The regulation and control strategies of a sequencing batch reactor for simultaneous nitrification and denitrification at different temperatures

被引：78

作者：

Guo, Jingbo ^{[1
]}

Zhang, Lanhe ^{[2
]}

Chen, Wei ^{[1
]}

Ma, Fang ^{[3
]}

Liu, Honglei ^{[2
]}

Tian, Yu ^{[2
]}

机构：

[1] Northeast Dianli Univ, Sch Civil & Architecture Engn, Jilin 132012, Peoples R China

[2] Northeast Dianli Univ, Sch Chem Engn, Jilin 132012, Peoples R China

[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 133卷

关键词：

Simultaneous nitrification and denitrification; Sequencing batch reactor; Temperature; Regulation and control strategies; BIOLOGICAL NITROGEN REMOVAL; POLYMERIC SUBSTANCES EPS; ACTIVATED-SLUDGE; BIOFILM; PERFORMANCE; CARBON; RATIO; OPTIMIZATION; AMMONIA; TIME;

D O I：

10.1016/j.biortech.2013.01.026

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The performance of a sequencing batch reactor for simultaneous nitrification and denitrification (SBR-SND) was investigated under 5-30 degrees C and strategies against temperature influences were proposed. Aeration of 8, 7, 7 and 6 h were sufficient for 5 +/- 2, 10 +/- 2, 20 +/- 2 and 30 +/- 2 degrees C, respectively. Further extension was insubstantial, only increased the aeration cost. The adjustment of C/N ratio to offset the temperature impacts was not remarkable. Prolonged sludge retention time lessened the influences of low temperature but deteriorated the system at high temperature. The oxidation reduction potential, the dissolved oxygen concentration, the sludge volume index and the extracellular polymeric substances amount changed with temperature alterations and thus affected the system performance. In conclusion, measures should be taken for temperature oscillations and the regulation and control of the operational parameters could alleviate the influences of temperature on the performances of the SBR-SND system. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：59 / 67

页数：9

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