A comparative study on simultaneous recovery of phosphorus and alginate-like exopolymers from bacterial and algal-bacterial aerobic granular sludges : Effects of organic loading rate

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

2 Scopus Citations
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Author(s)

  • Xingyu Chen
  • Jixiang Wang
  • Qian Wang
  • Zejiao Li
  • Tian Yuan
  • Zhongfang Lei
  • Zhenya Zhang
  • Kazuya Shimizu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number127343
Journal / PublicationBioresource Technology
Volume357
Online published21 May 2022
Publication statusPublished - Aug 2022

Abstract

The effects of organic loading rate (OLR) on simultaneous phosphorus (P) and alginate-like exopolymers (ALE) recovery from bacterial aerobic granular sludge (AGS) and algal-bacterial AGS were examined and compared during 70 days’ operation. With the increase of OLR (0.6–1.2 g COD/(L·day)), both AGS showed good settleability and granular strength with P bioavailability > 92% (Stage III). The moderate increase in OLR had a positive influence on simultaneous recovery of P and ALE. On day 60, the contents of ALE and guluronic acid/guluronic acid (GG) blocks reached the highest in algal-bacterial AGS, about 13.37 and 2.13 mg/g-volatile suspended solids (VSS), respectively. Meanwhile, about daily 0.55 kg of P is estimated to be recovered from the wastewater treatment plant with a treatment capacity of 10,000 m3/day. P mass balance analysis during ALE extraction from both AGS was conducive to further evaluation of P removal pathway and its application potentials.

Research Area(s)

  • Algal-bacterial aerobic granular sludge, Alginate-like exopolymers, Organic loading rate, Phosphorus accumulation, Resource recovery

Citation Format(s)

A comparative study on simultaneous recovery of phosphorus and alginate-like exopolymers from bacterial and algal-bacterial aerobic granular sludges : Effects of organic loading rate. / Chen, Xingyu; Wang, Jixiang; Wang, Qian; Li, Zejiao; Yuan, Tian; Lei, Zhongfang; Zhang, Zhenya; Shimizu, Kazuya; Lee, Duu-Jong.

In: Bioresource Technology, Vol. 357, 127343, 08.2022.

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