co. Vilnius Lithuania 23 000 tonnes 5 W W TP 2009Ringsend STW (New THP line, Dublin Ireland 20 000 tonnes 4 W W TP 2010TDS = Total dry solids (1000 kg = 1 tonne) Total: 301 600 tonnes 70W W TP = sludge from m uncipal wastewater treatment plant, *biological sludge/W AS only (Næstved is extended aeration plant)

PAPER = bio-sludge/waste activated sludge from paper factory wastewater treatm ent plant

OFMSW = Organic Fraction of Municipal Solid W aste, **m ix of sludge, OFMSW , and anim al by-products (wet: 30,000 - 40,000 t/y)

Location

(*) organic fraction of municipal solid waste

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SOME REFERENCES OF OUR PARTNER CAMBI

KAPUSCISKA, POLAND• Year: 2005

• Capacity: 8 000 TDS/year

• Number of reactors: 2

• Sludge disposal: agriculture

CHERSTEY, GREAT BRITAIN• Year: 1999

• Capacity: 9,600 TDS/year

• Number of reactors: 2

• Sludge disposal: agriculture

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BRISBANE (OXLEY CREEK), AUSTRALIA

• Year: 2007

• Capacity: 12,900 TDS/year

• Number of reactors: 3

• Sludge disposal: agriculture

MILTON KEYNES (COTTON VALLEY), GREAT BRITAIN

• Year: 2007

• Capacity: 17,000 TDS/year

• Number of reactors: 4

• Sludge disposal: agriculture

SOME REFERENCES OF OUR PARTNER CAMBI

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DOUBLES THE CAPACITY OF DIGESTERSREDUCES THE CAPACITY NEEDED FOR THE FINAL DRYING STEP

Digelis™

Turbo Digelis™ Turbo:

Digelis TurboMAIN ADVANTAGES (1/2)

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REDUCES THE COST OF SLUDGE REMOVAL

Digelis TurboMAIN ADVANTAGES (2/2)

Production of dewatered sludge dehydrated Production of dewatered sludge dehydrated Production of dewatered sludge dehydrated Production of dewatered sludge dehydrated

for 400 000 PE in wet tons per dayfor 400 000 PE in wet tons per dayfor 400 000 PE in wet tons per dayfor 400 000 PE in wet tons per day

Biological sludge

without Digelis

Turbo 24% DS

�

100 T/d

Biological

sludge with

Digelis Turbo

30% DS

�

50 T/d

INCREASES THE PRODUTION OF USABLE BIOGAS

Digelis™

TurboDigelis™Turbo::::

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SOME Digelis Turbo REFERENCES

Spain

Chile

CountryInstallation Capacity Start-up Date Use of Biogas

Mapocho(cf. the following slides)

3,500,000 PE 2012 Electricity

Arona Adeje(Canary Islands) 420,000 PE 2013 Electricity

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THE FIRST Digelis TurboPROJECT: MAPOCHO (Santiago), CHILE (1/2)

CONTRACT: • A wastewater treatment plant

• 8.8 m3/s (760,000 m3/day or 3.5 million p.e.)

• A DB contract which will be run by a subsidiary of the Suez Environnement Group (Aguas Andinas)

THE SLUDGE LINE:• Digestion is used to stabilize the sludge before it is dewatered and reused in agriculture

• Biological sludge is treated using the Digelis™Turbo which produces an increased amount of biogas.

• The biogas produced is used for cogeneration which produces both heat (used to meetDigelis™ Turbo requirements) and electricity.

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The study has revealed a major plus with regard to the sustainable development of the DigelisTurbo solution combined with cogeneration involving biological sludge

SOLUTION WITHOUT Digelis Turbo

SOLUTION WITHDigelis Turbo

DifferenceDigelis Turbo

Classic digestion

T DS per year Biological Sludge 49,580 49,580 0

Amount of biological sludge dewatered expressed as m3/year

131,500 97,400 - 26%

Associated production of electrical power expressed as GWh/year

37 43 + 10%

Annual emission of CO2 avoided 4,600 tonnes

THE FIRST Digelis Turbo PROJECT: MAPOCHO (Santiago), CHILE (2/2)

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Digelis Turbo : IN A FEW POINTS

•An opportunity for reduction of fossil energy consumption inside the plant- Enhance the production of green energy with biogas

•An opportunity to make reliable downstream sludge disposal/treatment line- Strong / High stabilization and sanitization of sludge- Solid matter reduction

•An opportunity for optimization of the plant design- Increasing of digesters capacity- Reduction of equipment size on the downstream technologies (thermal drying, …)

Digelis™

Turbo