COMPARISON OF DEGRADATION KINETICS OF FREE AND IMMOBILIZED Serratia spn FOR PHENOL REMOVAL FROM COKING WASTEWATER

摘要

Phenol and its derivatives are the most abundant organic contaminants in coking wastewater with high toxicity, carcinogenicity and mutagenesis, which often inhibit or kill the microorganisms in biological reactors. Therefore, it is necessary to screen a high-efficient phenol-degrading strain for improving degradation efficiency of phenol. In this study, a strain of Serratia sp. was isolated from coking wastewater treatment system and then immobilized using polyvinyl alcohol (PVA)-carrageenan. Fu