solidwastemanagementgroup
TRANSCRIPT
Members of Group Registration Number
Norfarhana Ain Binti Zainal Ariff
01DKA10F2036
Nurul Husna Binti Mohamed Roshidi
01DKA10F2043
Siti Rashidah Binti Abd Razi 01DKA10F2070
CC 604 : Environment Pollution & Control
Chapter 5 : Solid Waste Management + Case Study
Class : DKA 5E
What Is Solid Waste
The term solid waste means :Material such as household garbage, food wastes, yard wastes, and
demolition or construction
debris
Solid waste are wastes that are
not liquid or gaseous
Solid wastes are all the
discarded solid materials from
municipal, industrial, and
agricultural activities
Objective Of Solid Waste Management
The objective of solid wastes management to control, collect, process, dispose of solid wastes in
an economical way consistent with the public
health protection
Definition Of Municipal Solid Waste (MSW)
Municipal solid waste (MSW) is a waste type consisting of everyday items that are discarded by the public
All wastes, resulting from population, residential and
non residential buildings, as well as transport vehicles
Municipal solid waste (MSW) commonly
known as: trash or garbagerefuse or rubbish
Sources Of MSW
Residential
Industrial
Commercial
InstitutionalConstruction/Demolition
Municipal ServicesProcess
(Manufacturing)Agriculture
Type Of MSW
Industrial waste Rubbi
sh
Demolition
Wastes
Construction wasteGarbage
Dead animal
s
Sewage treatment
residue
It is estimated that solid waste generated in small, medium and large cities and towns is about 0.1 kg, 0.3 – 0.4 kg and 0.5 kg per capita per day respectively
Total municipal solid waste (MSW) collected in the country increased every year
The average per capita generation has increased from 0.67 kg/person/day in 2001 to 0.8 kg/person/day in 2005
In 2008 it is reported increase at 60 – 70 %.
Current MSW generation has reached 1.3 kg/person/day
Quantity Of Municipal Solid Waste (MSW) In
Malaysia
Element Of MSW Management
• Waste generation• Waste handling, sorting,
storage, and processing at the source
• Collection• Separation, processing and
transformation of solid wastes
• Transfer and transport• Energy Generation• Disposal
Strategies for Effective and
Environmental Friendly
• Minimize waste generation• Maximize waste recycling and
reuse• Educate people on different
ways of handling waste• Systematic solid waste
management
Characteristic of MSW
Physical Characteristi
c
Moisture content : increase the weight of
solid waste , so the cost of collection & transportation will
increasing
Density : used to assess volume of
transportation vehicle & size of the disposal
facility
Chemical Characteristi
c
is essential in understanding the
behavior of waste all through the waste
management system and also in selecting and determining the
efficiency of any treatment process
Composition
Components
Activities in which materials are identified as no longer being of value
and are either thrown out or gathered together for disposal
The primary steps are generation, collection, sorting and separation, transfer, and disposal
municipal solid waste industry has four components: recycling, composting, landfill, and waste-to-energy via incineration
In countries which have a developed recycling culture, the waste stream consists mainly of intractable wastes such as plastic film, and un-recyclable packaging
The composition of municipal waste varies greatly from country to country and changes significantly with time
Waste Generation
Waste generation include activities in which material identified as no longer being of value and are either thrown away or gathered together for disposal.
Collection
Elements of collection, includes not only the gathering of solid waste and recyclable material, but also the transport of these materials after collection, to the location where the collection vehicle is emptied.
Factor Influence Generation of MSW
• Socio-economic background:– The buying power– Income level
• Cultural background• Locality:– Urban– Rural setting
Handling and Separating Municipal Solid Waste
• Waste handling and separation involves activities associated with waste management until the waste is placed in storage containers for collection.
• Handling also include the movement of loaded containers to the point of collection. Separating different types of waste components is an important step in the handling and storage of solid waste at the source.
Collection Activities
• The most common collection services are curb/alley, set out/set back pickup, and backyard pickup.
• The collection services provided to large apartment buildings, residential complexes, commercial and industrial activities typically in centered around the use of large movable and stationary containers and large stationary compactors.
Curb or Alley Pickup
• The quickest and most economical point of collection.
• Using standard container that has been design by city council.
Set-out, Set-back Pickup
• Collectors have to enter property.• Set out crew carries full containers from
resident storage location to curb/alley before collection vehicle arrives.
• Set back crew return the container to storage area.
Backyard Pickup
• Usually accomplish by the use of tote barrels.• The collector enter the resident’s property,
dumps the container into a tote barrel, carries it to the trucks and dumps it.
Transfer and Transport
• Transfer and transport refers to the facilities used to transfer of wastes from one location to another. - Small collection vehicles are transferred to larger
vehicles that are used to transport the waste over extended distances to disposal sites.
Understand The Various Kinds of MSW Disposal Methods Such as Land Filling, Incineration and
Organic MSW Composting
Sanitary Land Filling The controlled disposal of solid
waste on the upper layer of the earth mantle in a manner the environmental hazards is minimized.
Important technical aspects in the implementation of sanitary landfills include: Site selection. Land filling methods and
operation. Occurrence of gasses and
leachate. Movement and control of
gases and leachate.
Incineration•The process of burning waste in large furnaces at high temperature is know as incineration.
•It is used to dispose of solid liquid and gaseous waste .Incineration facilities generally do not require as much area as landfills.
•At the end of the process all that is left behind is ash.
Composting• Compost Is the product resulting from the
controlled biological decomposition of organic material.
• The starting material for composting are commonly referred to a feed stocks
Explain the environmental, social , economical, and political information
available for municipal solid waste (MSW)
a)The disposal site shall be capable of being characterized , modeled, analyzed and monitored.
b)The disposal site shall be generally well drained and free of areas of flooding or frequent bonding.
c)Depend on the type of accommodation, terrace houses , flats , commercial area or factories
d)Collection service route
Effect of incineration sanitary landfill and composting to the
environment• Release hundreds of toxic chemicals into the
atmosphere;• Disposal of the ash (The toxic substance are
more concentrated in the ash);• Highly related to the economic condition;• A classic short-term solution potentially useful
(recyclable or compostable) (it destroys material by turning it into toxic ash);
Know 4R’s Concept and Justify Aspects and Issues related to recycling and composting of municipal
solid waste (MSW)
Describe waste reduction ,reuse, recovery and recycling concepts.
• Method of waste reduction, waste reuse, and recycling are the preferred options when managing waste.
• 4R’s stand for:ReductionReuseRecoveryRecycling
Reduction• By reducing, consumer and industry can save natural resources
and reduce waste management costs.
Reuse• Large production companies such as Electronic, appliances and
gadgets, should establish the collection centre, where damaged items can be repaired and reuse.
Recovery• Energy or material can be recovered from waste that are not
reused or recycled
Recycling• Recycling turns materials that would otherwise become waste
into valuable resources
Identify the impact of reuse /recycle /reduction on landfill design and operation.
• saves natural resources.• reduces toxicity of waste.• reduce cost.• helps sustain the environment for
future generations.• reduces the need for land filling and
incineration.
Explain on conventional and innovative waste utilization
/recycling technologies.1.Conventional
Two types of composting process:1. Aerobic composting2. Anaerobic composting
Factor that influence Aerobic composting process :i. Particle size 25 to 75mm for the optimum chemical reaction to occur ii. The ratio of C:N (Carbon to nitrogen ratio)iii. Moisture content should be in the range 50-60%iv. Temperature the optimum temperature for the composting process is 50 to 70˚C v. PH control the optimum for micro activity is 6.5-7.5 to prevent loss of nitrogen as ammonia (NH₃)
gas , pH should not exceed 8.5vi. Mixing process to prevent dehydration on the surface of the compostvii. Air requirements
2.Innovativeviii. Will improve public health and safely achieveix. Non-toxic gases, which are created, are stored in special containers (gas cylinders) and used as fuel
and energy creators. x. Method takes place in a close system, without releasing ashes, waste remnants, dusts and toxic
gases into environment.
ACTION RESIDENTS
IN THE AREA
cause the occupants had to
take the easy way to remove the debris and solid waste in open areas, including the
roadside and at major crossroads
on the road
remove debris and solid waste
in open area away from the
houseThis Is because
garbage and solid waste loaded in
the barrel, in front of their
homes are full
THE EFFECTS
animals eat like cats and dogs, garbage lifted late in the barrel at the front door of his house will be wormy and rotten and then overflowing into the road shoulder.
not lasting the nauseating smell that permeates the house, every time you open the door until cause of the health and appetite.
experiencing severe odor pollution as wormy and rotting garbage in the trash lifted by garbage trucks.
Waste water overflowing from the truck in the road surface.
Affected neighborhoods wedding
contaminate views
raises displeasure
Impacts of solid waste
on environmen
t
Waste breaks down in landfills to form methane, a potent
greenhouse gas
Change in climate and destruction of ozone layer due to
waste biodegradable
Garbage disposal, due to waste
pollutions, illegal dumping,
leaching : is a process by which solid waste enter soil and ground
water and contaminating
them
Impacts of solid
waste on health
Nausea and vomiting
Low birth weight
Cancer
Chemical poisoning through
chemical inhalation
Increase in hospitalization of diabetic residents living near hazard
waste sites
Mercury toxicity from eating fish
with high levels of mercury
Population growth
Increase in industrials
manufacturing
Urbanization
Causes of increase in solid waste
Preventive measures
Systematic solid waste management
Involving public in plans for waste treatment and disposal
Educate people on different ways of handling waste
Household level of proper segregation of waste, recycling and
reuseProcess and product substitution
example use paper bag instead of plastic bags
garbage collection according to the schedule set
References
Internet1. Wikipedia. Municipal Solid Waste. September
19, 2013, from http://en.wikipedia.org/wiki/Municipal_solid_waste
2. Slide Share. Solid Waste. September 18, 2013, by Wali Memon, from http://www.slideshare.net/walimemon/games-solid-waste-can-play-with-enviorment
3. Silde Share. Minicipal Solid Waste. September 19, 2013, By Muhammad Fahad Ansar , http://www.slideshare.net/fahadansari131/municipal-solid-waste-by-muhammad-fahad-ansari-12ieem14-13324528