Performances and microbial characteristics of granular sludge for autotrophic nitrogen removal from synthetic and mainstream domestic sewage

被引：31
作者：
Liang, Yuhai [1 ,2 ]
Li, Dong [2 ]
Su, Qingling [2 ]
Zhang, Jie [2 ,3 ]
机构：
[1] South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
[2] Beijing Univ Technol, Key Lab Water Qual Sci & Water Environm Recovery, Beijing 100124, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2018年 / 338卷
基金：
中国国家自然科学基金;
关键词：
Anammox; CANON; Granular sludge; Mainstream sewage; SIMULTANEOUS PARTIAL NITRIFICATION; WASTE-WATER TREATMENT; BLANKET UASB REACTOR; SP NOV; DEAMMONIFICATION PROCESS; DENITRIFICATION SNAD; PARTIAL NITRITATION; CANON PROCESS; GEN; NOV; ANAMMOX;
D O I：
10.1016/j.cej.2018.01.067
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The completely autotrophic nitrogen removal over nitrite (CANON) process is an important component of energy self-sufficient sewage treatment plants, and the use of aerobic granular sludge is a profitable choice for the CANON process. In this study, the performance and microbial characteristics of CANON granular sludge were investigated for treating synthetic and mainstream domestic sewage. The average nitrogen removal rate (NRR) was 3.22 kg Nm(-3) d(-1) during the high-rate operating period with high MLSS (4.09 g L-1) and DO (similar to 1.0 mg L-1) for treating synthetic sewage. When the influent was mainstream sewage, the average NRR was 1.11 kg Nm(-3) d(-1). The effluent nitrate concentration was very low, and nitrate build-up was not found. High-throughput pyrosequencing results indicated that, Nitrosomonas and Candidatus Brocadia were the dominant genus in ammonia oxidizing bacteria (AOB) and anaerobic AOB (AAOB), respectively. The proportions of AOB and AAOB decreased during mainstream sewage treatment, but the reactor maintained good performance. The results confirmed the feasibility of using CANON granular sludge for treating mainstream sewage.
引用
收藏
页码：564 / 571
页数：8
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