Nitrification in a membrane bioreactor (MBR) for wastewater treatment

Author:

Fan X.J.1,Urbain V.2,Qian Y.3,Manem J.2,Ng W.J.4,Ong S.L.4

Affiliation:

1. Laboratory and Research Centre, SAAM, 718 Avenida do Coselheiro Borja, Macau

2. ASTRAN, Menara Keck Seng No. 203, Jalan Bukit Bintang, 55100 Kuala Lumpur, Malaysia

3. Dept. of Environmental Engineering, Tsinghua University, Beijing 100084, P. R. China

4. Dept. of Civil Engineering, National University of Singapore, Singapore 119260

Abstract

Nitrification of the MBR process for sewage treatment was investigated with a pilot scale plant in this study. Complete nitrifcation occurred where the sludge retention time (SRT) was over 5 days. The maximum nitrification rate (Rmax) of the biomass was determined with batch tests and was found to be around 1.71 – 2.0 mgNO3--N/gVSS-h. Nitrification was affected more by the influent C/N ratio than SRT.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

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