Low dose powdered activated carbon addition at high sludge retention times to reduce fouling in membrane bioreactors

Maxime Remy, P. van der Marel, A. Zwijnenburg, Wim Rulkens, Hardy Temmink

Research output: Contribution to journalArticleAcademic

52 Citations (Scopus)

Abstract

The addition of a low concentration of PAC (0.5 g L−1 of sludge, i.e. a dose of 4 mg L−1 of wastewater), in combination with a relatively long SRT (50 days), to improve membrane filtration performance was investigated in two pilot-scale MBRs treating real municipal wastewater. Continuous filterability tests at high flux showed the possibility to run for 18 h at 72 L m−2 h−1 and 180 h at 50 L m−2 h−1, while significant fouling occurred without PAC. In addition, measurements of the critical flux showed an increase of 10% for this strategy. Low dosage and high retention time makes it feasible and cost effective. Further advantages with regard to permeate quality and possible micropollutants removal are currently under investigation.
Original languageUndefined
Pages (from-to)345-350
JournalWater research
Volume43
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • Powdered activated carbon
  • Membrane fouling
  • Activated sludge
  • IR-80092
  • Membrane bioreactor

Cite this

Remy, Maxime ; van der Marel, P. ; Zwijnenburg, A. ; Rulkens, Wim ; Temmink, Hardy. / Low dose powdered activated carbon addition at high sludge retention times to reduce fouling in membrane bioreactors. In: Water research. 2009 ; Vol. 43, No. 2. pp. 345-350.
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abstract = "The addition of a low concentration of PAC (0.5 g L−1 of sludge, i.e. a dose of 4 mg L−1 of wastewater), in combination with a relatively long SRT (50 days), to improve membrane filtration performance was investigated in two pilot-scale MBRs treating real municipal wastewater. Continuous filterability tests at high flux showed the possibility to run for 18 h at 72 L m−2 h−1 and 180 h at 50 L m−2 h−1, while significant fouling occurred without PAC. In addition, measurements of the critical flux showed an increase of 10{\%} for this strategy. Low dosage and high retention time makes it feasible and cost effective. Further advantages with regard to permeate quality and possible micropollutants removal are currently under investigation.",
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Low dose powdered activated carbon addition at high sludge retention times to reduce fouling in membrane bioreactors. / Remy, Maxime; van der Marel, P.; Zwijnenburg, A.; Rulkens, Wim; Temmink, Hardy.

In: Water research, Vol. 43, No. 2, 2009, p. 345-350.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Low dose powdered activated carbon addition at high sludge retention times to reduce fouling in membrane bioreactors

AU - Remy, Maxime

AU - van der Marel, P.

AU - Zwijnenburg, A.

AU - Rulkens, Wim

AU - Temmink, Hardy

PY - 2009

Y1 - 2009

N2 - The addition of a low concentration of PAC (0.5 g L−1 of sludge, i.e. a dose of 4 mg L−1 of wastewater), in combination with a relatively long SRT (50 days), to improve membrane filtration performance was investigated in two pilot-scale MBRs treating real municipal wastewater. Continuous filterability tests at high flux showed the possibility to run for 18 h at 72 L m−2 h−1 and 180 h at 50 L m−2 h−1, while significant fouling occurred without PAC. In addition, measurements of the critical flux showed an increase of 10% for this strategy. Low dosage and high retention time makes it feasible and cost effective. Further advantages with regard to permeate quality and possible micropollutants removal are currently under investigation.

AB - The addition of a low concentration of PAC (0.5 g L−1 of sludge, i.e. a dose of 4 mg L−1 of wastewater), in combination with a relatively long SRT (50 days), to improve membrane filtration performance was investigated in two pilot-scale MBRs treating real municipal wastewater. Continuous filterability tests at high flux showed the possibility to run for 18 h at 72 L m−2 h−1 and 180 h at 50 L m−2 h−1, while significant fouling occurred without PAC. In addition, measurements of the critical flux showed an increase of 10% for this strategy. Low dosage and high retention time makes it feasible and cost effective. Further advantages with regard to permeate quality and possible micropollutants removal are currently under investigation.

KW - Powdered activated carbon

KW - Membrane fouling

KW - Activated sludge

KW - IR-80092

KW - Membrane bioreactor

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DO - 10.1016/j.watres.2008.10.033

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