Performance of anammox UASB reactor treating low strength wastewater under moderate and low temperatures

被引：145
|
作者：
Ma, Bin [1 ,3 ]
Peng, Yongzhen [1 ,3 ]
Zhang, Shujun [2 ]
Wang, Junmin [1 ]
Gan, Yiping [2 ]
Chang, Jiang [2 ]
Wang, Shuying [1 ]
Wang, Shanyun [3 ]
Zhu, Guibing [4 ]
机构：
[1] Beijing Univ Technol, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
[2] Beijing Drainage Grp Co Ltd, Beijing 100022, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
[4] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Qual, Beijing 100864, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2013年 / 129卷
基金：
中国国家自然科学基金;
关键词：
Anammox; Low strength wastewater; Low temperature; Nitrogen removal; Granular sludge; ANAEROBIC AMMONIUM OXIDATION; AUTOTROPHIC NITROGEN REMOVAL; OXIDIZING BACTERIA; GRANULAR SLUDGE; IDENTIFICATION; EMISSION; OXIDE; N-2;
D O I：
10.1016/j.biortech.2012.11.025
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
An integrated approach to enhance and maintain high anammox activity and abundance in an upflow anaerobic sludge blanket (UASB) treating low strength wastewater under moderate and low temperatures was developed. A quantitative PCR assay showed the abandance of anammox bacteria to be 1.68 +/- 0.08 x 10(9) copies/ml in mixed liquor when the temperature was 30 degrees C and was maintained at the level of 1.93 +/- 0.41 x 10(9) copies/ml in mixed liquor at 16 degrees C. A nitrogen removal rate (NRR) of up to 5.72 kg N/m(3)/d was achieved with a hydraulic retention time (HRT) of 0.12 h at 30 degrees C, while nitrite and ammonium removal efficiencies were 94.35% and 92.81%, respectively. NRR decreased with a decrease in temperature and was maintained at 2.28 kg N/m(3)/d with an HRT of 0.28 h when at 16 degrees C, while nitrite and ammonium removal efficiencies were 92.31% and 78.45%, respectively. The emission rate of the greenhouse gas N2O was below 0.006% of the NRR in the anammox UASB reactor treating low strength wastewater. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：606 / 611
页数：6
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