Abstract

Preeti Jain¹ and Sucheta Khowal²

For the present study phosphate fertilizer unit was selected which were posing a great threat to environment. A study was made on Hindustan Phosphate situated at Pithampur Industrial area sec.no.1. It is situated 22 km away from Indore. Sample was collected in the month of May 2008 and following parameters were analyzed in laboratory – Temperature, pH, Total solids, and chlorides, BOD, COD, Phosphate, Sulphates, Nitrates, and Fluorides. The Hindustan Phosphate has got their treatment plants. So the study of both untreated and treated factory effluent was carried out. After treatment with lime followed by alum & PAC the following results were obtained, it is compared with the treated value. (Treatment with lime and alum). And comparative graphs were plotted. The COD value before treatment is 4,208 ppm and after treatment it is 1,328 ppm. Phosphate content before treatment is 292 ppm and after treatment with lime the value is 16 ppm. Similarly fluorides, pH, Suspended solids load get reduced in the effluent after treatment with lime and alum. Such effluent can cause corrosion of pipes due to low pH, Eutrophication problems in receiving water bodies due to high phosphate content, Fluorides concentration found to be greater than 1.5 mg/L . which affect whole aquatic system.

Fertilizer; alum; lime; BOD; COD; Phosphate; Effluent; pH; etc

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