Performance Evaluation of Common Effluent Treatment Plant for Tanneries at Vaniyambadi, Vellore, Tamil Nadu

The present study has been undertaken to evaluate performance efficiency of the Common Effluent Treatment Plant (CETP) at Vaniyambadi, Vellore. Waste water samples were collected at four different stages of the treatment units and analysed for various physico-chemical parameters such as pH, temperature, turbidity, EC, TSS, TDS, BOD, COD and heavy metals. The values obtained for different parameters were compared with standard values given by National Environmental Quality Standards (NEQS) for waste water quality. The CETP has been working with the norms of NEQS and Tamil Nadu Pollution Control Board (TNPCB) and meeting the standard discharge limits.