Effect of supplementary carbon addition in the treatment of low C/N high-technology industrial wastewater by MBR

Mathava Kumar; Pei Yun Lee; Toshikazu Fukusihma; Liang Ming Whang; Jih Gaw Lin

doi:10.1016/j.biortech.2011.12.102

Effect of supplementary carbon addition in the treatment of low C/N high-technology industrial wastewater by MBR

Mathava Kumar, Pei Yun Lee, Toshikazu Fukusihma, Liang Ming Whang, Jih Gaw Lin

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

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).

Original language	English
Pages (from-to)	148-153
Number of pages	6
Journal	Bioresource technology
Volume	113
DOIs	https://doi.org/10.1016/j.biortech.2011.12.102
Publication status	Published - 2012 Jun 1

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

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title = "Effect of supplementary carbon addition in the treatment of low C/N high-technology industrial wastewater by MBR",

abstract = "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).",

author = "Mathava Kumar and Lee, {Pei Yun} and Toshikazu Fukusihma and Whang, {Liang Ming} and Lin, {Jih Gaw}",

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AU - Kumar, Mathava

AU - Lee, Pei Yun

AU - Fukusihma, Toshikazu

AU - Whang, Liang Ming

AU - Lin, Jih Gaw

PY - 2012/6/1

Y1 - 2012/6/1

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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