BIOLOGICAL TREATMENT OF WASTE WATER USING AQUATIC PLANTS AND ORGANISMS

Abstract

The increased awareness and valuing of wetlands over the past 50 years has in a large part been due to people
experiencing and connecting with these areas. The dynamics of east Kolkata wetlands has drawn our
attention towards the purification process that treats many million liters of water in east Kolkata. The process
is naturally occurring and has no man-made arrangements. You would be stunned to know that no
chemicals are involved in this treatment process and only aquatic plants and organisms (fishes) treat the
contaminated water. The east Kolkata wetlands is situated at 880 20’ E -880 35’ E and 200 25’ N - 200 35’ N.
Climate here is around sub-tropical and an annual rainfall of 200 cm. The maximum temperature here rises up
to 390C.In today’s world the scarcity of water has shown a major problem to the whole world. Fresh water is
available in very less quantity and quality. Even though water is polluted at a very large scale and no one
understands the consequences of what will happen to our coming generation. As per the rules every industry
emitting waste water has to install a waste water treatment plant in its industrial premises and reuse that water
wherever they can, but the sad part is that no one follows these rules.