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From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland
Author(s)
Date Issued
July 2007
Date Available
21T15:56:45Z October 2011
Abstract
Dewatered alum sludge, a by-product of drinking water treatment plants, hitherto consigned to landfills was used to develop a novel bio-filter in form of a constructed wetland. Performance results have demonstrated the benefits of the alum sludge cakes in a lab-scale system in enhancing phosphorus (P) removal from an animal farm wastewater. Although P and organic matter were concurrently removed in the system, there was a probable “one off” release of organics from the system, and this coincided with an increase in inlet P concentration from 39.2 mg-P/l to 163.0 mg-P/l. A conceptual model was then proposed to explain and discuss this.
Sponsorship
Other funder
Other Sponsorship
Environmental Protection Agency
Type of Material
Journal Article
Publisher
DesTech Publications
Journal
Journal of Residuals Science & Technology
Volume
4
Issue
3
Start Page
147
End Page
152
Subject – LCSH
Water treatment plant residuals
Phosphates--Absorption and adsorption
Constructed wetlands
Agricultural wastes
Organic wastes--Purification
Language
English
Status of Item
Peer reviewed
ISSN
1544-8053
This item is made available under a Creative Commons License
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