Application of quorum quenching bacteria entrapping sheets to enhance biofouling control in a membrane bioreactor with a hollow fiber module

Chang Hyun Nahm; Dong Chan Choi; Hyeokpil Kwon; Seonki Lee; Sang Hyun Lee; Kibaek Lee; Chung Hak Lee; Kwang Ho Choo; Jung Kee Lee; Pyung Kyu Park

doi:10.1016/j.memsci.2016.12.046

Application of quorum quenching bacteria entrapping sheets to enhance biofouling control in a membrane bioreactor with a hollow fiber module

Chang Hyun Nahm, Dong Chan Choi, Hyeokpil Kwon, Seonki Lee, Sang Hyun Lee, Kibaek Lee, Chung Hak Lee, Kwang Ho Choo, Jung Kee Lee, Pyung Kyu Park

Department of Environmental Engineering

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

67 Scopus citations

Abstract

Quorum quenching (QQ) has been recognized as an innovative approach for biofouling control in membrane bioreactors (MBRs). Recently, QQ bacteria entrapping beads (QQ-beads) have been developed and verified to have excellent anti-biofouling potential in a pilot-scale MBR with flat-sheet membrane modules. In this study, considering the dense structure of hollow fiber (HF) bundles into which QQ-beads can hardly penetrate, QQ bacteria entrapping sheets (QQ-sheets) were developed as a new shape of QQ-media suitable for MBRs with HF modules. In a lab-scale MBR, QQ-sheets with a thickness of 0.5 mm exhibited a greater physical washing effect than did QQ-beads with a diameter of 3.5 mm because the former collided with membrane surfaces at the inner as well as the outer part of HF bundles, whereas the latter only made contact with the outer part. Moreover, QQ-sheets showed 2.5-fold greater biological QQ activity than did QQ-beads due to their greater total surface area at a fixed volume of QQ-media. These results suggest high potential for QQ-sheets to be used in MBRs with HF modules.

Original language	English
Pages (from-to)	264-271
Number of pages	8
Journal	Journal of Membrane Science
Volume	526
DOIs	https://doi.org/10.1016/j.memsci.2016.12.046
State	Published - 2017

Keywords

Hollow fiber module
Membrane biofouling
Membrane bioreactor (MBR)
Quorum quenching
Sheet

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10.1016/j.memsci.2016.12.046

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title = "Application of quorum quenching bacteria entrapping sheets to enhance biofouling control in a membrane bioreactor with a hollow fiber module",

abstract = "Quorum quenching (QQ) has been recognized as an innovative approach for biofouling control in membrane bioreactors (MBRs). Recently, QQ bacteria entrapping beads (QQ-beads) have been developed and verified to have excellent anti-biofouling potential in a pilot-scale MBR with flat-sheet membrane modules. In this study, considering the dense structure of hollow fiber (HF) bundles into which QQ-beads can hardly penetrate, QQ bacteria entrapping sheets (QQ-sheets) were developed as a new shape of QQ-media suitable for MBRs with HF modules. In a lab-scale MBR, QQ-sheets with a thickness of 0.5 mm exhibited a greater physical washing effect than did QQ-beads with a diameter of 3.5 mm because the former collided with membrane surfaces at the inner as well as the outer part of HF bundles, whereas the latter only made contact with the outer part. Moreover, QQ-sheets showed 2.5-fold greater biological QQ activity than did QQ-beads due to their greater total surface area at a fixed volume of QQ-media. These results suggest high potential for QQ-sheets to be used in MBRs with HF modules.",

keywords = "Hollow fiber module, Membrane biofouling, Membrane bioreactor (MBR), Quorum quenching, Sheet",

author = "Nahm, {Chang Hyun} and Choi, {Dong Chan} and Hyeokpil Kwon and Seonki Lee and Lee, {Sang Hyun} and Kibaek Lee and Lee, {Chung Hak} and Choo, {Kwang Ho} and Lee, {Jung Kee} and Park, {Pyung Kyu}",

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year = "2017",

doi = "10.1016/j.memsci.2016.12.046",

language = "English",

volume = "526",

pages = "264--271",

journal = "Journal of Membrane Science",

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publisher = "Elsevier B.V.",

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T1 - Application of quorum quenching bacteria entrapping sheets to enhance biofouling control in a membrane bioreactor with a hollow fiber module

AU - Nahm, Chang Hyun

AU - Choi, Dong Chan

AU - Kwon, Hyeokpil

AU - Lee, Seonki

AU - Lee, Sang Hyun

AU - Lee, Kibaek

AU - Lee, Chung Hak

AU - Choo, Kwang Ho

AU - Lee, Jung Kee

AU - Park, Pyung Kyu

PY - 2017

Y1 - 2017

N2 - Quorum quenching (QQ) has been recognized as an innovative approach for biofouling control in membrane bioreactors (MBRs). Recently, QQ bacteria entrapping beads (QQ-beads) have been developed and verified to have excellent anti-biofouling potential in a pilot-scale MBR with flat-sheet membrane modules. In this study, considering the dense structure of hollow fiber (HF) bundles into which QQ-beads can hardly penetrate, QQ bacteria entrapping sheets (QQ-sheets) were developed as a new shape of QQ-media suitable for MBRs with HF modules. In a lab-scale MBR, QQ-sheets with a thickness of 0.5 mm exhibited a greater physical washing effect than did QQ-beads with a diameter of 3.5 mm because the former collided with membrane surfaces at the inner as well as the outer part of HF bundles, whereas the latter only made contact with the outer part. Moreover, QQ-sheets showed 2.5-fold greater biological QQ activity than did QQ-beads due to their greater total surface area at a fixed volume of QQ-media. These results suggest high potential for QQ-sheets to be used in MBRs with HF modules.

AB - Quorum quenching (QQ) has been recognized as an innovative approach for biofouling control in membrane bioreactors (MBRs). Recently, QQ bacteria entrapping beads (QQ-beads) have been developed and verified to have excellent anti-biofouling potential in a pilot-scale MBR with flat-sheet membrane modules. In this study, considering the dense structure of hollow fiber (HF) bundles into which QQ-beads can hardly penetrate, QQ bacteria entrapping sheets (QQ-sheets) were developed as a new shape of QQ-media suitable for MBRs with HF modules. In a lab-scale MBR, QQ-sheets with a thickness of 0.5 mm exhibited a greater physical washing effect than did QQ-beads with a diameter of 3.5 mm because the former collided with membrane surfaces at the inner as well as the outer part of HF bundles, whereas the latter only made contact with the outer part. Moreover, QQ-sheets showed 2.5-fold greater biological QQ activity than did QQ-beads due to their greater total surface area at a fixed volume of QQ-media. These results suggest high potential for QQ-sheets to be used in MBRs with HF modules.

KW - Hollow fiber module

KW - Membrane biofouling

KW - Membrane bioreactor (MBR)

KW - Quorum quenching

KW - Sheet

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JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Application of quorum quenching bacteria entrapping sheets to enhance biofouling control in a membrane bioreactor with a hollow fiber module

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Keywords

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