Question

It is possible to reduce river pollution by using sewage water for irrigation

Answer 1

It is very much possible to reduce river pollution by using sewage water for irrigation and this is done by practicing Sewage Farming. Many of the industralized nations practice this method of farming where fresh water is very scarcely available.

There are techniques devised to remove the odor of the sewage in order to work with it. The bio-component is utilized for humus production by the action of bacteria.

But this needs further research and development to make it convenient for use in the wide geographical areas.

Probably solving some of the major disadvantages of the technique might help in it's wide scale acceptance.

Answer 2

Pollution caused by sewage water is one of the major problems in cities the world over. Sewage water is drained off into rivers without treatment. Careless disposal of sewage water leads to creation of a chain of problems like spreading of diseases, eutrophication, increase in Biological Oxygen Demand (BOD), etc.

The water used for domestic, industrial and other purposes gets converted into waste water. It is termed as sewage water. In ideal conditions, sewage water is channeled or piped out of cities so that it can be recycled. Sewage contains organic wastes as well as chemicals. The pollution of water occurring from sewage is mainly observed in developing countries. In these countries, sewage water is not disposed in a proper manner. In developed nations, a network of sewage pipes is used to take sewage away from cities. Treatment of waste minimizes pollution resulting from it. However, even in developed countries, the older cities may have sewage systems that are leaky.