Co-treatment of septage in a municipal sewage treatment pond system

Kurup, B., Kurup, R., Mathew, K. and Ho, G. (2002) Co-treatment of septage in a municipal sewage treatment pond system. Water Science & Technology, 46 (9). pp. 315-321.

Abstract

This paper deals with the characteristics and treatment options of septage. The objective of the paper is to evaluate the effects of co-treatment of 50 MLD of septage in a sewage treatment pond system. The treatment efficiency of the pond system for BOD5 and Fecal Coliform (FC) has been estimated using a first order kinetics model. The model has predicted that the treatment pond system has a maximum capacity of 8.5 MLD and will have a reserve of 28.3% of its total capacity even after the proposed addition of 50 MLD of septage. Separation of oil and grease from septage prior to discharge into the pond system is recommended.