Simultaneous Organic Carbon Removal and Nitrification by Biofilm Formed on Oxygen Enrichment Membrane

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Akira Ohkawa¹  Kazuaki Yamagiwa¹  Okihiko Hirasa² 

[1] Department of Chemistry and Chemical Engineering, Niigata University;National Institute of Materials and Chemical Research

关键词: Wastewater Treatment;    Biofilm;    Nitrification;    Oxygen Enrichment Membrane;    Nitrifier;    Denitrifier;    Silicone Hollow Fiber;   

DOI  :  10.1252/jcej.27.638

来源: Maruzen Company Ltd

【 摘 要 】

References(22)Cited-By(18)Biorilm was formed on an oxygen enrichment-type support which consisted of a poly(dimethylsiloxane) hollow fiber membrane and a fibrous support woven around the fiber. Population distribution of nitrifiers and denitrifiers in the biofilm was investigated. Nitrifiers were dominant within the fibrous support while denitrifiers were dominant in the surface biofilm attached to the support. Simultaneous organic carbon removal and nitrification were carried out successfully in single-step treatment of domestic wastewater. The nitrification rate in the present biofilm was about 2.2 g/m2d at an air pressure of 19.6 kPa or 29.4 kPa and was comparable to that in conventional biofilm processes designed especially for nitrification.

【 授权许可】

Unknown