Role of extracellular polymeric substances in biosorption of dye wastewater using aerobic granular sludge

Wei, D; Wang, B; Ngo, HH; Guo, W; Han, F; Wang, X; Du, B; Wei, Q

Role of extracellular polymeric substances in biosorption of dye wastewater using aerobic granular sludge

Wei, D Wang, B Ngo, HH

Guo, W

Han, F Wang, X Du, B Wei, Q

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2015, 185 pp. 14 - 20
Issue Date:: 2015-06-01

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Field	Value	Language
dc.contributor.author	Wei, D	en_US
dc.contributor.author	Wang, B	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Han, F	en_US
dc.contributor.author	Wang, X	en_US
dc.contributor.author	Du, B	en_US
dc.contributor.author	Wei, Q	en_US
dc.date.available	2015-02-20	en_US
dc.date.issued	2015-06-01	en_US
dc.identifier.citation	Bioresource Technology, 2015, 185 pp. 14 - 20	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/34489
dc.description.abstract	© 2015 Elsevier Ltd. In this study, the role of extracellular polymeric substances (EPS) in biosorption of dye wastewater was evaluated using aerobic granular sludge as biosorbent. Based on the experimental data, the removal efficiencies of methylene blue (MB) by EPS and Sludge were 9.38 and 80.72%, respectively, implying that EPS made a certain contribution for MB removal. The adsorption rates of EPS, Sludge, and total Sludge. +. EPS for MB were better fitted with pseudo-second order kinetic model, and the equilibrium adsorption isotherm data agreed well with Langmuir model. The interaction between EPS and MB was explored by a combined three-dimensional excitation-emission matrix (3D-EEM) and synchronous fluorescence spectra. 3D-EEM indicated that protein- and humic acid-like substances were the main peaks of EPS, and gradually quenched with increased MB concentrations. According to synchronous fluorescence spectra, the main fluorescence quenching was caused by tryptophan residues, and the type belonged to a combined dynamic and static quenching.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2015.02.084	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Bacteria, Aerobic	en_US
dc.subject.mesh	Biopolymers	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Models, Biological	en_US
dc.subject.mesh	Computer Simulation	en_US
dc.subject.mesh	Coloring Agents	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	Waste Water	en_US
dc.subject.mesh	Absorption, Physiological	en_US
dc.title	Role of extracellular polymeric substances in biosorption of dye wastewater using aerobic granular sludge	en_US
dc.type	Journal Article
utslib.citation.volume	185	en_US
utslib.for	090404 Membrane and Separation Technologies	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	185	en_US

Abstract:

© 2015 Elsevier Ltd. In this study, the role of extracellular polymeric substances (EPS) in biosorption of dye wastewater was evaluated using aerobic granular sludge as biosorbent. Based on the experimental data, the removal efficiencies of methylene blue (MB) by EPS and Sludge were 9.38 and 80.72%, respectively, implying that EPS made a certain contribution for MB removal. The adsorption rates of EPS, Sludge, and total Sludge. +. EPS for MB were better fitted with pseudo-second order kinetic model, and the equilibrium adsorption isotherm data agreed well with Langmuir model. The interaction between EPS and MB was explored by a combined three-dimensional excitation-emission matrix (3D-EEM) and synchronous fluorescence spectra. 3D-EEM indicated that protein- and humic acid-like substances were the main peaks of EPS, and gradually quenched with increased MB concentrations. According to synchronous fluorescence spectra, the main fluorescence quenching was caused by tryptophan residues, and the type belonged to a combined dynamic and static quenching.

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http://hdl.handle.net/10453/34489