Soluble microbial product formation in biological systems

Abstract

Effluents from biological treatment processes contain a variety of soluble organic matter, including residual influent substrate, soluble microbial products, and non- or slowly biodegradable organic materials. Several experimental studies were carried out in lab-scale batch reactors to determine kinetic parameters and microbial product formation at the practical F/M ratios. The results show that biomass associated organic matters exist, which cannot be degraded even in long term in the system. The kinetic parameters observed were as follows: Y-H=0.72, K-s=10 mg/l, mu (m)=2.9 gun(-1), b(H)=0.035 gun(-1), K-x=0.325, k(h)=2.2.