Low-cost technologies for arsenic removal in the Chaco-Pampean Plain, Argentina

Morgada de Boggio, K. E. and Levy, I. K. and Mateu, M. and Litter, M. I. and Bhattacharya, P. and Bundschuh, J. (2009) Low-cost technologies for arsenic removal in the Chaco-Pampean Plain, Argentina. In: Natural arsenic in groundwaters of Latin America. Arsenic in the Environment, 1. Taylor & Francis (CRC Press), London, United Kingdom, pp. 677-683. ISBN 9780415407717

Abstract

Groundwater of the Chaco-Pampean plain of Argentina contains levels of arsenic (As) exceeding drinking water standards. The situation is more serious in rural areas, causing a high incidence of CERHA (Chronic Endemic Regional Hydroarsenicism). Results of treatment experiments involving either heterogeneous photocatalysis (HP) or zerovalent iron (ZVI) in plastic bottles to remove As from groundwater are presented as low-cost technologies to remove As. For HP tests, synthetic or natural samples containing As placed in bottles impregnated with a TiO2 layer and exposed to solar or artificial UV light followed by an addition of iron resulted in As concentration well below drinking water standards. For ZVI tests, iron wool was shown to be a better iron source than packing wire for As removal. Solar irradiation, in synthetic as well as in
natural samples, improves As removal, avoiding the use of high amounts of iron.


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Item Type: Book Chapter (Commonwealth Reporting Category B)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 06 Nov 2014 01:19
Last Modified: 12 Sep 2016 02:29
Uncontrolled Keywords: arsenic; removal; low-cost; Chaco-Pampean Plain
Fields of Research : 05 Environmental Sciences > 0502 Environmental Science and Management > 050204 Environmental Impact Assessment
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040603 Hydrogeology
URI: http://eprints.usq.edu.au/id/eprint/26262

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