Simultaneous Removal of Carbonaceous and Nitrogenous Substances in Wastewater by a Continuous-Flow Fluidized-Bed Bioreactor

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Xin-Hui Xing¹  Hajime Unno¹  Naohiro Shiragami¹ 

[1] Department of Bioengineering, Tokyo Institute of Technology

关键词: Biochemical Engineering;    Fluidized-Bed Bioreactor;    Porous Carrier Particles;    Continuous Operation;    Orgainc Oxidation;    Ammonification;    Nitrification;    Denitrification;    Microbial Activity;    Kinetic Analysis;   

DOI  :  10.1252/jcej.28.525

来源: Maruzen Company Ltd

【 摘 要 】

References(20)Cited-By(17)A continuous-flow fluidized-bed bioreactor system containing porous carrier particles was operated for simultaneous removal of carbonaceous and nitrogenous substances from wastewaster. The bioreactor system consisted of two aerobic reactors in series with recycle-flow. Organic oxidation, ammonification of urea and nitrification took place in both reactors, while denitrification concurrent with those reactions occurred in the reactor where the artificial sewage and recycled fluid were fed. In the steady state, measurement of microbial activities in the reactors confirmed the presence of the respective bacteria participating in the above reactions. These multiple reactions proceeded simultaneously in the bioreactor system were analyzed by a set of simple reaction kinetics, which interpreted the experimental results well.

【 授权许可】

Unknown