Effects of salinity build-up on biomass characteristics and trace organic chemical removal: Implications on the development of high retention membrane bioreactors

Luo, W; Hai, FI; Kang, J; Price, WE; Guo, W; Ngo, HH; Yamamoto, K; Nghiem, LD

Effects of salinity build-up on biomass characteristics and trace organic chemical removal: Implications on the development of high retention membrane bioreactors

Luo, W Hai, FI Kang, J Price, WE Guo, W

Ngo, HH

Yamamoto, K Nghiem, LD

Permalink

Publication Type:: Journal Article
Citation:: Bioresource Technology, 2015, 177 pp. 274 - 281
Issue Date:: 2015-02-01

Closed Access

	Filename	Description	Size
	Effects of salinity build-up on biomass characteristics and trace organic chemical removal (BITE 14290).pdf	Published Version	533.17 kB	Adobe PDF	View/Open
	Accepted Manuscript Effects of salinity build-up on biomass characteristics and TOC removal (BITE 14290).pdf	Accepted Manuscript Version	571.71 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Luo, W	en_US
dc.contributor.author	Hai, FI	en_US
dc.contributor.author	Kang, J	en_US
dc.contributor.author	Price, WE	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Yamamoto, K	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.date.available	2014-11-20	en_US
dc.date.issued	2015-02-01	en_US
dc.identifier.citation	Bioresource Technology, 2015, 177 pp. 274 - 281	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37906
dc.identifier.uri	http://hdl.handle.net/10453/33373
dc.description.abstract	© 2014. This study investigated the impact of salinity build-up on the performance of membrane bioreactor (MBR), specifically in terms of the removal and fate of trace organic chemicals (TrOCs), nutrient removal, and biomass characteristics. Stepwise increase of the influent salinity, simulating salinity build-up in high retention MBRs, adversely affected the metabolic activity in the bioreactor, thereby reducing organic and nutrient removal. The removal of hydrophilic TrOCs by MBR decreased due to salinity build-up. By contrast, with the exception of 17α-ethynylestradiol, the removal of all hydrophobic TrOCs was not affected at high salinity. Moreover, salinity build-up had negligible impact on the residual accumulation of TrOCs in the sludge phase except for a few hydrophilic compounds. Additionally, the response of the biomass to salinity stress also dramatically enhanced the release of both soluble microbial products (SMP) and extracellular polymeric substances (EPS), leading to severe membrane fouling.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2014.11.084	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Organic Chemicals	en_US
dc.subject.mesh	Biopolymers	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Biomass	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Solubility	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	Salinity	en_US
dc.subject.mesh	Biofouling	en_US
dc.title	Effects of salinity build-up on biomass characteristics and trace organic chemical removal: Implications on the development of high retention membrane bioreactors	en_US
dc.type	Journal Article
utslib.citation.volume	177	en_US
utslib.for	0904 Chemical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	177	en_US

Abstract:

© 2014. This study investigated the impact of salinity build-up on the performance of membrane bioreactor (MBR), specifically in terms of the removal and fate of trace organic chemicals (TrOCs), nutrient removal, and biomass characteristics. Stepwise increase of the influent salinity, simulating salinity build-up in high retention MBRs, adversely affected the metabolic activity in the bioreactor, thereby reducing organic and nutrient removal. The removal of hydrophilic TrOCs by MBR decreased due to salinity build-up. By contrast, with the exception of 17α-ethynylestradiol, the removal of all hydrophobic TrOCs was not affected at high salinity. Moreover, salinity build-up had negligible impact on the residual accumulation of TrOCs in the sludge phase except for a few hydrophilic compounds. Additionally, the response of the biomass to salinity stress also dramatically enhanced the release of both soluble microbial products (SMP) and extracellular polymeric substances (EPS), leading to severe membrane fouling.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/33373