Exploitation of Fenton and Fenton-like reagents as alternative conditioners for alum sludge conditioning

Files in This Item:
File Description SizeFormat 
33-200801047-zhaoyq.pdf247.39 kBAdobe PDFDownload
Title: Exploitation of Fenton and Fenton-like reagents as alternative conditioners for alum sludge conditioning
Authors: Tony, Maha A.
Zhao, Y.Q.
Tayeb, Aghareed M.
Permanent link: http://hdl.handle.net/10197/3135
Date: Jan-2009
Online since: 2011-08-31T13:45:32Z
Abstract: The use of Fenton’s reagent (Fe2+/H2O2) and Fenton-like reagents containing transition metals of Cu(II), Zn(II), Co(II) and Mn(II) for an alum sludge conditioning to improve its dewaterability was investigated in this study. The results obtained were compared with those obtained from conditioning the same alum sludge using cationic and anionic polymers. Experimental results show that Fenton’s reagent was the best among the Fenton and Fenton-like reagents for the alum sludge conditioning. A considerable effectiveness of capillary suction time (CST) reduction efficiency of 47% can be achieved under test conditions of Fe2+/H2O2 = 20/125 mg/gDS (Dry Solids) and pH = 6.0. The observation of floc-like particles after Fenton’s reagent conditioning of alum sludge suggests that the mechanism of Fenton’s reagent conditioning was different with that of polymer conditioning. In spite of the less efficiency in CST reduction of Fenton’s reagent in alum sludge conditioning compared with that of polymer conditioning, is less than that of polymer conditioning. This study provided an example of proactive treatment engineering which is aimed at seeking a safe alternative to the use of polymers in sludge conditioning towards achieving a more sustainable sludge management strategy.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Elsevier
Journal: Journal of Environmental Sciences
Volume: 21
Issue: 1
Start page: 101
End page: 105
Copyright (published version): 2009 Elsevier B.V.
Keywords: Alum sludgeConditioningFenton and Fenton-like reagentsOrganic polymersCost estimate
Subject LCSH: Water treatment plant residuals
Sewage sludge--Conditioning
Fenton's reagent
DOI: 10.1016/S1001-0742(09)60018-8
Other versions: http://dx.doi.org/10.1016/S1001-0742(09)60018-8
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

Show full item record

Citations 10

Last Week
Last month
checked on Feb 18, 2019

Page view(s) 10

checked on May 25, 2018

Download(s) 5

checked on May 25, 2018

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.