Waste is defined as unwanted or unusable materials that are discarded after primary use and have no value. There are three main types of waste: solid, liquid, and gaseous. Solid waste can be biodegradable like organic matter, or non-biodegradable materials that do not break down naturally like plastics. Waste management involves the collection, transport, treatment, and disposal of waste as well as monitoring and regulation. The three R's of waste management are reduce, reuse, and recycle in order to minimize waste production and promote reuse or recycling of materials.
3. WASTE
Waste are unwanted or
unusable materials. Waste is
any substance which is
discarded after primary use, or
is worthless, defective and of
no use. A by-product by
contrast is a joint product of
relatively minor economic
value.
4. 3 TYPES OF WASTE
SOLID WASTE
The waste in solid state
LIQUID
The waste in liquid state
GASEOUS WASTE
The waste in gaseous state
5. TYPES OF SOLID WASTE
BIODEGRADABLE
Biodegradable waste includes any
organic matter in waste which can be
broken down into carbon dioxide,
water, methane or simple organic
molecules by micro-organisms and
other living things by composting,
aerobic digestion, anaerobic digestion
or similar processes
NON-BIODEGRADABLE
• A Non-Biodegradable material can
be defined as a kind of substance
which cannot be broken down by
natural organisms and acts as a
source of pollution. ... Non-
biodegradable wastes are those who
cannot be decomposed or dissolved
by natural agents. They remain on
earth for thousands of years without
any degradation.
6. WASTE MANAGEMENT
WASTE MANAGEMENT INCLUDES THE ACTIVITIES AND ACTIONS
REQUIRED TO MANAGE WASTE FROM ITS INCEPTION TO ITS FINAL
DISPOSAL. THIS INCLUDES THE COLLECTION, TRANSPORT,
TREATMENT AND DISPOSAL OF WASTE, TOGETHER WITH
MONITORING AND REGULATION OF THE WASTE MANAGEMENT
PROCESS.
8. • Reduce
• We need to reduce the amount of waste generated by consuming more and
throwing away less. We often buy more things than we really need.
Nowadays, disposable items have become popular, for example, ballpoint
pen, plastic bag, disposable napkins etc. We are using them frequently
without giving a thought to their hazardous effects.
Here are some tips for reducing wastes:
• Use fountain pen in place of a ballpoint pen,
• Use old newspapers for packaging, and
• Use cloth napkins in place of disposable ones.
9. Reuse
We can reuse certain things for more than one
purpose. If we reuse them for other purposes,
we can help in reducing the waste. Here are
some of the tips for reusing things:
Small jars and bottles can be cleaned to keep
some other kitchen stuffs.
One should prefer glass bottle to metal can
when buying juice or soft drink. The bottles can
be refilled.
Old clothes can be made into other usable items
like cushion cover, handkerchief, etc.
Old mobile phones can be donated to friends or
family
10. Recycle
The process by which waste materials are used to
make new products is called recycling. Materials
like glass, metal, plastic, and paper are collected,
separated, and recycled to make new things.
11. CONCLUSION
• We should recycle waste to have a clean life.
• We should use the proper recycling method for each one
• The more clean we are, the more age we live !!!!
