Pollution Research Paper

PERFORMANCE STUDY OF A HUASB REACTOR FOR TREATING TAPIOCA-BASED STARCH INDUSTRIAL WASTE STREAM

S. GOVINDARADJANE, T. SUNDARARAJAN, M.A. SIVASANKARAN AND V. NEHRU KUMAR

Abstract

In this paper, performance of a HUASB reactor for treating a tapioca-based starch industrial waste stream has been studied and compared with that of a UASB reactor under identical conditions of operation. Six influent COD concentrations ranging from about 1700-5800 mg/L and five HRTs (8 to 24 hrs) were considered and performance of the reactors evaluated based on pre-set criteria i.e., on COD removal (%) and bio-gas yield. From an overall assessment, the HUASB reactor has performed better than the UASB reactor for treating the above waste stream.