Abstract
The government of India constructed 34 Sewage Treatment Plants (STPs) under the Yamuna Action Plan in order to restore water quality in Yamuna River. This paper evaluates cost effectiveness of such treatment processes as Upflow Anaerobic Sludge Blanket (UASB), Waste Stabilization Pond (WSP), Activated Sludge Process (ASP), and Biological Aerated Filter (BAF) operated in Yamuna River Basin. As a result, the effluents of the UASB and the WSP did not achieve the standard in India. However, when annual interest was assumed at 0. 75%, sewage treatment cost and COD removal cost for the UASB and the WSP tended to be less than ones for the ASP and the BAF in the basin.
