Ecology, Environment and Conservation Paper

EFFECT OF NEEM (AZADIRACHTA INDICA, JUSS) ON SEWAGE MICROBES

S. RAJENDRAN AND K.S. SUNDARARAJAN

Abstract

Necrti powder when added to raw sewage reduced the microbial population in sewage. The damage ou.i.sed to microbes dep,ends on the concentration of neem powder. Neem powder seems to work ax a coagulant in the sewage treatment process and in certain concentrations it causes adverse effects on certain physico-chemical parameters of raw sewage. Reduction of microbes is influenced if mem powder is added to sewage being treated with aquatic plants like Puna stratoites (L). It is suggested that judicious application,of mem powder can serve as a low-cost device to reduce the microbial population in sewage treatment.