MATERIAL BALANCE IN SEWAGE TREATMENT

Abstract

The most important characteristics of sewage purification is: cell retention time (CRT), sludge loading, ratio of recirculation or rather excess sludge removal. Of course, these parameters are in close connection with each other. To examine these connections, material balance seems to be the most suitable for either the aeration tank or for the aeration tank and sedimentation basin together. These equations are suitable to examine the method of sludge load, the most basic possibility of regulation. the ratio of recirculation and also the excess sludge can be determined.