Journal
JOURNAL OF CLEANER PRODUCTION
Volume 17, Issue 16, Pages 1504-1511Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2009.06.008
Keywords
Wastewater reuse; Multicriteria decision making; Disinfection; Environmental criteria; Social criteria
Categories
Funding
- DGICYT [TIN2008 - 06872 - C0404]
- Fundacion Seneca [8824/PPC/08]
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The environmental and social impact derived from treated wastewater reuse is an intrinsically complex multidimensional process, which involves multiple criteria and multiple stakeholders. This paper presents the use of multicriteria decision through the TOPSIS method, applied to six different methodologies concerning the disinfection of treated wastewater before reusing. Results have shown that the best disinfection technique for treated wastewater has been chlorination with 4 ppm, if this water is to be destined to an urban, agricultural or industrial use, due to a large weight given to cost and environmental criteria. Conversely, in recreational and environmental uses, the alternative of ultraviolet light disinfection was the chosen alternative. Economic criteria showed priority in the most entrepreneurial uses of the water, although social and political cost had a greater weight in the case of environmental or recreational uses. The inclusion of environmental and social assessment in the disinfection technique decision support clearly provides a cleaner and more sustainable production. (C) 2009 Elsevier Ltd. All rights reserved.
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