ABSTRACT
In recent years extensive investigations have been carried out all over the world on industrial wastewater treatment. The organic conventional parameters such as BOD, COD and TOC which are significant indicators in wastewater pollution are usually removed by biological methods. Among these methods aerobic biological ones are preferred over the anaerobic systems due to simplicity in their operation and control. However, for strong organic wastewaters anaerobic treatment systems become increasingly preferable over the aerobic methods since anaerobic processes are bioenergy producers. Consequently, anaerobic biological treatment methods are being continuously developed.
