POLLUTION STUDIES ON SUGAR MILL EFFLUENT-PHYSICO- CHEMICAL CHARACTERISTICS AND TOXIC METALSR.D.SENTITIL KUMAR, R. NARAYANA SWAMY, K. RAMAKRISHNANAbstract Physico-Chemical parameters and toxic metal contents in the effuents discharged from sugarmills have been studied. The study reveals most of the physico-chemical parameters such as colour, odour, Total Solids, COD, HOD, alkalinity, Fluoride have exceeded the IS! (Indian Standard Institution) prescribed permissible values while pH, phosphate, sulphate are found within the permissible limits. The concentratio a of toxic metals viz., Cd, Cu, Fe, HG, Mg., Mn, N, Pb and Zn was determined by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The Fe, Hg, Mg, Mn and Pb content exceeds the permissible limits, Cd, Cu, and Zn are within the permissible limits while Ni is found in traces only.
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