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Author:

Li, J (Li, J.) | Xing, XH (Xing, XH.) | Wang, BZ (Wang, BZ.)

Indexed by:

EI Scopus SCIE

Abstract:

Sequencing batch reactor (SBR) of biofilm formed on fibrous carriers was effective for phosphorus removal from wastewater when conditions included a 30% packing ratio for the carriers and 9 h hydraulic retention time (3 h for the anaerobic reaction phase and 6 h for the aerobic reaction phase). After 6 months of operation at chemical oxygen demand (COD) loading of 1.00 kg COD/m(3) per day, the biomass concentration in the biofilm reached a high level of 8855 mg/l in terms of MLSS and 5532 mg/l in terms of MLVSS, while as the suspended biomass concentration in the liquid phase of the reactor, it was almost 60 mg/l in terms of MLSS. In every cycle, phosphorus removal was achieved by removing the biomass detached from the biofilm (excess sludge) after 20 min sedimentation. When the influent COD loading rate increased from 0.27 to 1.32 kg COD/m(3) per day, the phosphorus removal efficiency surpassed 90%, and this process showed a strong tolerance for the increase of COD loading. The dominant bacterial species were found to be Pseudomonas, Aeromonas and Bacillus. The excess sludge detached from the biofilm had a high phosphorus content of 5.67% (w/w) in dry biomass and good settling performance with an SVI of 99.5-103.8 ml/g. (C) 2003 Published by Elsevier Science B.V.

Keyword:

sequencing batch reactor biological phosphorus removal biofilm process wastewater treatment

Author Community:

  • [ 1 ] Beijing Univ Technol, Sch Civil Engn & Architecture, Beijing 100022, Peoples R China
  • [ 2 ] Tsing Hua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
  • [ 3 ] Harbin Univ Technol, Sch Municipal & Environm Engn, Harbin 150008, Peoples R China

Reprint Author's Address:

  • [Li, J]Beijing Univ Technol, Sch Civil Engn & Architecture, Beijing 100022, Peoples R China

Email:

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Source :

BIOCHEMICAL ENGINEERING JOURNAL

ISSN: 1369-703X

Year: 2003

Issue: 3

Volume: 16

Page: 279-285

3 . 9 0 0

JCR@2022

ESI Discipline: BIOLOGY & BIOCHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 53

SCOPUS Cited Count: 68

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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