Environmental assessment of urban wastewater reuse: Treatment alternatives and applications

Meneses, Montse; Pasqualino, Jorgelina; Castells, Francesc

doi:10.1016/j.chemosphere.2010.05.053

Cited by 181 publications

(92 citation statements)

References 12 publications

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“…The impact of reusing SAnMBR effluent for irrigation is positive because it avoids the direct discharge of nutrients into natural water courses and reduces the use of synthetic fertiliser containing nitrogen (N) and phosphorous (P) (Meneses et al, 2010). Table 4 shows that the effluent discharged after part of its nutrients is used for irrigating It is important to highlight that the nutrient discharge has an equal environmental impact in the two scenarios conducted at 33 ºC (scenarios 1b and 2).…”

Section: In Accordance With Bengtsson Et Al (1997)mentioning

confidence: 99%

Environmental impact of submerged anaerobic MBR (SAnMBR) technology used to treat urban wastewater at different temperatures

Pretel

Robles

Ruano

et al. 2013

Bioresource Technology

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Elsevier Pretel, R.; Robles Martínez, Á.; Ruano García, MV.; Seco Torrecillas, A.;Ferrer, J. (2013) AbstractThe objective of this study was to assess the environmental impact of a submerged anaerobic MBR (SAnMBR) system in the treatment of urban wastewater at different temperatures: ambient temperature (20 and 33 ºC), and a controlled temperature (33 ºC). To this end, an overall energy balance (OEB) and life cycle assessment (LCA), both based on real process data, were carried out. Four factors were considered in this study: (1) energy consumption during wastewater treatment; (2) energy recovered from biogas capture; (3) potential recovery of nutrients from the final effluent; and (4) sludge disposal. The OEB and LCA showed SAnMBR to be a promising technology for treating urban wastewater at ambient temperature (OEB = 0.19 kWh·m -3 ). LCA results reinforce the importance of maximising the recovery of nutrients (environmental impact in eutrophication can be reduced up to 45%) and dissolved methane (positive environmental impact can be obtained) from SAnMBR effluent. KeywordsEnergy balance; global warming potential; life cycle assessment; submerged anaerobic MBR (SAnMBR); environmental impact. 2

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Section: In Accordance With Bengtsson Et Al (1997)mentioning

confidence: 99%

Environmental impact of submerged anaerobic MBR (SAnMBR) technology used to treat urban wastewater at different temperatures

Pretel

Robles

Ruano

et al. 2013

Bioresource Technology

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“…These studies have increasingly gained more attention as they have been applied to the processes of potable water treatment plants in developed and developing countries (Kulay et al, 2015;Ahmadi and Tiruta-Barna 2015;Bonton et. al., 2012;Hyunju et al, 2015;Igos et al, 2013;Meneses et al, 2010;Pasqualino et al, 2011;Ribera et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Life cycle assessment of four potable water treatment plants in northeastern Colombia

Ortíz-Rodriguez¹,

Villamizar‐Gallardo²,

García³

2016

Rev. ambiente água

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There is currently great concern about the processes that directly or indirectly contribute to the potential for global warming, such as stratospheric ozone depletion or acidification. In this context, and provided that treated water is a basic public utility in urban centers around the world as well as in some rural areas, its impact on the environment is of great interest. Therefore, this study applied the environmental methodology of Life Cycle Assessment (LCA) to evaluate the environmental loads of four potable water treatment plants (PWTPs) located in northeastern Colombia following the international guidelines delineated in ISO 14040. The different stages of the drinking water process were thoroughly assessed, from the catchment point through pumping to the distribution network. The functional unit was defined as 1 m 3 of drinking water produced at the plant. The data were analyzed through the database Ecoinvent v.3.01, and modeled and processed in the software LCA-Data Manager. The results showed that in plants PLA-CA and PLA-PO, the flocculation process has the highest environmental load, which is mostly attributable to the coagulant agent, with a range between 47-73% of the total impact. In plants PLA-TON and PLA-BOS, electricity consumption was identified as the greatest impact source, with percentages ranging from 67 to 85%. Treatment processes and techniques, bioclimatic conditions and culturally driven consumption behavior varied from region to region. Furthermore, changes in treatment processes and techniques are likely to affect the environment during all stages of a plant's operational cycle.Keywords: climate change, environmental impact, treated water. Avaliação do ciclo de vida de quatro estações de tratamento de água potável localizado no nordeste da Colômbia RESUMO Atualmente, existe uma grande preocupação com os processos que direta ou indiretamente contribuem para as alterações climáticas, destruição da camada de ozônio ou acidificação, entre outros impactos ambientais. Neste contexto, e desde que a água tratada constitui um serviço público básico em centros urbanos de todo o mundo e em algumas áreas rurais, o impacto de suas emissões no meio ambiente tem sido considerado de grande interesse. Assim, na pesquisa atual foi aplicada a metodologia ambiental de avaliação do ciclo da vida (LCA) para avaliar os impactos ambientais de quatro estações de tratamento de água potável (PWTPs), localizadas no nordeste da Colômbia seguindo diretrizes internacionais da ISO 14040. As diferentes etapas do processo de purificação a partir do ponto de captação por meio de bombeamento para a rede de distribuição foram completamente avaliadas. A unidade funcional foi definida como 1 m 3 de água potável produzida na fábrica. Os dados foram analisados com base no banco de dados Ecoinvent v.3.01 e processados no software LCAData Manager. Os resultados possibilitaram determinar que em plantas PLA-CA e PLA -POR, o processo de floculação tem a maior carga ambiental, o que é principalmente atribuível ao agente ...

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“…UV irradiation used to be used after chlorination. However, because recent studies found that UV following chlorination could form active chlorine species and enhance THMs and HAAs formation [19], UV irradiation before chlorination was investigated recently [20,21]. For example, a wastewater treatment plant with tertiary treatment located in a tourist village on the Mediterranean coast was equipped with UV irradiation and post-chlorination for disinfection [21].…”

Section: Introductionmentioning

confidence: 99%

Trihalomethane (THM) formation from synergic disinfection of biologically treated municipal wastewater: Effect of ultraviolet (UV) irradiation and titanium dioxide photocatalysis on dissolve organic matter fractions

Meng

Wang

Han

et al. 2016

Chemical Engineering Journal

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Environmental assessment of urban wastewater reuse: Treatment alternatives and applications

Cited by 181 publications

References 12 publications

Environmental impact of submerged anaerobic MBR (SAnMBR) technology used to treat urban wastewater at different temperatures

Environmental impact of submerged anaerobic MBR (SAnMBR) technology used to treat urban wastewater at different temperatures

Life cycle assessment of four potable water treatment plants in northeastern Colombia

Trihalomethane (THM) formation from synergic disinfection of biologically treated municipal wastewater: Effect of ultraviolet (UV) irradiation and titanium dioxide photocatalysis on dissolve organic matter fractions

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