Removal of glyphosate from aqueous environment by adsorption using water industrial residual

Files in This Item:
File Description SizeFormat 
10-Hu 2010 UCD-Desalination.pdf554.27 kBAdobe PDFDownload
Title: Removal of glyphosate from aqueous environment by adsorption using water industrial residual
Authors: Hu, Y.S.
Zhao, Y.Q.
Sorohan, B.
Permanent link: http://hdl.handle.net/10197/3113
Date: Apr-2011
Abstract: This study investigated the glyphosate adsorption by water treatment residual (termed as alum sludge) in dewatered form (DAS) and liquid form (LAS). Batch adsorption tests were carried out with DAS at different pH, particle size and DAS mass. Standard jar tests were conducted with LAS at two different concentrations (3 g/l and 5 g/l) for glyphosate adsorption. Thereafter, the glyphosate-enriched LAS (after adsorption tests) was subjected to sludge conditioning procedure with polymer LT25 as conditioner to explore any possible further glyphosate reduction. The results indicate that alum sludge has the high adsorption capacity of 85.9 mg/g for DAS and 113.6 mg/g for LAS. This demonstrated the potential of the alum sludge to be an efficient and cost-effective adsorbent for glyphosate removal in comparison with other adsorbents, such as soils, humic substances, clay minerals, and layered double hydroxides (LDH). The polymer conditioning of the glyphosate-enriched LAS cannot bring about the further glyphosate reduction in the supernatant of the dewatered LAS. Overall, this study promotes the beneficial reuse of alum sludge in wide range of pollutant control in environmental engineering.
Funding Details: Other funder
Type of material: Journal Article
Publisher: Elsevier
Copyright (published version): 2010 Elsevier
Keywords: Adsorption;Adsorption isotherm;Alum sludge;Glyphosate;Reuse;Water treatment residual
Subject LCSH: Glyphosate--Absorption and adsorption
Water treatment plant residuals
Water--Purification
DOI: 10.1016/j.desal.2010.12.014
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

SCOPUSTM   
Citations 5

39
Last Week
0
Last month
checked on Jun 22, 2018

Page view(s) 10

189
checked on May 25, 2018

Download(s) 5

2,981
checked on May 25, 2018

Google ScholarTM

Check

Altmetric


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.