Soluble microbial product formation in biological systems

Effluents from biological treatment processes contain a variety of soluble organic matter, including residual influent substrate, soluble microbial pr oducts, and non- or slowly biodegradable organic materials. Several experim ental studies were carried out in lab-scale batch reactors to determine kin etic parameters and microbial product formation at the practical F/M ratios . The results show that biomass associated organic matters exist, which can not be degraded even in long term in the system. The kinetic parameters obs erved 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.