Physico-chemical and Microbiological Analysis of Dairy Effluents, Nathayyapalem, Gajuwaka, Visakhapatnam, Andhra Pradesh

Abstract

The physico-chemical and microbiological parameters of both untreated and treated effluents of Visakha dairy farm were studied. The physical properties of the effluents such as pH, conductivity, turbidity and temperature were determined. The chemical parameters evaluated were DO, total hardness, calcium hardness, magnesium hardness, chlorides, total solids, total dissolved solids, suspended solids, nitrates, ammonia, hexavalent chromium, nickel, iron, copper and oil and grease. The microbiological parameters employed were MPN test and total plate count. Studies on bioremediation involve removal of some of the pollutants such as ammonia, copper and oil and grease from untreated dairy effluent by viable, killed and immobilized non-pathogenic bacteria.