The document discusses waste disposal management. It begins by asking what waste is, why proper disposal is important, and how waste can be disposed of. It then defines different types of waste like municipal, hazardous, biomedical, and special hazardous waste. The costs of improper waste disposal on the environment, society, and economy are outlined. Common waste disposal methods like landfills and incineration are described along with their potential issues. The document concludes by emphasizing the importance of proper waste separation, disposal, and educating others to ensure waste does not threaten human and environmental health.

1. Waste Disposal Management
Vishvaraj Chauhan;
First Year Chemical Engineering;
Sarvajanik College of Engineering & Technology,
Surat.

2. How? What? Why?



What? Waste disposal. Yes, whatever waste we
create, ranging from cotton swabs to used uranium
in nuclear reactors, it needs to be disposed. And
no, not creating waste is impossible.
Why? Simply because if left untreated, it can be
toxic to a very high degree and may even threaten
the life on Planet Earth.
How? Lot’s of methods, but prevention is always
better than cure.
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3. What Is Waste?

According to the Basel convention of the United
Nation’s Environment Programme:
“'Wastes' are substances or objects, which are
disposed of or are intended to be disposed of or
are required to be disposed of by the provisions of
national law”
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4. Whoa. That was a mouthful.
Simply speaking, waste is anything the user
wants to discard.
Pretty much…
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5. Types Of Wastes.
1.) Municipal Wastes: Include
household wastes, commercial
wastes etc.
 Examples: Fruit remains, plastic
bags, wrappers, thermocol, etc.

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6. 2.) Hazardous waste: Includes industrial wastes, i.e.
Toxic waste, chemical waste, metal remains etc.
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7. 3.) Bio-Medical Waste:
Source: The Times of India.
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8. 4.) Special Hazardous
Waste.
Special Hazardous waste includes Radioactive
waste, explosives waste, and Electronic waste (ewaste).
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10. The Costs Of Waste.
Environmental Costs: Inappropriately
managed waste can attract rodents and
insects, which cause yellow
fever, worms, the plague and other
conditions for humans, and exposure to
hazardous wastes, when they are
burned, can cause various other diseases
including cancers.
 Toxic waste materials can contaminate
surface water, groundwater, soil, and air
which causes more problems for
humans, other species, and ecosystems.

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11. Social Costs: Many of the environmental
burdens cited before are more often than not
borne by marginalized groups, such as racial
minorities, women, and residents of
developing nations; which leads to huge
deformalities amongst a part of human
population.
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12. Economic Costs: (Because nothing else
catches our eye the most): The economic costs
of managing waste are high, and are often paid
for by municipal governments, and eventually
burn a hole in your pockets.
Environmental policies such as ”pay as you
throw” can reduce the cost of management and
reduce waste quantities
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13. How Can We Counter Waste?
 Waste can be countered by effective waste



management.
All waste materials, whether they are
solid, liquid, gaseous or radioactive fall within the
remit of waste management.
Waste management practices can differ for
developed and developing
nations, for urban and rural areas, and
for residential and industrial producers.
However, reduction in the amount of waste is
probably the most effective and easy counter.
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14. METHODS OF WASTE DISPOSAL
1.) Landfill



Disposal of waste in a landfill involves burying the
waste, and this remains a common practice in most
countries.
Poorly designed or poorly managed landfills can create
a number of adverse environmental impacts such as
wind-blown litter, attraction of vermin, and generation of
liquid leachate.
Another common product of landfills is gas (mostly
composed of methane and carbon dioxide), which is
produced as organic waste breaks down anaerobically.
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15. 2.) Incineration



Incineration is a disposal method in which solid organic
wastes are subjected to combustion so as to convert
them into residue and gaseous products.
Combustion in an incinerator is not always perfect and
there have been concerns about pollutants in gaseous
emissions from incinerator stacks.
Particular concern has focused on some very persistent
organics which may be created which may have serious
environmental consequences.
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16. 3.) Water Treatment
Plants
 Sewage treatment is the process of
removing contaminants from wastewater and
household sewage, both runoff (effluents), domestic, co
mmercial and institutional.
 Using advanced technology it is now possible to re-use
sewage effluent for drinking water, although Singapore
is the only country to implement such technology on a
production scale in its production of ’NEWater’.
 The objective of sewage treatment is to produce a
disposable effluent without causing harm to the
surrounding environment, and prevent pollution.
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20. Ensure that your Municipal
Corporation disposes off the
waste
properly.
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21. Set An Example.
No, not like that!
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23. Separate your waste.
Firstly, into bio-degradable and plastics. Remember, not all plastics
are environmental hazards. Depending upon the polymer
content, plastics are divided as (Remember, lower the plastic, more
is the material eco-friendly.):
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24. Educate your peers…
Use
dustbins…
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25. Till they are not needed….
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26. Remember.. We are all in the
same boat. ALL OF US.
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