As with other water treatment systems, arsenic treatment creates not only quality water but arsenic waste as well. Management of arsenic waste is now becoming a major public concern due to its harmful effects on the surrounding environment, including serious health problems such as skin cancers and various internal carcinomas. The main aim of this paper is to review: (i) the characteristics of arsenic waste produced by arsenic treatment systems; and (ii) the treatment and disposal methods of this waste. Arsenic waste type or its characteristics play an important role in choosing the best method of treatment and disposal. Currently, encapsulation of arsenic waste through solidification/stabilization (S/S) techniques is considered to be the most attractive solution and this method is the focus of this review. A number of studies have used cement by itself and in combination with additives such as lime, iron, silicates, or fly ash in the S/S process. Although there is a lack of systematic investigations and differing procedures for testing the effectiveness of the treatment methods, it was agreed that incorporating additives could increase the effectiveness of the S/S process depending on the type and dose of additives.
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Research Article|
July 16 2014
Arsenic waste from water treatment systems: characteristics, treatments and its disposal Available to Purchase
Tien Vinh Nguyen;
Tien Vinh Nguyen
1Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
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Paripurnanda Loganathan;
Paripurnanda Loganathan
1Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
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Saravanamuthu Vigneswaran;
1Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
E-mail: [email protected]
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Srirama Krupanidhi;
Srirama Krupanidhi
2School of Biotechnology, Vignan University, Vadlamudi-522 213 A P, India
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Thi Thu Nga Pham;
Thi Thu Nga Pham
1Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
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Huu-Hao Ngo
Huu-Hao Ngo
1Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
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Water Supply (2014) 14 (6): 939–950.
Article history
Received:
February 28 2014
Accepted:
July 07 2014
Citation
Tien Vinh Nguyen, Paripurnanda Loganathan, Saravanamuthu Vigneswaran, Srirama Krupanidhi, Thi Thu Nga Pham, Huu-Hao Ngo; Arsenic waste from water treatment systems: characteristics, treatments and its disposal. Water Supply 1 December 2014; 14 (6): 939–950. doi: https://doi.org/10.2166/ws.2014.073
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