Nitrogen removal via nitrite in a partial nitrification sequencing batch biofilm reactor treating high strength ammonia wastewater and its greenhouse gas emission

被引：68

作者：

Wei, Dong ^{[1
]}

Zhang, Keyi ^{[1
]}

Ngo, Huu Hao ^{[2
]}

Guo, Wenshan ^{[2
]}

Wang, Siyu ^{[1
]}

Li, Jibin ^{[1
]}

Han, Fei ^{[1
]}

Du, Bin ^{[1
]}

Wei, Qin ^{[3
]}

机构：

[1] Univ Jinan, Sch Resources & Environm, Jinan 250022, Peoples R China

[2] Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

[3] Univ Jinan, Sch Chem & Chem Engn, Key Lab Chem Sensing & Anal Univ Shandong, Jinan 250022, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 230卷

关键词：

Sequencing batch biofilm reactor; Partial nitrification; Extracellular polymeric substances (EPS); Excitation-emission matrix (EEM); Greenhouse gas emission; EXTRACELLULAR POLYMERIC SUBSTANCES; AEROBIC GRANULAR SLUDGE; ACTIVATED-SLUDGE; OXIDE EMISSIONS; LOW-TEMPERATURE; EPS; BED; DENITRIFICATION; PERFORMANCE; RICH;

D O I：

10.1016/j.biortech.2017.01.033

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In present study, the feasibility of partial nitrification (PN) process achievement and its greenhouse gas emission were evaluated in a sequencing batch biofilm reactor (SBBR). After 90 days' operation, the average effluent NH4+-N removal efficiency and nitrite accumulation rate of PN-SBBR were high of 98.2% and 87.6%, respectively. Both polysaccharide and protein contents were reduced in loosely bound extracellular polymeric substances (LB-EPS) and tightly bound EPS (TB-EPS) during the achievement of PN-biofilm. Excitation-emission matrix spectra implied that aromatic protein-like, tryptophan protein-like and humic acid-like substances were the main compositions of both kinds of EPS in seed sludge and PN-biofilm. According to typical cycle, the emission rate of CO2 had a much higher value than that of N2O, and their total amounts per cycle were 67.7 and 16.5 mg, respectively. Free ammonia (FA) played a significant role on the inhibition activity of nitrite-oxidizing bacteria and the occurrence of nitrite accumulation. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：49 / 55

页数：7

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