Dynamic membrane bioreactor performance enhancement by powdered activated carbon addition: Evaluation of sludge morphological, aggregative and microbial properties

Yu, Z; Hu, Y; Dzakpasu, M; Wang, XC; Ngo, HH

Dynamic membrane bioreactor performance enhancement by powdered activated carbon addition: Evaluation of sludge morphological, aggregative and microbial properties

Yu, Z Hu, Y Dzakpasu, M Wang, XC Ngo, HH

Permalink

Publication Type:: Journal Article
Citation:: Journal of Environmental Sciences (China), 2019, 75 pp. 73 - 83
Issue Date:: 2019-01-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted Manuscript VersionAdobe PDF (619.01 kB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Yu, Z	en_US
dc.contributor.author	Hu, Y	en_US
dc.contributor.author	Dzakpasu, M	en_US
dc.contributor.author	Wang, XC	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.date.available	2021-01-31T18:12:37Z
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Journal of Environmental Sciences (China), 2019, 75 pp. 73 - 83	en_US
dc.identifier.issn	1001-0742	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129536
dc.description.abstract	© 2018 The effects of powdered activated carbon (PAC) addition on sludge morphological, aggregative and microbial properties in a dynamic membrane bioreactor (DMBR) were investigated to explore the enhancement mechanism of pollutants removal and filtration performance. Sludge properties were analyzed through various analytical measurements. The results showed that the improved sludge aggregation ability and the evolution of microbial communities affected sludge morphology in PAC-DMBR, as evidenced by the formation of large, regularly shaped and strengthened sludge flocs. The modifications of sludge characteristics promoted the formation process and filtration flux of the dynamic membrane (DM) layer. Additionally, PAC addition did not exert very significant influence on the propagation of eukaryotes (protists and metazoans) and microbial metabolic activity. High-throughput pyrosequencing results indicated that adding PAC improved the bacterial diversity in activated sludge, as PAC addition brought about additional microenvironment in the form of biological PAC (BPAC), which promoted the enrichment of Acinetobacter (13.9%), Comamonas (2.9%), Flavobacterium (0.31%) and Pseudomonas (0.62%), all contributing to sludge flocs formation and several (such as Acinetobacter) capable of biodegrading relatively complex organics. Therefore, PAC addition could favorably modify sludge properties from various aspects and thus enhance the DMBR performance.	en_US
dc.relation.ispartof	Journal of Environmental Sciences (China)	en_US
dc.relation.isbasedon	10.1016/j.jes.2018.03.003	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Bacteria	en_US
dc.subject.mesh	Charcoal	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Filtration	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Dynamic membrane bioreactor performance enhancement by powdered activated carbon addition: Evaluation of sludge morphological, aggregative and microbial properties	en_US
dc.type	Journal Article
utslib.citation.volume	75	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	0401 Atmospheric Sciences	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	04 Earth Sciences	en_US
utslib.for	05 Environmental Sciences	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	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	75	en_US

Abstract:

© 2018 The effects of powdered activated carbon (PAC) addition on sludge morphological, aggregative and microbial properties in a dynamic membrane bioreactor (DMBR) were investigated to explore the enhancement mechanism of pollutants removal and filtration performance. Sludge properties were analyzed through various analytical measurements. The results showed that the improved sludge aggregation ability and the evolution of microbial communities affected sludge morphology in PAC-DMBR, as evidenced by the formation of large, regularly shaped and strengthened sludge flocs. The modifications of sludge characteristics promoted the formation process and filtration flux of the dynamic membrane (DM) layer. Additionally, PAC addition did not exert very significant influence on the propagation of eukaryotes (protists and metazoans) and microbial metabolic activity. High-throughput pyrosequencing results indicated that adding PAC improved the bacterial diversity in activated sludge, as PAC addition brought about additional microenvironment in the form of biological PAC (BPAC), which promoted the enrichment of Acinetobacter (13.9%), Comamonas (2.9%), Flavobacterium (0.31%) and Pseudomonas (0.62%), all contributing to sludge flocs formation and several (such as Acinetobacter) capable of biodegrading relatively complex organics. Therefore, PAC addition could favorably modify sludge properties from various aspects and thus enhance the DMBR performance.

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

http://hdl.handle.net/10453/129536