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Author:

Tang, Xiaoxue (Tang, Xiaoxue.) | Wang, Chuanxin (Wang, Chuanxin.) | Xu, Zhubing (Xu, Zhubing.) | Peng, Yongzhen (Peng, Yongzhen.) (Scholars:彭永臻)

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EI Scopus PKU CSCD

Abstract:

The development of anaerobic ammonia oxidation (anammox) process, makes it possible to achieve domestic wastewater treatment with low energy consumptions. And the recovery of energy and resources from domestic wastewater can be realized through biological adsorption. The enhanced biological phosphorus removal (EBPR) system was successfully started under sludge retention time (SRT) of 2 d. The SVI of activity sludge was only 50 and the effluent of EBPR system was stable under fluctuant influent. While, the carbon content in EBPR system sludge was only 37%. Stable operation of organic matter removal SBR was achieved by decreasing the aerobic hydraulic residence time (HRT) to 40 min. The carbon content of sludge was then increased to 48%. 93.8% of the removed COD was achieved during the anaerobic phase which meant the organic matter was mainly removed by the biological adsorption. Due to the consumption of organic matter by heterotrophic bacteria and the adsorption of phosphorus by PAO occurred simultaneously, when the C/P of domestic wastewater was relatively low, it was difficult to recover both organic matter and phosphorus at the same time. To enhance the recovery of organic matter, HRT of aerobic phase should be decreased and the chemical removal method should be applied to remove part of the phosphorus. The anaerobic mixing time, aeration time and sludge age should be optimized in order to achieve a higher efficient recovery of C and P. © All Rights Reserved.

Keyword:

Chemicals removal (water treatment) Phosphorus Organic compounds Chemical oxygen demand Wastewater treatment Ammonia Carbon Recovery Effluents Nitrogen removal Biological water treatment Adsorption Energy utilization Biogeochemistry

Author Community:

  • [ 1 ] [Tang, Xiaoxue]Beijing Key Laboratory of Water Quality Science and Water Environment Recovery, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Wang, Chuanxin]Beijing Key Laboratory of Water Quality Science and Water Environment Recovery, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Xu, Zhubing]Beijing Key Laboratory of Water Quality Science and Water Environment Recovery, Beijing University of Technology, Beijing 100124, China
  • [ 4 ] [Peng, Yongzhen]Beijing Key Laboratory of Water Quality Science and Water Environment Recovery, Beijing University of Technology, Beijing 100124, China

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Source :

CIESC Journal

ISSN: 0438-1157

Year: 2013

Issue: 8

Volume: 64

Page: 3017-3022

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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