INDUSTRIAL WASTEWATER TREATMENT

INDUSTRIAL WASTEWATER TREATMENT

ABSTRACT

As we know that wastewater generally contain 99.9% water and 0.1% of solid impurities, therefore wastewater have a large potential as a source of water after its treatments for different purposes about 50% to 60 % of water demand of any city is generally consumed by the industries. Therefore the treatment of this industrial wastewater is important, to generate alternative source of water. To minimize the loat on existing sources of water for fulfilling demand of that city.
In this paper I have tried to represent the general aspect of industrial wastewater treatments related to different characteristics of industrial wastewater and the permissible limits as per the rules and regulation of pollution control boards. The emphasis is mainly on methods of treatment and there suitability related with economy and environments.
Industrial wastewater treatment method which we have been covered in this paper based on Physical, Chemical and Biological treatments related with conventional wastewater treatments including Filtration, Activated Sludge Process and Non-conventional methods including Oxidation ponds, Aerated lagoons, Oxidation ditch, Oxidation lagoon followed by aerated lagoons.
Advance non-conventional methods of industrial wastewater like Up flow An aerobic Sludge Blanket (UASB). Physical treatment methods related with removal of colours, odour and floating impurities. Chemical treatment methods discussed with related to dissolved chemical impurities or solid chemical impurities present in the wastewater. Biological treatments methods explain in this paper are related stabilization of unstable organic matter present in the wastewater.