Influence of membrane fouling reducers (MFRs) on filterability of disperse mixed liquor of Jet Loop Bioreactors

Derya Yuksel Koseoglu-Imer; Nadir Dizge; Ahmet Karagunduz; Bulent Keskinler

doi:10.1016/j.biortech.2011.04.024

Influence of membrane fouling reducers (MFRs) on filterability of disperse mixed liquor of Jet Loop Bioreactors

Derya Yuksel Koseoglu-Imer, Nadir Dizge, Ahmet Karagunduz^*, Bulent Keskinler

^*Corresponding author for this work

Gebze Technical University

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The effects of membrane fouling reducers (MFRs) (the cationic polyelectrolyte (CPE) and FeCI₃) on membrane fouling were studied in a lab-scale jet loop submerged membrane bioreactor (JL-SMBR) system. The optimum dosages of MFRs (CPE dosage=20mgg^-1MLSS, FeCI₃ dosage=14mgg^-1MLSS) were continuously fed to JL-SMBR system. The soluble and bound EPS concentrations as well as MLSS concentration in the mixed liquor of JL-SMBR were not changed substantially by the addition of MFRs. However, significant differences were observed in particle size and relative hydrophobicity. Filtration tests were performed by using different membrane types (polycarbonate (PC) and nitrocellulose mixed ester (ME)) and various pore sizes (0.45-0.22-0.1μm). The steady state fluxes (J_ss) of membranes increased at all membranes after MFRs addition to JL-SMBR. The filtration results showed that MFRs addition was an effective approach in terms of improvement in filtration performance for both membrane types.

Original language	English
Pages (from-to)	6843-6849
Number of pages	7
Journal	Bioresource Technology
Volume	102
Issue number	13
DOIs	https://doi.org/10.1016/j.biortech.2011.04.024
Publication status	Published - Jul 2011
Externally published	Yes

Funding

This study was financially supported by the TUBITAK, the Scientific and Technological Research Council of Turkey (Project No: 108Y129).

Funders	Funder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	108Y129

Keywords

Extracellular polymeric substances (EPS)
Jet loop bioreactor (JLBR)
Membrane fouling
Membrane fouling reducer (MFR)

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10.1016/j.biortech.2011.04.024

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abstract = "The effects of membrane fouling reducers (MFRs) (the cationic polyelectrolyte (CPE) and FeCI3) on membrane fouling were studied in a lab-scale jet loop submerged membrane bioreactor (JL-SMBR) system. The optimum dosages of MFRs (CPE dosage=20mgg-1MLSS, FeCI3 dosage=14mgg-1MLSS) were continuously fed to JL-SMBR system. The soluble and bound EPS concentrations as well as MLSS concentration in the mixed liquor of JL-SMBR were not changed substantially by the addition of MFRs. However, significant differences were observed in particle size and relative hydrophobicity. Filtration tests were performed by using different membrane types (polycarbonate (PC) and nitrocellulose mixed ester (ME)) and various pore sizes (0.45-0.22-0.1μm). The steady state fluxes (Jss) of membranes increased at all membranes after MFRs addition to JL-SMBR. The filtration results showed that MFRs addition was an effective approach in terms of improvement in filtration performance for both membrane types.",

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Influence of membrane fouling reducers (MFRs) on filterability of disperse mixed liquor of Jet Loop Bioreactors

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