Oxygen Uptake Characteristics of Microbial Film for Aerobic Wastewater Treatment

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Kohei Urano³  Hong-Ying Hu¹  Koichi Fujie¹  Yasuo Ikeda³  Yoshinori Yushina² 

[1] Dept. Ecological Eng., Toyohashi University of Technology;Chiyoda Co.;Dept. Materials Sci. & Chem. Eng., Yokohama National University

关键词: Biochemical Engineering;    Environment;    Wastewater Treatment;    Microbial Film;    Oxygen Uptake;    BOD Removal;    Endogenous Respiration;    Cell Yield;   

DOI  :  10.1252/jcej.27.585

来源: Maruzen Company Ltd

【 摘 要 】

References(9)The oxygen uptake characteristics of microbial film for aerobic BOD removal in a submerged biofilter was investigated. The oxygen uptake rate of the microbial film was determined by the off-gas analysis method, and the oxygen uptake for both aerobic BOD removal and endogenous respiration were determined. The relationship between oxygen yield and cell yield for a given organic substrate was investigated as well. It was shown that the oxygen yield for BOD removal decreased with an increase in cell yield. The oxygen yield was little changed while the endogenous respiration of microbes was significantly reduced with increased microbial film thickness. Moreover the self-degradation of microbes under aerobic conditions was hindered by clogging of packing materials due to excess growth of microbial film.

【 授权许可】

Unknown