Decision support in disinfection technologies for treated wastewater reuse |
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| Authors: | MD Gómez-López J Bayo MS García-Cascales JM Angosto |
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| Institution: | 1. Group of Management and Aid Decision Support in Project Engineering, Technical University of Cartagena, Spain;2. Department of Chemical and Environmental Engineering, Technical University of Cartagena, Spain, Paseo Alfonso XIII, 48, E-30203 Cartagena, Spain;1. IRSA CNR, Viale F. De Blasio, 5, 70132 Bari, Italy;2. Department of Science of Agriculture, Food and Environment, University of Foggia, Via Napoli, 25, 71121 Foggia, Italy;1. Department of Civil and Environmental Engineering, Urban Water Research Center, University of California, Irvine, CA 92697, United States;2. Laboratory of Chemical and Environmental Engineering (LEQUIA), Universitat de Girona, Facultat Ciències, Campus Montilivi, 17071 Girona, Spain;3. Department of Mathematics for Economics, Universitat de Valencia, Campus dels Tarongers, 46022 Valencia, Spain;4. Department of Chemical Engineering and Food Technology, Faculty of Sciences, Campus de Excelencia Internacional Agroalimentario (CeiA3), University of Cádiz, 11510 Puerto Real (Cádiz), Spain;5. Department of Environmental Technology, Faculty of Marine and Environmental Sciences, University of Cádiz, 11510 Puerto Real (Cádiz), Spain;6. Department of Applied Economics II, Universitat de Valencia, Campus dels Tarongers, 46022 Valencia, Spain;2. AGA Research Group, Departament d’Enginyeria Química, Universitat Rovira i Virgili, Avinguda dels Països Catalans 26, 43007 Tarragona, Spain;1. Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China;2. Department of Civil and Environmental Engineering, Northeastern University, Boston 02115, USA |
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| Abstract: | 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. |
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