摘要:The monitoring and performance evaluation studies were carried out for an effluent treatment plant of a refinery located in the western region of India. The samples from the inlet and outlet locations of ETP were collected at regular intervals and were analyzed for different parameters. The pH, oil & grease, BOD, COD, suspended solids were found to be reduced significantly, where as the pH of the raw as well as the treated effluent remain almost the same. The generated data presented the evidence that the plant is working with the norms specified by the pollution control board and hence meeting the discharge standard line.