Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor

Gerald Matar; G. Gonzalez-Gil; H. Maab; Suzana Pereira Nunes; J.S. Vrouwenvelder; Pascal Saikaly

Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor

Gerald Matar, G. Gonzalez-Gil, H. Maab, Suzana Pereira Nunes, J.S. Vrouwenvelder, Pascal Saikaly

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Membrane surface modification is attracting more attention to mitigate biofouling in membrane bioreactors (MBRs). Five membranes differing in chemistry and hydrophobic/hydrophilic potential were run in parallel in a lab-scale MBR under the same conditions. Membranes were sampled after 1, 10, 20 and 30 days of MBR operation with synthetic wastewater. Subsequently, accumulated organic foulants were characterised using several chemical analytical tools. Results showed similar development of organic foulants with time, illustrating that membrane surface chemistry did not affect the selection of specific organic foulants. Multivariate analysis showed that biofilm samples clustered according to the day of sampling. The composition of organic foulants shifted from protein-like substances towards humics and polysaccharides-like substances. We propose that to control biofouling in MBRs, one should focus less on the membrane surface chemistry.

Original language	English (US)
Title of host publication	International Water Association (IWA)
State	Published - Sep 7 2015

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@inproceedings{4935a8dff85545b39364ea60289ad350,

title = "Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor",

abstract = "Membrane surface modification is attracting more attention to mitigate biofouling in membrane bioreactors (MBRs). Five membranes differing in chemistry and hydrophobic/hydrophilic potential were run in parallel in a lab-scale MBR under the same conditions. Membranes were sampled after 1, 10, 20 and 30 days of MBR operation with synthetic wastewater. Subsequently, accumulated organic foulants were characterised using several chemical analytical tools. Results showed similar development of organic foulants with time, illustrating that membrane surface chemistry did not affect the selection of specific organic foulants. Multivariate analysis showed that biofilm samples clustered according to the day of sampling. The composition of organic foulants shifted from protein-like substances towards humics and polysaccharides-like substances. We propose that to control biofouling in MBRs, one should focus less on the membrane surface chemistry.",

author = "Gerald Matar and G. Gonzalez-Gil and H. Maab and Nunes, {Suzana Pereira} and J.S. Vrouwenvelder and Pascal Saikaly",

note = "KAUST Repository Item: Exported on 2020-10-01",

year = "2015",

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day = "7",

language = "English (US)",

booktitle = "International Water Association (IWA)",

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TY - GEN

T1 - Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor

AU - Matar, Gerald

AU - Gonzalez-Gil, G.

AU - Maab, H.

AU - Nunes, Suzana Pereira

AU - Vrouwenvelder, J.S.

AU - Saikaly, Pascal

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/9/7

Y1 - 2015/9/7

N2 - Membrane surface modification is attracting more attention to mitigate biofouling in membrane bioreactors (MBRs). Five membranes differing in chemistry and hydrophobic/hydrophilic potential were run in parallel in a lab-scale MBR under the same conditions. Membranes were sampled after 1, 10, 20 and 30 days of MBR operation with synthetic wastewater. Subsequently, accumulated organic foulants were characterised using several chemical analytical tools. Results showed similar development of organic foulants with time, illustrating that membrane surface chemistry did not affect the selection of specific organic foulants. Multivariate analysis showed that biofilm samples clustered according to the day of sampling. The composition of organic foulants shifted from protein-like substances towards humics and polysaccharides-like substances. We propose that to control biofouling in MBRs, one should focus less on the membrane surface chemistry.

AB - Membrane surface modification is attracting more attention to mitigate biofouling in membrane bioreactors (MBRs). Five membranes differing in chemistry and hydrophobic/hydrophilic potential were run in parallel in a lab-scale MBR under the same conditions. Membranes were sampled after 1, 10, 20 and 30 days of MBR operation with synthetic wastewater. Subsequently, accumulated organic foulants were characterised using several chemical analytical tools. Results showed similar development of organic foulants with time, illustrating that membrane surface chemistry did not affect the selection of specific organic foulants. Multivariate analysis showed that biofilm samples clustered according to the day of sampling. The composition of organic foulants shifted from protein-like substances towards humics and polysaccharides-like substances. We propose that to control biofouling in MBRs, one should focus less on the membrane surface chemistry.

UR - http://hdl.handle.net/10754/581343

UR - https://www.malmokongressbyra.se/kongress/download/1507_G.%20Matar.pdf

M3 - Conference contribution

BT - International Water Association (IWA)

ER -

Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor

Abstract

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