T.BHAVANI, P. N. SARMA AND D. KRISIINA
Abstract
Very good correlations were observed among th physico-chemical properties like pH, conductivity (COND), Total Dissolved Solids (TDS), and Chemical Oxygen Demand (COD) for the effluents of various chemical process industries and IICT (Indian Institute of chemical Technology, Hyderabad) processes. These correlations are very helpful in knowing the associations among the physico-chemical properties of effluents. Also, good prediction equations have been developed for predicting COD in terms of pH COD and TDS.