Solid Waste
Management
It is our duty to reduce creating waste and
protect environment. 3R's are important in protecting environment. The first R
is reduce and the second R is reuse and the last R is recycle.
The waste hierarchy or pyramid shows the
bestwaysto manage solid waste.
1. Avoid
Avoid the usage of unwanted materials which
create more debris. Before you buy anything, think that “Do I really need it?”
(e.g) Avoid buying packaged foods. Refuse to buy use and throw plastic
products.
2. Reduce
We can reduce the waste by using durable goods
that last longer instead of things that are used once and thrown away. (e.g)
Write on both sides of papers. Instead of unnecessary printing, use electronic
facilities. Share newspapers, magazines and other things with others.
3. Reuse
Reusing means using a thing again and again,
rather than using and throwing after a single use. (e.g) Instead of using
plastic bags, use and throw pens and batteries, use cloth bags, fountain pens
and rechargeable batteries. Reuse glass bottles for other purposes. Repair foot
wears and use them.
Creative reuse
Creative reuse or Up- cycling is the process of converting waste
materials or useless products into new materials or products of better quality
or for better environmental value. When you upcycle, you are giving an item a
new purpose. (e.g) Used tyres into chairs. Used PET bottle into penstand.
4. Recycle
The process by which waste materials are used
to make new products is called recycling.(e.g) Using old clothes to make paper
and melting some plastics to make floor mats, plastic boards and hose pipes.
5. Compost
The process of degradation of organic wastes
into manure by the action of microorganism is called composting. The
manure thus obtained becomes natural fertilizer for the plants as well as
increases the soil fertility.
6. Incinerate
The burning of solid waste in incinerator is
called incineration. Human anatomical wastes (discarded medicines, toxic drugs,
blood, pus) are disposed by means of incineration. During incineration, the
enormous heat kills all contagious disease-causing germs. We can also produce
electricity with the help of this heat.
7. Landfill
Landfilling is a method in which wastes are
dumped into naturally occurring or man-made pits and covered with soil. Garbage
buried inside landfills remain here for a long time as they decompose very
slowly and become manure. These places can be converted into parks, gardens,
etc.,
Earlier in the chapter, you learn about Rani
and how she did not want to cause pollution. Simple steps in your daily life
can make big differences. There are two steps you should remember.
1. The first step
should always be to reduce waste. Think of the 3R’s and the waste pyramid and
remember the order of the levels.
2. The second step
is to keep waste separate. This way the waste will remain clean and can be
easily reused or recycled. Mixing different types of waste together (e.g.
biodegradable and non-biodegradable) makes waste dirty. Dirty waste gets sent
to a landfill or open dump.
Waste separation
exercise
The Solid Waste Management (SWM) rules, 2016
say that,
1. Every Household
should segregate and store the waste generated by them in three separate
streams – namely bio-degradable, non bio-degradable and domestic
hazardous waste in suitable bins and handover segregated wastes to
authorised waste pickers or waste collector as per the direction or
notification by the local authorities from time to time.
2. No body shall
throw, burn, or bury the solid waste on streets, open public spaces outside his
premises or in the drain or water bodies.
Domestic hazardous waste means discarded paint drums, pesticide
cans, CFL bulbs, tube lights, expired medicines, broken mercury thermometers,
used batteries, used needles and syringes and contaminated gauge, etc.,
generated at the household level.
Learn how to separate waste correctly into 3
waste bins so you can keep Tamilnadu clean and beautiful!
How much waste does each person
make around the world every day?
The average person in India produces
0.45kg of waste every day. It may be small amount of waste. But, India has a
large population and imagine you collected all the waste today and put it into
tractors. You would fill so many tractors that you could create a traffic jam
approximately 2,800 kilometres long. Imagine, a road all the way from
Kanyakumari to New Delhi completely blocked with tractors carrying garbage and
no space to walk in between. This is how much waste we create in India each
day! If we reduce the waste, we reduce the pollution. India produces 532
million kilos of solid waste every day.
Activity 4: Preparation of vermi compost
Dig a pit for about one feet depth
in the backyard or garden of your home or school. Fill the pit by bio wastes,
paper and food wastes, place few earth worms in it, sprinkle water and close
the place with jute or cardboard and ensure moisture all the time.
After 45 days the vermi casting
layer formed just above the pit. These castings will be applied to the plant.
This contains water soluble nutrients. This type of compost helps in plant
growth as well as sustain the land is fertility.
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