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Utilization of a combined metabolic uncoupler to reduce sludge yield in sequence batch reactor system

  • Harbin Institute of Technology Shenzhen
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper is to explore the feasibility of a novel combined uncoupler of 3,3,4,5-tetrachlorosalicylanilide (TCS) and 2,4,6-trichlorophenol (TCP) on excess activated sludge reduction compared to single dose of TCS and TCP. Four sequenced batch reactors (SBR) were continuously operated during two-month period dosed by different concentration of metabolic uncoupler. The comparative experiments showed that the combined uncoupler could effectively limit sludge yield by approximately 52%, followed by TCS, TCP, without obvious affecting the TOC removal rate and SVI value. At the end of the operation, the variation of zeta potential clearly indicated that uncoupler dosing affected the flocculability of activated sludge. The study demonstrated applying a combined uncoupler was feasible and promising technique to reduce sludge yield in SBR.

Original languageEnglish
Title of host publicationAdvances in Environmental Technologies
Pages2808-2812
Number of pages5
DOIs
StatePublished - 2013
Event2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013 - Guilin, China
Duration: 19 Apr 201321 Apr 2013

Publication series

NameAdvanced Materials Research
Volume726-731
ISSN (Print)1022-6680

Conference

Conference2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013
Country/TerritoryChina
CityGuilin
Period19/04/1321/04/13

Keywords

  • Metabolic uncoupler
  • SOUR
  • Sludge reduction
  • Zeta potential

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