Characteristics Of Sugar Industry Waste Water And Performance Evaluation Of Effluent Treatment Plant

Abstract

This paper presents about performance evaluation of E T P of Sugar industry wastewater. The large quantity of wastewater generated at all stages of sugar production are highly contaminated because of improper water management. This type of waste water is discharged to surface water or on land. The Karnataka Pollution Control Board (KPCB) has prescribed that the effluent generation in a sugar factory has to be limited to 1000 L/tons of cane crushed. Also as per CREP norms, certain provisions have been made for sugar factory effluent treatment as well.

An attempt has been made to evaluate the performance of Effluent treatment plant (ETP) of KPR Sugar Mills Pvt.Ltd in a district of Vijayapur. This factory has provided and managed well equipped effluent treatment plant of capacity15000 TCD and a distillery of 90KLPD. During this study, the samples were collected in clean polyethylene containers. A total of 6 grab samples were collected at an regular interval of 2hours [8am, 10am, 12pm, 2pm, 4pm, 6pm] in each shift and mixed to give composite sample. Performance appraisal is been carried out by comparing the concentrations of pollutants at the inlet and outlet of the treatment unit. The grab samples was collected at the inlet and outlet of all the treatment units and analyzed as outlined in the standard methods for the examination of water and wastewater. The samples were analyzed to various parameters like pH, BOD, COD, and TDS depending on the results, performance of each unit were evaluated. The present study shows that treated effluent is clear. Overall COD and BOD removal efficiency of ETP was more than 96%on an average. Average TDS removal efficiency is 90%. And all other parameters are within consented limits stipulated by KPCB.