Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal

Wenhai Luo; Ming Xie; Xiaoye Song; Wenshan Guo; Hao H. Ngo; John L. Zhou; Long D. Nghiem

doi:10.1016/j.biortech.2017.09.170

Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal

Wenhai Luo, Ming Xie, Xiaoye Song, Wenshan Guo, Hao H. Ngo, John L. Zhou, Long D. Nghiem

Department of Chemical Engineering

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

88 Citations (SciVal)

Abstract

In this study, we investigated the performance of an osmotic membrane bioreactor (OMBR) enabled by a novel biomimetic aquaporin forward osmosis (FO) membrane. Membrane performance and removal of 30 trace organic contaminants (TrOCs) were examined. Results show that the aquaporin FO membrane had better transport properties in comparison with conventional cellulose triacetate and polyamide thin-film composite FO membranes. In particular, the aquaporin FO membrane exhibited much lower salt permeability and thus smaller reverse salt flux, resulting in a less severe salinity build-up in the bioreactor during OMBR operation. During OMBR operation, the aquaporin FO membrane well complemented biological treatment for stable and excellent contaminant removal. All 30 TrOCs selected here were removed by over 85% regardless of their diverse properties. Such high and stable contaminant removal over OMBR operation also indicates the stability and compatibility of the aquaporin FO membrane in combination with activated sludge treatment.

Original language	English
Pages (from-to)	62-68
Number of pages	7
Journal	Bioresource Technology
Volume	249
Early online date	27 Sept 2017
DOIs	https://doi.org/10.1016/j.biortech.2017.09.170
Publication status	Published - 1 Feb 2018

Bibliographical note

Funding

This research was supported under the Australian Research Council’s Discovery Project funding scheme (Project DP140103864) and National Natural Science Foundation of China (Project 51708547). Dr. Jinguo Kang is gratefully acknowledged for his assistance with the analysis of trace organic contaminants. Appendix A

Keywords

Aquaporins
Biomimetics
Bioreactors
Membranes, Artificial
Osmosis
Water Purification

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10.1016/j.biortech.2017.09.170

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title = "Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal",

abstract = "In this study, we investigated the performance of an osmotic membrane bioreactor (OMBR) enabled by a novel biomimetic aquaporin forward osmosis (FO) membrane. Membrane performance and removal of 30 trace organic contaminants (TrOCs) were examined. Results show that the aquaporin FO membrane had better transport properties in comparison with conventional cellulose triacetate and polyamide thin-film composite FO membranes. In particular, the aquaporin FO membrane exhibited much lower salt permeability and thus smaller reverse salt flux, resulting in a less severe salinity build-up in the bioreactor during OMBR operation. During OMBR operation, the aquaporin FO membrane well complemented biological treatment for stable and excellent contaminant removal. All 30 TrOCs selected here were removed by over 85% regardless of their diverse properties. Such high and stable contaminant removal over OMBR operation also indicates the stability and compatibility of the aquaporin FO membrane in combination with activated sludge treatment.",

keywords = "Aquaporins, Biomimetics, Bioreactors, Membranes, Artificial, Osmosis, Water Purification",

author = "Wenhai Luo and Ming Xie and Xiaoye Song and Wenshan Guo and Ngo, {Hao H.} and Zhou, {John L.} and Nghiem, {Long D.}",

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AU - Luo, Wenhai

AU - Xie, Ming

AU - Song, Xiaoye

AU - Guo, Wenshan

AU - Ngo, Hao H.

AU - Zhou, John L.

AU - Nghiem, Long D.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - In this study, we investigated the performance of an osmotic membrane bioreactor (OMBR) enabled by a novel biomimetic aquaporin forward osmosis (FO) membrane. Membrane performance and removal of 30 trace organic contaminants (TrOCs) were examined. Results show that the aquaporin FO membrane had better transport properties in comparison with conventional cellulose triacetate and polyamide thin-film composite FO membranes. In particular, the aquaporin FO membrane exhibited much lower salt permeability and thus smaller reverse salt flux, resulting in a less severe salinity build-up in the bioreactor during OMBR operation. During OMBR operation, the aquaporin FO membrane well complemented biological treatment for stable and excellent contaminant removal. All 30 TrOCs selected here were removed by over 85% regardless of their diverse properties. Such high and stable contaminant removal over OMBR operation also indicates the stability and compatibility of the aquaporin FO membrane in combination with activated sludge treatment.

AB - In this study, we investigated the performance of an osmotic membrane bioreactor (OMBR) enabled by a novel biomimetic aquaporin forward osmosis (FO) membrane. Membrane performance and removal of 30 trace organic contaminants (TrOCs) were examined. Results show that the aquaporin FO membrane had better transport properties in comparison with conventional cellulose triacetate and polyamide thin-film composite FO membranes. In particular, the aquaporin FO membrane exhibited much lower salt permeability and thus smaller reverse salt flux, resulting in a less severe salinity build-up in the bioreactor during OMBR operation. During OMBR operation, the aquaporin FO membrane well complemented biological treatment for stable and excellent contaminant removal. All 30 TrOCs selected here were removed by over 85% regardless of their diverse properties. Such high and stable contaminant removal over OMBR operation also indicates the stability and compatibility of the aquaporin FO membrane in combination with activated sludge treatment.

KW - Aquaporins

KW - Biomimetics

KW - Bioreactors

KW - Membranes, Artificial

KW - Osmosis

KW - Water Purification

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Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal

Abstract

Bibliographical note

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Keywords

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Ming Xie

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Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal

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Bibliographical note

Funding

Keywords

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Ming Xie

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