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作者:

Wang, Bo (Wang, Bo.) (学者:王波) | Guo, Yuanyuan (Guo, Yuanyuan.) | Zhao, Mengyue (Zhao, Mengyue.) | Li, Baikun (Li, Baikun.) | Peng, Yongzhen (Peng, Yongzhen.) (学者:彭永臻)

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摘要:

Energy savings via achieving the reduction of aeration and excess sludge is required to realize energy self-sufficiency in wastewater treatment plants. A novel partial nitritation + simultaneous anammox denitrification and sludge fermentation (PN + SADF) process was operated for nearly two years, during which simultaneous energy-efficient nitrogen removal and waste activated sludge (WAS) reduction was achieved, with a stable nitrogen removal efficiency of 80% and external WAS reduction of 40%-50%. In the PN reactor, presence of ammonia oxidizing bacteria and absence of nitrite oxidizing bacteria ensured the stable nitritation. In the SADF reactor, nitrogen was removed via denitrification and anammox by using nutrients and organics released from WAS solubilization. Comparable performance of the SADF reactor at ambient temperature (12-32 degrees C) to that at 30 degrees C indicated a practical application potential for the PN + SADF process. An initial estimation of a full-scale PN + SADF process serving a population of 100000 showed that it could save economy and energy in comparison with conventional nitrification-denitrification process. Despite some challenges in implementation, this paper highlights the potential implication for sustaining mainstream nitritation-anammox towards energy-efficient operation with excess sludge reutilization. (C) 2018 Elsevier Ltd. All rights reserved.

关键词:

Partial nitritation Sludge reutilization Anammox Excess sludge Energy saving

作者机构:

  • [ 1 ] [Wang, Bo]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China
  • [ 2 ] [Guo, Yuanyuan]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Mengyue]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Baikun]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China
  • [ 5 ] [Peng, Yongzhen]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China

通讯作者信息:

  • 彭永臻

    [Peng, Yongzhen]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Engn Res Ctr Beijing, Beijing 100124, Peoples R China

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来源 :

CHEMOSPHERE

ISSN: 0045-6535

年份: 2019

卷: 218

页码: 705-714

8 . 8 0 0

JCR@2022

ESI学科: ENVIRONMENT/ECOLOGY;

ESI高被引阀值:167

JCR分区:1

被引次数:

WoS核心集被引频次: 32

SCOPUS被引频次: 33

ESI高被引论文在榜: 0 展开所有

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