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 Integrated solid waste management (ISWM) is a comprehesive
waste collection, prevention , treatment, recycling, composting
and disposal method that aims to provide environmental
sustainability ,economic affordability and social acceptance
for any specific region.
 ISWM which combines a variety of strategies for both waste
management and waste reduction.
 The major ISWM activities are waste reduction, recycling and
composting , combustion and disposal is properly designed ,
constructed and managed landfills.
 This includes the three R’s : reduce,reuse and recycle.
Waste generation
Onsite handling, storage and processing
Collection
Transfer and Transport
Resource Recovery
and Processing
Disposal
 The materials that are collected under the term solid waste
include many different substances from a multitude of sources.
 The sources of solid wastes are dependent on the
socioeconomic and technological levels of a society.
Residential Agriculture Commercial
Industrial
waste
Institutional
solid waste
Hospital
solid waste
ON-SITE HANDLING
 On-site handling methods and principles involve public
attitude and individual belief and ultimately affects the public
health.
 It is an activity associated with the handling of solid waste
until it is placed in the containers used for its storage before
collection.
 On- site handling methods:
1. Sorting
2. shredding
3. grinding
4. composting
ON-SITE STORAGE:
 The first phase to manage solid waste is at home level. It
requires temporary storage of refuse on the premises.
 For individual homes, industries, and other commercial
centers, proper on-site storage of solid waste is the beginning
of disposal, because unkept or simple dumps are sources of
nuisance, flies, smells and other hazards.
STORAGE CONTAINER:
 Garbage and refuse generated in kitchens and other work areas
should be collected and stored in properly designed and
constructed water-proof garbage cans (waste bins).
TYPES OF CONTAINERS
 Plastic liners for cans and wrapping for garbage reduce the need
for cleaning of cans and bulk containers, and keep down odors,
rat and fly breeding.
 Galvanized metal is preferable for garbage storage because it is
resistant to corrosion. Plastic cans are light in weight but are
easily gnawed by rats.
 Bulk containers are recommended where large volumes of refuse
are generated, such as at hotels, restaurants, apartment houses,
and shopping centers.
 A concrete platform provided with a drain to an approved sewer
with a water faucet at the site facilitates cleaning.
Plastic container
Galvanised metal
Concrete container Bulk container
CONTAINER SIZE:
 ash: up to 80 to 128 liters
 mixed refuse: should not exceed 120 to 128 liters
 rubbish up to 200 liters
 kitchen waste is 40 liters
 garbage is 48 to 80 liters
Importance of on-site processing:
 reduces volume of waste generated
 alters physical form
 recovers usable materials
Factors that should be considered in evaluating On-Site
processing are capabilities, reliability, environmental
effects,ease of operation, etc.
 This is the removal of refuse from the collection point to final
disposal site.
 It is the most expensive as compared with other operation and
management procedures, because it demands special vehicles,
more manpower, hand tools, more funds for maintenance,
gathering and picking up of solid waste from the various
source taking the collected wastes to the location where it is
unloaded .
House Dustbin Truck
transfer
station
disposal
COLLECTION SERVICES:
There are four types of collection services:
 Curb (curb side): The home owner is responsible for placing
and returning the empty container. Never entirely satisfactory
 Set-out (block collection): Owner is responsible for returning
the container. The full containers are brought or set at the
collection site by the crew. Bins are not left out on the street
for long periods.
 Backyard carrying service (door to door collection):
Collection crews that go along with the collection vehicle are
responsible for bringing out stored solid waste from the
dwelling units. It is the only satisfactory system in which the
householder does not get involved.
 Alleys: a narrow street or path between buildings in a town.
That is difficult to get the container and also to the vehicle that
will collect the waste.
Curb collection Set out collection
backyard collection Alley collection
Modes of operation in solid waste collection
 Hauled container system- The containers used for the
storage of wastes are hauled to the disposal site, emptied and
returned. The labour requirements for this system is one
person, two for safety, and a driver to drive the vehicle load
are needed.
 Stationary container system - The containers used for the
storage of waste remain at the point of generation except for
occasional short trips to the collection vehicles. The labour
requirements for mechanically loaded is one driver and two
helper are needed.
 Transfer stations are employed when the disposal site is
situated at significant distance from the point of collection.
 It can reduce the cost of transporting refuse by reducing
manpower requirement and total kilometers. For transfer one
driver is needed.
 It may include stationary compactors, recycling bins, material
recovery facility, mobile equipment.
 Transfer and transport station should provide welfare facilities
for workers (lockers,toilets,showers); small stores for brooms ,
shovels ,cleaning materials, parking facilities for hand truck ,
sweepers , refuse collectors .
 Resource recovery is a partial solid waste disposal and
reclamation process. It can be expected to achieve about 60%
reductions in future landfill volume requirements.
 After recovery the materials from solid waste and remaining
unwanted materials are disposed. A site location close to the
center of the generators of solid.
Products that can be recycled
 Plastic
 Tires
 Paper
 glass
TECHNIQUES INVOLVED IN RESOURCE RECOVERY
 Compaction , which mechanically reduces the volume of solid
waste
 chemical volume reduction by incineration
 mechanical size reduction by shredding, grinding and milling
 component separation by hand-sorting, air separation,magnetic
separation and screening
 In solid waste management, disposal is one of basic programs
that has to be done with maximum precautions. If it is not
done effectively and efficiently, the whole program will not be
satisfactory.
 Disposal of solid waste has to be accomplished without the
creation of nusiance and health hazards in order to fullfill the
objectives of SWM. These are
1. Improvement of asthetic apperance of the environment
2. Avoidance of smells and unsightliness
3. Reduction of disease by curtailing fly and rodent breeding
4. Prevention of humans and stray dogs from scavenging
 In disposal of solids wastes, it is recommended that the
following be done to avoid any risks:
1. The disposal site should be 30 meters from water sources in
order to prevent possible contamination
2. Radioactive materials and explosives should not be together.
3. The site should be fenced to keep way scavengers.
4. All surfaces of the dump should be covered.
5. All wastes should be dumped in layers and compacted.
6. The disposal site should be about 500 meters from
residential areas.
Generally there are several methods of solid waste disposal that
can be utilized. These methods are:
1. Ordinary open dumping
2. Incineration
3. Sanitary landfill
4. Composting
5. Grinding and discharge into sewer
6. Recycling
7. Dumping into water bodies.
Integrated solid waste management
Integrated solid waste management

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Integrated solid waste management

  • 1.
  • 2.  Integrated solid waste management (ISWM) is a comprehesive waste collection, prevention , treatment, recycling, composting and disposal method that aims to provide environmental sustainability ,economic affordability and social acceptance for any specific region.  ISWM which combines a variety of strategies for both waste management and waste reduction.  The major ISWM activities are waste reduction, recycling and composting , combustion and disposal is properly designed , constructed and managed landfills.  This includes the three R’s : reduce,reuse and recycle.
  • 3.
  • 4. Waste generation Onsite handling, storage and processing Collection Transfer and Transport Resource Recovery and Processing Disposal
  • 5.  The materials that are collected under the term solid waste include many different substances from a multitude of sources.  The sources of solid wastes are dependent on the socioeconomic and technological levels of a society. Residential Agriculture Commercial Industrial waste Institutional solid waste Hospital solid waste
  • 6. ON-SITE HANDLING  On-site handling methods and principles involve public attitude and individual belief and ultimately affects the public health.  It is an activity associated with the handling of solid waste until it is placed in the containers used for its storage before collection.  On- site handling methods: 1. Sorting 2. shredding 3. grinding 4. composting
  • 7. ON-SITE STORAGE:  The first phase to manage solid waste is at home level. It requires temporary storage of refuse on the premises.  For individual homes, industries, and other commercial centers, proper on-site storage of solid waste is the beginning of disposal, because unkept or simple dumps are sources of nuisance, flies, smells and other hazards.
  • 8. STORAGE CONTAINER:  Garbage and refuse generated in kitchens and other work areas should be collected and stored in properly designed and constructed water-proof garbage cans (waste bins). TYPES OF CONTAINERS  Plastic liners for cans and wrapping for garbage reduce the need for cleaning of cans and bulk containers, and keep down odors, rat and fly breeding.  Galvanized metal is preferable for garbage storage because it is resistant to corrosion. Plastic cans are light in weight but are easily gnawed by rats.  Bulk containers are recommended where large volumes of refuse are generated, such as at hotels, restaurants, apartment houses, and shopping centers.  A concrete platform provided with a drain to an approved sewer with a water faucet at the site facilitates cleaning.
  • 10. CONTAINER SIZE:  ash: up to 80 to 128 liters  mixed refuse: should not exceed 120 to 128 liters  rubbish up to 200 liters  kitchen waste is 40 liters  garbage is 48 to 80 liters Importance of on-site processing:  reduces volume of waste generated  alters physical form  recovers usable materials Factors that should be considered in evaluating On-Site processing are capabilities, reliability, environmental effects,ease of operation, etc.
  • 11.  This is the removal of refuse from the collection point to final disposal site.  It is the most expensive as compared with other operation and management procedures, because it demands special vehicles, more manpower, hand tools, more funds for maintenance, gathering and picking up of solid waste from the various source taking the collected wastes to the location where it is unloaded . House Dustbin Truck transfer station disposal
  • 12. COLLECTION SERVICES: There are four types of collection services:  Curb (curb side): The home owner is responsible for placing and returning the empty container. Never entirely satisfactory  Set-out (block collection): Owner is responsible for returning the container. The full containers are brought or set at the collection site by the crew. Bins are not left out on the street for long periods.  Backyard carrying service (door to door collection): Collection crews that go along with the collection vehicle are responsible for bringing out stored solid waste from the dwelling units. It is the only satisfactory system in which the householder does not get involved.  Alleys: a narrow street or path between buildings in a town. That is difficult to get the container and also to the vehicle that will collect the waste.
  • 13. Curb collection Set out collection backyard collection Alley collection
  • 14. Modes of operation in solid waste collection  Hauled container system- The containers used for the storage of wastes are hauled to the disposal site, emptied and returned. The labour requirements for this system is one person, two for safety, and a driver to drive the vehicle load are needed.  Stationary container system - The containers used for the storage of waste remain at the point of generation except for occasional short trips to the collection vehicles. The labour requirements for mechanically loaded is one driver and two helper are needed.
  • 15.  Transfer stations are employed when the disposal site is situated at significant distance from the point of collection.  It can reduce the cost of transporting refuse by reducing manpower requirement and total kilometers. For transfer one driver is needed.  It may include stationary compactors, recycling bins, material recovery facility, mobile equipment.  Transfer and transport station should provide welfare facilities for workers (lockers,toilets,showers); small stores for brooms , shovels ,cleaning materials, parking facilities for hand truck , sweepers , refuse collectors .
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  • 17.  Resource recovery is a partial solid waste disposal and reclamation process. It can be expected to achieve about 60% reductions in future landfill volume requirements.  After recovery the materials from solid waste and remaining unwanted materials are disposed. A site location close to the center of the generators of solid. Products that can be recycled  Plastic  Tires  Paper  glass
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  • 19. TECHNIQUES INVOLVED IN RESOURCE RECOVERY  Compaction , which mechanically reduces the volume of solid waste  chemical volume reduction by incineration  mechanical size reduction by shredding, grinding and milling  component separation by hand-sorting, air separation,magnetic separation and screening
  • 20.  In solid waste management, disposal is one of basic programs that has to be done with maximum precautions. If it is not done effectively and efficiently, the whole program will not be satisfactory.  Disposal of solid waste has to be accomplished without the creation of nusiance and health hazards in order to fullfill the objectives of SWM. These are 1. Improvement of asthetic apperance of the environment 2. Avoidance of smells and unsightliness 3. Reduction of disease by curtailing fly and rodent breeding 4. Prevention of humans and stray dogs from scavenging
  • 21.  In disposal of solids wastes, it is recommended that the following be done to avoid any risks: 1. The disposal site should be 30 meters from water sources in order to prevent possible contamination 2. Radioactive materials and explosives should not be together. 3. The site should be fenced to keep way scavengers. 4. All surfaces of the dump should be covered. 5. All wastes should be dumped in layers and compacted. 6. The disposal site should be about 500 meters from residential areas.
  • 22. Generally there are several methods of solid waste disposal that can be utilized. These methods are: 1. Ordinary open dumping 2. Incineration 3. Sanitary landfill 4. Composting 5. Grinding and discharge into sewer 6. Recycling 7. Dumping into water bodies.