Simple models for the release kinetics of dissolved organic carbon from woody filtration media

McLaughlan, RG; Al-Mashaqbeh, O

Simple models for the release kinetics of dissolved organic carbon from woody filtration media

McLaughlan, RG

Al-Mashaqbeh, O

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2009, 100 (9), pp. 2588 - 2593
Issue Date:: 2009-05-01

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Field	Value	Language
dc.contributor.author	McLaughlan, RG https://orcid.org/0000-0001-9796-0988	en_US
dc.contributor.author	Al-Mashaqbeh, O	en_US
dc.date.available	2008-12-03	en_US
dc.date.issued	2009-05-01	en_US
dc.identifier.citation	Bioresource Technology, 2009, 100 (9), pp. 2588 - 2593	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9129
dc.description.abstract	The mechanisms and kinetics of dissolved organic carbon (DOC) release from woody materials (pine, hardwood and compost) under non-equilibrium leaching conditions was examined through batch and column tests. Mechanistically based kinetic models (first and second order) had a low predictive power for DOC release compared to those based solely on regression (Elovitch, power law). The DOC release data showed a bi-phasic response, with an early period of rapid release (<24 h) controlled by film diffusion followed by a slower rate controlled by intra-particle diffusion. After flow interruption, DOC release was primarily controlled by intra-particle diffusion; however, the specific rate parameters generally varied with each flow cycle and between different wood types. Crown Copyright © 2008.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2008.12.002	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Pinus	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Filtration	en_US
dc.subject.mesh	Water Movements	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Absorption	en_US
dc.subject.mesh	Kinetics	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Models, Biological	en_US
dc.subject.mesh	Wood	en_US
dc.title	Simple models for the release kinetics of dissolved organic carbon from woody filtration media	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	100	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/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic 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	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	100	en_US

Abstract:

The mechanisms and kinetics of dissolved organic carbon (DOC) release from woody materials (pine, hardwood and compost) under non-equilibrium leaching conditions was examined through batch and column tests. Mechanistically based kinetic models (first and second order) had a low predictive power for DOC release compared to those based solely on regression (Elovitch, power law). The DOC release data showed a bi-phasic response, with an early period of rapid release (<24 h) controlled by film diffusion followed by a slower rate controlled by intra-particle diffusion. After flow interruption, DOC release was primarily controlled by intra-particle diffusion; however, the specific rate parameters generally varied with each flow cycle and between different wood types. Crown Copyright © 2008.

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http://hdl.handle.net/10453/9129