From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland

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Title: From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland
Authors: Babatunde, A.O.
Zhao, Y.Q.
Yang, Y.
Kearney, P.
Permanent link: http://hdl.handle.net/10197/3262
Date: Jul-2007
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.
Funding Details: Other funder
Type of material: Journal Article
Publisher: DesTech Publications
Keywords: Adsorption;Dewatered alum sludge;Phosphorus;Vertical flow constructed wetland;Waterworks sludge;wastewater treatment;Organic matter
Subject LCSH: Water treatment plant residuals
Phosphates--Absorption and adsorption
Constructed wetlands
Agricultural wastes
Organic wastes--Purification
Language: en
Status of Item: Peer reviewed
Appears in Collections:Centre for Water Resources Research Collection
Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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