Biological Treatment of Wastewater Using Activated Sludge Process and Sequential Batch Reactor Process - A Review

This paper intends to provide an overall information about Biological Treatment of Sewage using Activated Sludge process(ASP) and Sequential Batch Process(SBR). There are various processes for treating municipal domestic sewage but amongst all of them it has been observed that Activated sludge process(ASP) and Sequential Batch Process(SBR) was adopted at most of the places. The overall efficiency of SBR is higher than ASP at low cost in less space for continuous flow and even for intermittent flow provides preference to SBR in selection of technology for biological treatment of wastewater.