its about the research work of solid waste management. it is also a case study

3.  The purpose of this presentation is to
elaborate and increase awareness on the
potential solid waste (hazardous and mixed
waste) disposal poses to the environment.
 Waste treatment and disposal
 Environment impacts of solid wastes
 Preventive measures

4.  Every day thousands of students buy food or
drinks from canteen, those food or dinks are
packed into different polythene bags,
disposable plastic cups or disposable plates.
 Those polythene bag, plastic cups, plates are
disposed of into the garbage cans and then
into environment.
 Those bags and disposable things are very
hazardous for environment and human life

6.  Polythene bags, plastic cups and plates are
not biodegradable.
 They remain present in environment for long
period.

7. Solid waste extract from university is openly
dumped by waste management near
agriculture land adjacent to university
boundary.

8.  Plastic bags don't biodegrade, breaking
down into smaller and smaller toxic bits,
contaminating soil and waterways and
entering the food web when animals
accidentally ingest them.
 A plastic bag can take between 400 to 1,000
years to break down in the environment.
 They also kill livestock.
 Toxic substances reach down with rain
water cause ground water contamination.

9. Continue……
Plastic containers and coatings help keep food
fresh, but they can also leave behind
neurotoxins such as BPA (Bisphenol A) in the
human body.
 Waste breaks down in landfills in the form of
small toxic bits to form methane, a potent
greenhouse gas
Littering, due to waste pollutions, illegal
dumping of wastes cause Leaching: is a process
by which solid waste enter soil and ground
water and contaminating them.

10.  Plastic bags slowly release toxic chemicals
that has many effects on soil and crops.

11.  Soil adsorption, soil absorb rain water with toxic
substances released from polythene bags.
 Plant uptake, contaminated water uptake by
plants
 Leaching
 Insects, birds, rats, flies etc.

12. Waste treatment Waste disposal
 Incineration
 Solidification
 Heat treatment:
 Chemical treatment
 Landfills
 Underground injection
wells
 Waste piles
 land treatment

13.  Incineration: Burning of hazardous waste.
 Solidification: solid waste are melted or
evaporated to produce a sand like residue.
 Heat treatment: Heat applied at moderate
temperature, is used in treating volatile
solvents.
 Chemical treatment: is the application of
chemical treatment in the treatment of
corrosive solid.

14.  Landfills: waste is placed into or onto the land
in disposal facilities.
 Underground injection wells: waste are
injected under pressure into a steel and
concrete-encased shafts placed deep in the
earth.
 Waste piles: is accumulations of insoluble
solid, non flowing hazard waste. Piles serves
as temporary or final disposal.

15.  Land treatment: It is a process in which
solid waste, such as sludge from wastes is
applied onto or incorporated into the soil
surface.

16.  Proper management of solid waste.
 Involving students and workers in plans for
waste treatment and disposal.
 Create awareness in students and canteen
staff.
 Give suggestions on different ways of
handling waste.