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2010•Unpublished venueRequires access

Influence of PAC and particulates on natural organic matter membrane fouling during ultrafiltration process

Wang Jun

Open publisher page 1 citations

Abstract

This study focused on the influence of powdered activated carbon(PAC) and particulates on immersed hollow-fiber ultrafiltration membrane fouling by natural organic mater.The change in the membrane specific flux and trans-membrane pressure was used to indicate the fouling when treating water contaminate with pollutants with UF and PAC-UF treatments.The membrane specific flux decreased 0.06 L/(h·m2·kPa) after 25 mg/L PAC was added and 0.14 L/(h·m2·kPa) after 100 mg/L PAC was added compared with ultrafiltration of tap water.20,50,100 mg/L PAC addition reduced the TMP by 0.003 1,0.002 3,0.001 7 kPa/min.Kaolinite in natural organic mater contaminated source water improved the normalized membrane flux by 5% for the UF treatment and 2.6% for the PAC-UF treatment after air-water backwashing.

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What this paper is about

This study focused on the influence of powdered activated carbon(PAC) and particulates on immersed hollow-fiber ultrafiltration membrane fouling by natural organic mater.The change in the membrane specific flux and trans-membrane pressure was used to indicate the fouling when treating water contaminate with pollutants with UF and PAC-UF treatments.The membrane specific flux decreased 0.06 L/(h·m2·kPa) after 25 mg/L PAC was added and 0.14 L/(h·m2·kPa) after 100 mg/L PAC was added compared with ultrafiltration of tap water.20,50,100 mg/L PAC addition reduced the TMP by 0.003 1,0.002 3,0.001 7 kPa/min.Kaolinite in natural organic mater contaminated source water improved the normalized membrane flux by 5% for the UF treatment and 2.6% for the PAC-UF treatment after air-water backwashing.

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Available abstract

This study focused on the influence of powdered activated carbon(PAC) and particulates on immersed hollow-fiber ultrafiltration membrane fouling by natural organic mater.The change in the membrane specific flux and trans-membrane pressure was used to indicate the fouling when treating water contaminate with pollutants with UF and PAC-UF treatments.The membrane specific flux decreased 0.06 L/(h·m2·kPa) after 25 mg/L PAC was added and 0.14 L/(h·m2·kPa) after 100 mg/L PAC was added compared with ultrafiltration of tap water.20,50,100 mg/L PAC addition reduced the TMP by 0.003 1,0.002 3,0.001 7 kPa/min.Kaolinite in natural organic mater contaminated source water improved the normalized membrane flux by 5% for the UF treatment and 2.6% for the PAC-UF treatment after air-water backwashing.

Key concepts: Backwashing, Ultrafiltration (renal), Powdered activated carbon treatment, Membrane fouling, Fouling, Membrane, Particulates, Chemistry

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