Treatment of As contaminated water from mining industry by precipitation of Al-Fe (hydr)oxides

De Mello, J. W. V., Gasparon, M. and Silva, J. (2014). Treatment of As contaminated water from mining industry by precipitation of Al-Fe (hydr)oxides. In: Marta I. Litter, Hugo B. Nicolli, Martin Meichtry, Natalia Quici, Jochen Bundschuh, Prosun Bhattacharya and Ravi Naidu, One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. 5th International Congress on Arsenic in the Environment, As 2014, Buenos Aires, Argentina, (678-680). 11-16 May 2014.

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Name Description MIMEType Size Downloads
Author De Mello, J. W. V.
Gasparon, M.
Silva, J.
Title of paper Treatment of As contaminated water from mining industry by precipitation of Al-Fe (hydr)oxides
Conference name 5th International Congress on Arsenic in the Environment, As 2014
Conference location Buenos Aires, Argentina
Conference dates 11-16 May 2014
Proceedings title One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment
Journal name One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment
Series Arsenic in the Environment - Proceedings
Place of Publication Leiden, The Netherlands
Publisher CRC Press/Balkema
Publication Year 2014
Sub-type Fully published paper
Open Access Status
ISBN 9781138001411
ISSN 2154-6568
Editor Marta I. Litter
Hugo B. Nicolli
Martin Meichtry
Natalia Quici
Jochen Bundschuh
Prosun Bhattacharya
Ravi Naidu
Start page 678
End page 680
Total pages 3
Chapter number 232
Total chapters 305
Collection year 2015
Abstract/Summary Treatment of water contaminated with arsenic is a worldwide problem. Al-Fe (hydr) oxides were precipitated from Al and ferrous sulfates at different Fe:Al ratios in order to remove arsenic from water. The resulting suspensions were aged for three months and As was periodically analyzed in the supernatant during this period. At the end of the aging period, the precipitates were collected and oven dried at 50°C. TCLP procedure and discrete extractions with BCR sequential extraction solutions were used in order to evaluate the stability of As in the precipitates. Results showed that all treatments were efficient to remove As from water, and the resulting precipitates were considered non-toxic and stable residues under acidic or reducing conditions.
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
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Created: Tue, 07 Oct 2014, 02:36:37 EST by System User on behalf of National Res Centre For Environmental Toxicology