Waste Disposal Management

Vishvaraj Chauhan;First Year Chemical Engineering;Sarvajanik College of Engineering & Technology, Surat.

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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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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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Whoa. That was a mouthful.

Simply speaking, waste is anything the user wants to discard.

Pretty much…

THIS.

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Types Of Wastes.1.) Municipal Wastes: Include

household wastes, commercial wastes etc.

Examples: Fruit remains, plastic bags, wrappers, thermocol, etc.

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2.) Hazardous waste: Includes industrial wastes, i.e. Toxic waste, chemical waste, metal remains etc.

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3.) Bio-Medical Waste:

Source: The Times of India.

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4.) Special Hazardous Waste.Special Hazardous waste includes Radioactive waste, explosives waste, and Electronic waste (e-waste).

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Now you might think…

SO WHAT? SO WHAT IF WE

PRODUCE WASTE?

SO NOW I’LL TELL YOU…

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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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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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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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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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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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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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3.) Water Treatment Plants

Sewage treatment is the process of removing contaminants from wastewater and household sewage, both runoff (effluents), domestic, commercial 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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All Well and Good; But..

What can YOU do about it?

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THE THREE R’S

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Even Though;

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Ensure that your MunicipalCorporation disposes off the wasteproperly.

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Set An Example.

No, not like that!

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Rather, be a responsiblecitizen

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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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Educate your peers…

Use dustbins…

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Till they are not needed….

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Remember.. We are all in the same boat. ALL OF US.

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Be Responsible.

Be Wise.

BE ECO-FRIENDLY

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Thank You!