Waste is the junk material we dispose of from kitchens, rest of the houses,
offices, laboratories manufacturing units and industrial processes. Waste
can be in solid or fluid or wet solid or even gaseous form. Garbage is
normally thrown at the nearest dumping yard. Often it creates trouble in
countries like India, as the garbage management is not very well implemented
yet. In many advanced countries, it is well implemented systematically. It may be surprising to know that millions of tons of waste is generated each
One method to deal with garbage is to destroy
and decompose it chemically. This is not always practical and
economical. It results in burning fuel, pollution and global
warming. Another method to deal with garbage is to dump it in a junkyard
far away from residential areas. However, the space is used and people
living nearby may object to it.
Another possibility is to use technologies to
implement Reduce, Recycle, Reuse (RRR) methods that suits each type of
garbage. This option is good because we get rid of waste while
making a use of it. We also generate employment and wealth in terms of
The process is to collect each type of garbage
in a different garbage bin. So garbage management methods will be
different for different paper, glass bottles, rubber, plastic, organic waste
from kitchen etc. They can be processed and the material can be recycled
by a manufacturing plant. Paper and related materials can be
recycled to make cartons or such objects.
Organic waste can be used for generation of biogas or as fuel perhaps.
Plastic, polythene, rubber type of materials can be used as fuels or raw
materials. Some kind of oils can be
generated from them. Often people in rural areas water plants in
their backyard by reusing waste water from the house. They use the waste from
kitchen as a fertilizer for the plants. World over, there are already
small scale industrial units in many urban areas doing this.
There is some difficulty at the moment, in this
way of using waste as a raw material. People throw all junk everywhere.
It is difficult to sort and separate the useful materials from others.
Also, certain materials may not be present in sufficient quantities for the
manufacturing units to use them as raw materials on a regular basis.
One good thing to happen will be to be able to use biodegradable materials in making many items that we use every day. This will reduce the generation of waste. Further these materials can be recycled more easily than others. In future, advancements in sciences and
technologies can give us good hope for converting a major part of waste into