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作者:

Wang, Wenqiang (Wang, Wenqiang.) | Li, Dong (Li, Dong.) | Li, Shuai (Li, Shuai.) | Zeng, Huiping (Zeng, Huiping.) | Zhang, Jie (Zhang, Jie.) (学者:张杰)

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摘要:

The characteristics and mechanism of hollow anammox granular sludge with different settling property were investigated through the analysis of morphology, structure and microbial community. According to settling property, the granules from an anammox continuous stirred-tank reactor were classified into settling granules (SG) benign floating granules (BFG) and malignant floating granules (MFG). As the settling performance deteriorated, the extracellular polymeric substances (EPS) content of the granules increased. The microstructure showed that the number of pores changed significantly for SG, BFG, and MFG. Transfer distance increased with increasing particle size. The analysis of EPS and rheological properties indicated that EPS is a key driving force of floating and proliferation in the lifecycle of hollow anammox granule. The results of microbial community revealed that EPS-hydrolyzing bacteria were biological factors that weaken structure strength of granule.

关键词:

Tunnel EPS-hydrolyzing bacteria Rheological properties Anammox

作者机构:

  • [ 1 ] [Wang, Wenqiang]Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
  • [ 2 ] [Li, Dong]Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
  • [ 3 ] [Li, Shuai]Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
  • [ 4 ] [Zeng, Huiping]Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
  • [ 5 ] [Zhang, Jie]Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
  • [ 6 ] [Zhang, Jie]Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

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来源 :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN: 2213-2929

年份: 2022

期: 2

卷: 10

7 . 7

JCR@2022

7 . 7 0 0

JCR@2022

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 12

SCOPUS被引频次: 17

ESI高被引论文在榜: 0 展开所有

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