Water problem

Water problem in the future will be more intense and complex.Our increasing population will tremendously increase urban  wastes and primarily sewage  . On the other hand ,increaing demands for water will decrease substantially the amount of water  avalibale for processing wasters. Rapidly expanding industries which involve more and more complex chemical processes will  produce large volume of liquid wasters and  many of these  will contain chemicals which are noxious . To feed our repidly expanding population,agriculture will  have to be intensefied .This will involve ever-increasing quantities  of agriculture chemicals.From this , it is apparent that serious steps must be taken immediately to develop corrective measures for the pollution problem.

There are two ways by which this pollution  problem can be settled .The first way relates to treatment of wastes to decrease their pollution danger. This involves processing of solid wasters prior to disposal and treatment of liquid waster and effluents, to permit the reuse of water or minimize pollution upon final disposal.

A second approach is to develop an economic use for all or a part of wastes.Farm manure is spread in fields as a nutrient and organic supplement. Effluents from sewage disposal plants are used in some area both for  irrigation and for  the nutrient contained. Effluents  from some processing plants may also be used as a  supplemental source of water.Many industries such as meat and poultry processing plants are currently converting former waste products into marketable byproducts.Other industries are exploring potential economic uses for their waste products.