TY - JOUR
T1 - Effect of supplementary carbon addition in the treatment of low C/N high-technology industrial wastewater by MBR
AU - Kumar, Mathava
AU - Lee, Pei Yun
AU - Fukusihma, Toshikazu
AU - Whang, Liang Ming
AU - Lin, Jih Gaw
N1 - Funding Information:
This research was funded by AXLON International Engineering Corporation . We would like to express our gratitude for staves of AXLON for assisting in the pilot scale MBR work and also for solving the technical issues in MBR plant operation during the course of this work. We also thank Century Environtech Co. Ltd. and AquaLab Co. Ltd. for providing the membrane modules.
PY - 2012/6
Y1 - 2012/6
N2 - The effect of supplementary carbon addition for the treatment of high-technology industrial wastewater in a membrane bioreactor (MBR) was investigated. The MBR was operated for 302days under different C/N (BODL/NH4+-N) ratios, i.e. 0.9-1 to 20days, 1.6-21 to 42days, 2.9-43 to 82days, 3.6-83 to 141days, 4.8-165 to 233days and 9.3-240 to 302days. Irrespective of the C/N ratios investigated, SS and BOD 5 removal efficiencies were above 95% and above 80% COD removal efficiency was observed. In addition, complete nitrification was observed throughout the investigation. However, denitrification and total nitrogen removal efficiencies reached their maximum values at the highest C/N ratio (9.3) investigated. Real-time PCR analysis revealed 10times higher ammonia oxidizing bacteria to total bacteria ratio under the highest C/N ratio condition (9.3) compared to the low C/N ratio condition (1.6).
AB - The effect of supplementary carbon addition for the treatment of high-technology industrial wastewater in a membrane bioreactor (MBR) was investigated. The MBR was operated for 302days under different C/N (BODL/NH4+-N) ratios, i.e. 0.9-1 to 20days, 1.6-21 to 42days, 2.9-43 to 82days, 3.6-83 to 141days, 4.8-165 to 233days and 9.3-240 to 302days. Irrespective of the C/N ratios investigated, SS and BOD 5 removal efficiencies were above 95% and above 80% COD removal efficiency was observed. In addition, complete nitrification was observed throughout the investigation. However, denitrification and total nitrogen removal efficiencies reached their maximum values at the highest C/N ratio (9.3) investigated. Real-time PCR analysis revealed 10times higher ammonia oxidizing bacteria to total bacteria ratio under the highest C/N ratio condition (9.3) compared to the low C/N ratio condition (1.6).
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U2 - 10.1016/j.biortech.2011.12.102
DO - 10.1016/j.biortech.2011.12.102
M3 - Article
C2 - 22300636
AN - SCOPUS:84862782074
SN - 0960-8524
VL - 113
SP - 148
EP - 153
JO - Agricultural Wastes
JF - Agricultural Wastes
ER -
