Achieving stably enhanced biological phosphorus removal from aerobic granular sludge system via phosphorus rich liquid extraction during anaerobic period

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jixiang Wang
  • Zejiao Li
  • Qian Wang
  • Zhongfang Lei
  • Tian Yuan
  • Kazuya Shimizu
  • Zhenya Zhang
  • Yasuhisa Adachi
  • Rongzhi Chen

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number126439
Journal / PublicationBioresource Technology
Volume346
Online published28 Nov 2021
Publication statusPublished - Feb 2022

Abstract

In order to sustainably manage wastewater treatment plants and the environment, enhanced biological phosphorus (P) removal (EBPR) was proposed to achieve P recovery through extracting P-rich liquid (i.e., Phostrip) from the bottom of aerobic granular sludge (AGS)-based sequencing batch reactors (SBRs) under no mixing during the anaerobic phase. Results showed both tested bacterial AGS (BAGS) and algal-bacterial AGS (A-BAGS) systems stably produced low effluent P (<0.05 mg-P/L) with little impact on their organics and NH4+-N removals (>99%). The collected P-rich liquids (55–83 mg-P/L) from both systems showed great potential for P recovery of about 83.85 ± 0.57 % (BAGS) or 83.99 ± 0.77% (A-BAGS), which were contributed by the influent P (>95%) and P reserves in granules based on P balance analysis. This study suggests that the AGS-based SBRs coupling the Phostrip holds great potentials for P recovery profit and further reduction in energy consumption.

Research Area(s)

  • Algal-bacterial aerobic granular sludge, Bacterial aerobic granular sludge, Enhanced biological phosphorus removal, Phosphorus-rich liquid extraction

Citation Format(s)

Achieving stably enhanced biological phosphorus removal from aerobic granular sludge system via phosphorus rich liquid extraction during anaerobic period. / Wang, Jixiang; Li, Zejiao; Wang, Qian; Lei, Zhongfang; Yuan, Tian; Shimizu, Kazuya; Zhang, Zhenya; Adachi, Yasuhisa; Lee, Duu-Jong; Chen, Rongzhi.

In: Bioresource Technology, Vol. 346, 126439, 02.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review