ABSTRACT
The release of untreated or poorly treated industrial wastewaters constituting nutrients, toxic heavy metals, non-biodegradable organic and inorganic materials, and other toxicants deteriorate these receiving freshwater systems. Industrial wastewaters/effluents are the liquid wastes produced from various industrial activities. The industrial wastewaters released into freshwater bodies after treatment are full of organic loads, which may add to the oxygen demand level of the receiving body. The proper concentration of oxygen in the aquatic ecosystem is essential in maintaining the biological life; if wastewater is poorly treated, it affects the aquatic flora and fauna of receiving system. Serious health hazards are caused by the environmental pollutions from industrial wastewaters released into our ecosystem. Industrial wastewater containing organic and inorganic complex compounds that are thrown into our ecosystem contribute a lot of toxic and hazardous pollutants. The biological degradation of the receiving water bodies depends on the quality of the industrial wastewater.
