Physicochemical characteristics of paper industry effluents—a case study of South India Paper Mill (SIPM) (original) (raw)

2011, Environmental Monitoring and Assessment

Pulp and paper mills generate varieties of pollutants depending upon type of the pulping process being used. This paper presents the characteristics of wastewater from South India Paper Mill, Karnataka, India which is using recycled waste paper as a raw material. The raw wastewater consists of 80-90 mg L −1 suspended solid and 1,010-1,015 mg L −1 dissolved solid. However, pH varied from 5.5-6.8. The biochemical oxygen demand and chemical oxygen demand ranged from 200-210 and 1,120-1,160 mg L −1 , respectively. Aerobic treatment of raw effluent attribute to significant reduction in suspended solid (range between 25 to 30 mg L −1) and total dissolved solid (range between 360 to 390 mg L −1). However, pH, temperature, and