Granular activated carbon (GAC) adsorption in tertiary wastewater treatment: Experiments and models

Chaudhary, DS; Vigneswaran, S; Jegatheesan, V; Ngo, HH; Moon, H; Shim, WG; Kim, SH

Granular activated carbon (GAC) adsorption in tertiary wastewater treatment: Experiments and models

Chaudhary, DS Vigneswaran, S

Jegatheesan, V Ngo, HH

Moon, H Shim, WG Kim, SH

Permalink

Publication Type:: Journal Article
Citation:: Water Science and Technology, 2003, 47 (1), pp. 113 - 120
Issue Date:: 2003-02-11

Closed Access

	Filename	Description	Size
	2003000397.pdf		831.51 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	Chaudhary, DS	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Jegatheesan, V	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Moon, H	en_US
dc.contributor.author	Shim, WG	en_US
dc.contributor.author	Kim, SH	en_US
dc.date.issued	2003-02-11	en_US
dc.identifier.citation	Water Science and Technology, 2003, 47 (1), pp. 113 - 120	en_US
dc.identifier.issn	0273-1223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3930
dc.description.abstract	Wastewater treatment has always been a major concern in the developed countries. Over the last few decades, activated carbon adsorption has gained importance as an alternative tertiary wastewater treatment and purification process. In this study, granular activated carbon (GAC) adsorption was evaluated in terms of total organic carbon (TOC) removal from low strength synthetic wastewater. This paper provides details on adsorption experiments conducted on synthetic wastewater to develop suitable adsorption isotherms. Although the inorganics used in the synthetic wastewater solution had an overall unfavourable effect on adsorption of organics, the GAC adsorption system was found to be effective in removing TOC from the wastewater. This study showed that equation of state (EOS) theory was able to fit the adsorption isotherm results more precisely than the most commonly used Freundlich isotherm. Biodegradation of the organics with time was the most crucial and important aspect of the system and it was taken into account in determining the isotherm parameters. Initial organic concentration of the wastewater was the determining factor of the model parameters, and hence the isotherm parameters were determined covering a wide range of initial organic concentrations of the wastewater. As such, the isotherm parameters derived using the EOS theory could predict the batch adsorption and fixed bed adsorption results of the multi-component system successfully. The isotherm parameters showed a significant effect on the determination of the mass transfer coefficients in batch and fixed bed systems.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP0211955
dc.relation	http://purl.org/au-research/grants/arc/DP0450037
dc.relation.ispartof	Water Science and Technology	en_US
dc.subject.classification	Environmental Engineering	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Water Pollutants	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.subject.mesh	Developing Countries	en_US
dc.title	Granular activated carbon (GAC) adsorption in tertiary wastewater treatment: Experiments and models	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	47	en_US
utslib.for	090407 Process Control and Simulation	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	090409 Wastewater Treatment Processes	en_US
dc.location.activity	SINGAPORE, SINGAPORE
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.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	47	en_US

Abstract:

Wastewater treatment has always been a major concern in the developed countries. Over the last few decades, activated carbon adsorption has gained importance as an alternative tertiary wastewater treatment and purification process. In this study, granular activated carbon (GAC) adsorption was evaluated in terms of total organic carbon (TOC) removal from low strength synthetic wastewater. This paper provides details on adsorption experiments conducted on synthetic wastewater to develop suitable adsorption isotherms. Although the inorganics used in the synthetic wastewater solution had an overall unfavourable effect on adsorption of organics, the GAC adsorption system was found to be effective in removing TOC from the wastewater. This study showed that equation of state (EOS) theory was able to fit the adsorption isotherm results more precisely than the most commonly used Freundlich isotherm. Biodegradation of the organics with time was the most crucial and important aspect of the system and it was taken into account in determining the isotherm parameters. Initial organic concentration of the wastewater was the determining factor of the model parameters, and hence the isotherm parameters were determined covering a wide range of initial organic concentrations of the wastewater. As such, the isotherm parameters derived using the EOS theory could predict the batch adsorption and fixed bed adsorption results of the multi-component system successfully. The isotherm parameters showed a significant effect on the determination of the mass transfer coefficients in batch and fixed bed systems.

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

http://hdl.handle.net/10453/3930