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

被引：52

作者：

Kumar, Mathava ^{[2
]}

Lee, Pei-Yun ^{[1
]}

Fukusihma, Toshikazu ^{[3
]}

Whang, Liang-Ming ^{[3
,4
,5
]}

Lin, Jih-Gaw ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Environm Engn, Hsinchu 30010, Taiwan

[2] Natl Inst Technol Calicut, Dept Civil Engn, Kozhikode 673601, Kerala, India

[3] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 30701, Taiwan

[4] Natl Cheng Kung Univ, SERC, Tainan 30701, Taiwan

[5] Natl Cheng Kung Univ, RCETS, Tainan 30701, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 113卷

关键词：

Membrane bioreactor; Supplementary carbon; Wastewater treatment; Denitrification; C/N ratio; BIOLOGICAL NITROGEN REMOVAL; AERATED MEMBRANE BIOREACTOR; COD/N RATIO; POPULATIONS; PCR; BACTERIAL; SLUDGE; GENES; SOIL;

D O I：

10.1016/j.biortech.2011.12.102

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 302 days under different C/N (BODL/NH4+-N) ratios, i.e. 0.9-1 to 20 days, 1.6-21 to 42 days, 2.9-43 to 82 days. 3.6-83 to 141 days, 4.8-165 to 233 days and 9.3-240 to 302 days. Irrespective of the C/N ratios investigated, SS and BOD5 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 10 times 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). (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：148 / 153

页数：6

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