Dairy is one of the industries producing wastewater characterized by high biological oxygen demand (BOD) and chemical
oxygen demand (COD) concentrations, and generally contain fats, nutrients, lactose, as well as detergents and sanitizing
agents. Dairy effluents decompose rapidly and deplete the dissolved oxygen level of the receiving streams immediately
resulting in anaerobic conditions and release of strong foul odour due to nuisance conditions. The receiving water
becomes breeding place for flies and a mosquitoes carrying malaria and other dangerous diseases like dengue fever,
yellow fever etc and so as human health is compromised. It is also reported that higher concentration of dairy wastes are
toxic to certain varieties of fish and algae. The casein precipitation from waste which decomposes further into a highly
odorous black sludge at certain dilutions the dairy waste is found to be toxic to fish also. Dairy effluent contains soluble
organics, suspended, solids, trace organics. They do increase & promote release of gases, causeing taste and odour, impart
colour or turbidity, and promote eutrophication
Dairy is one of the industries producing wastewater characterized by high biological oxygen demand (BOD) and chemicaloxygen demand (COD) concentrations, and generally contain fats, nutrients, lactose, as well as detergents and sanitizingagents. Dairy effluents decompose rapidly and deplete the dissolved oxygen level of the receiving streams immediatelyresulting in anaerobic conditions and release of strong foul odour due to nuisance conditions. The receiving waterbecomes breeding place for flies and a mosquitoes carrying malaria and other dangerous diseases like dengue fever,yellow fever etc and so as human health is compromised. It is also reported that higher concentration of dairy wastes aretoxic to certain varieties of fish and algae. The casein precipitation from waste which decomposes further into a highlyodorous black sludge at certain dilutions the dairy waste is found to be toxic to fish also. Dairy effluent contains solubleorganics, suspended, solids, trace organics. They do increase & promote release of gases, causeing taste and odour, impartcolour or turbidity, and promote eutrophication
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