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The effect of the addition of plant latex to industrial effluents was studied. The latex obtained from the plant species Calotropis gigantea was found to alter the characteristics of the tannery effluent significantly. The addition of 0.1 ml of the latex to 20 ml of the composite waste liquor resulted in the reduction of TDS, BOD, COD and conductivity from 6500 – 6165 mg/L, 1661 – 332.2 mg/L, 2064 – 990 mg/L and 8.9 – 8.8 ms/cm respectively. The variation of these parameters with latex concentration was not found to be linear in some cases. The probable chemical changes occurring in these process have also been discussed.

Document Type: Research Article


Publication date: January 1, 2002

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