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Life Cycle Assessment of urban wastewater reuse with ozonation as tertiary treatment: a focus on toxicity-related impacts.
Sci Total Environ. 2009 Feb 01; 407(4):1245-56.ST

Abstract

Life Cycle Assessment has been used to compare different scenarios involving wastewater reuse, with special focus on toxicity-related impact categories. The study is based on bench-scale experiments applying ozone and ozone in combination with hydrogen peroxide to a wastewater effluent from a Spanish sewage treatment plant. Two alternative characterisation models have been used to account for toxicity of chemical substances, namely USES-LCA and EDIP97. Four alternative scenarios have been assessed: wastewater discharge plus desalination supply, wastewater reuse without tertiary treatment, wastewater reuse after applying a tertiary treatment consisting on ozonation, and wastewater reuse after applying ozonation in combination with hydrogen peroxide. The results highlight the importance of including wastewater pollutants in LCA of wastewater systems assessing toxicity, since the contribution of wastewater pollutants to the overall toxicity scores in this case study can be above 90%. Key pollutants here are not only heavy metals and other priority pollutants, but also non-regulated pollutants such as pharmaceuticals and personal care products. Wastewater reuse after applying any of the tertiary treatments considered appears as the best choice from an ecotoxicity perspective. As for human toxicity, differences between scenarios are smaller, and taking into account the experimental and modelling uncertainty, the benefits of tertiary treatment are not so clear. From a global warming potential perspective, tertiary treatments involve a potential 85% reduction of greenhouse gas emissions when compared with desalination.

Authors+Show Affiliations

Departamento de Hidrogeología y Química Analítica, Universidad de Almería, ctra. de Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain. ivanmuno@ual.esNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19036408

Citation

Muñoz, Ivan, et al. "Life Cycle Assessment of Urban Wastewater Reuse With Ozonation as Tertiary Treatment: a Focus On Toxicity-related Impacts." The Science of the Total Environment, vol. 407, no. 4, 2009, pp. 1245-56.
Muñoz I, Rodríguez A, Rosal R, et al. Life Cycle Assessment of urban wastewater reuse with ozonation as tertiary treatment: a focus on toxicity-related impacts. Sci Total Environ. 2009;407(4):1245-56.
Muñoz, I., Rodríguez, A., Rosal, R., & Fernández-Alba, A. R. (2009). Life Cycle Assessment of urban wastewater reuse with ozonation as tertiary treatment: a focus on toxicity-related impacts. The Science of the Total Environment, 407(4), 1245-56. https://doi.org/10.1016/j.scitotenv.2008.09.029
Muñoz I, et al. Life Cycle Assessment of Urban Wastewater Reuse With Ozonation as Tertiary Treatment: a Focus On Toxicity-related Impacts. Sci Total Environ. 2009 Feb 1;407(4):1245-56. PubMed PMID: 19036408.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Life Cycle Assessment of urban wastewater reuse with ozonation as tertiary treatment: a focus on toxicity-related impacts. AU - Muñoz,Ivan, AU - Rodríguez,Antonio, AU - Rosal,Roberto, AU - Fernández-Alba,Amadeo R, Y1 - 2008/11/25/ PY - 2008/05/12/received PY - 2008/09/12/revised PY - 2008/09/20/accepted PY - 2008/11/28/pubmed PY - 2009/3/27/medline PY - 2008/11/28/entrez SP - 1245 EP - 56 JF - The Science of the total environment JO - Sci Total Environ VL - 407 IS - 4 N2 - Life Cycle Assessment has been used to compare different scenarios involving wastewater reuse, with special focus on toxicity-related impact categories. The study is based on bench-scale experiments applying ozone and ozone in combination with hydrogen peroxide to a wastewater effluent from a Spanish sewage treatment plant. Two alternative characterisation models have been used to account for toxicity of chemical substances, namely USES-LCA and EDIP97. Four alternative scenarios have been assessed: wastewater discharge plus desalination supply, wastewater reuse without tertiary treatment, wastewater reuse after applying a tertiary treatment consisting on ozonation, and wastewater reuse after applying ozonation in combination with hydrogen peroxide. The results highlight the importance of including wastewater pollutants in LCA of wastewater systems assessing toxicity, since the contribution of wastewater pollutants to the overall toxicity scores in this case study can be above 90%. Key pollutants here are not only heavy metals and other priority pollutants, but also non-regulated pollutants such as pharmaceuticals and personal care products. Wastewater reuse after applying any of the tertiary treatments considered appears as the best choice from an ecotoxicity perspective. As for human toxicity, differences between scenarios are smaller, and taking into account the experimental and modelling uncertainty, the benefits of tertiary treatment are not so clear. From a global warming potential perspective, tertiary treatments involve a potential 85% reduction of greenhouse gas emissions when compared with desalination. SN - 0048-9697 UR - https://www.unboundmedicine.com/medline/citation/19036408/Life_Cycle_Assessment_of_urban_wastewater_reuse_with_ozonation_as_tertiary_treatment:_a_focus_on_toxicity_related_impacts_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(08)00999-6 DB - PRIME DP - Unbound Medicine ER -