Quantification of environmental impacts of domestic wastewater treatment using life cycle assessment: A review

Sabeen, Ali Hussein; Noor, Zainura Zainon; Ngadi, Norzita; Almuraisy, Saqer; Raheem, Ademola Bolanle

doi:10.1016/j.jclepro.2018.04.053

Cited by 82 publications

(37 citation statements)

References 30 publications

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“…Carbon footprint evaluations of WWTPs reported in the literature are often inconsistent and non-transparent, meaning that all relevant factors and processes are not included in the assessment, they are not in line with the European guidelines (JRC, 2011), and all choices related to methodology and data sources are not clarified. This observation is in line with a review study performed by Sabeen et al (2018) that underlined the need to define more stringent guidelines when evaluating the impacts of the domestic wastewater treatment in all impact categories, including global warming.…”

Section: Introductionsupporting

confidence: 86%

Site-specific carbon footprints of Scandinavian wastewater treatment plants, using the life cycle assessment approach

Delre

Hoeve

Scheutz

2019

Journal of Cleaner Production

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Section: Introductionsupporting

confidence: 86%

Site-specific carbon footprints of Scandinavian wastewater treatment plants, using the life cycle assessment approach

Delre

Hoeve

Scheutz

2019

Journal of Cleaner Production

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“…Over the WWTP's life cycle the greatest environmental impacts contributing were as follows: the final effluent, operation and, to a lesser extent, the construction. The most relevant impact for the operation phase confirms those of other LCA studies on wastewater treatment (Lopsik, 2013;Paéz et al, 2017;Garfí et al, 2017;Sabeen et al, 2018). Some researchers have exempted the construction phase, arguing that this phase has little impact compared to the impact of the whole lifecycle WWTP (Hospido et al, 2007).…”

Section: Introductionsupporting

confidence: 71%

“…The authors also emphasized that the comparison between different designs causes variations in the results for the categories of impact. In a general way, among a variety of technologies, anaerobic reactors and CWL have good environmental performance due to the low complexity and mechanization and low energy consumption (Sabeen et al, 2018). Therefore, improving the quality of the final effluent results in a greater demand for natural resources, high energy consumption, chemical and operational complexity, in addition to the increased of the greenhouse gases emissions.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2018

Rev. ambiente água

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This graph shows the influence of rainfall on the seasonal variation in cadmium (Cd) concentration in water samples from five reservoirs (R) and an artesian well (home). Intensive farming using agrochemicals (fertilizers and pesticides) can increase heavy metal concentrations in the soil-water-plant system, especially in the case of elements poorly retained by the soil and easily lost to leaching. Source: SILVA, L. S. et al. Heavy metals in waters used for human consumption and crop irrigation. Rev. Ambient. Água, Taubaté, vol. 13 n. 4, p. 1-10, 2018 This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Heavy metals in waters used ABSTRACTThe consumption of contaminated water is a major source of heavy metal contamination in humans and animals. This study therefore aimed to assess Cd, Cu, Mn, Ni, Pb, and Zn levels in water used for human and animal consumption and vegetable crop irrigation in Camocim de São Félix, Pernambuco, Brazil. Water samples were collected on the studied farms from an artesian well and reservoirs used for human and animal consumption as well as for crop irrigation. The results showed that concentrations of Cd (> 0.001 mg L -1 ), Ni (> 0.025 mg L -1 ) and Pb (> 0.01 mg L -1 ) were above the maximum allowable limits established under Brazilian law, indicating the need for a preventive monitoring program and immediate intervention initiatives aimed at the sources of contamination. The results demonstrate the need to quantify heavy metal content in vegetable crops, since their contamination by irrigation water may make them harmful to human health. Rainfall has a seasonal effect on heavy metal concentrations in water, showing a significant effect on Pb levels, whereas Cd and Ni content was less dependent on seasonal variation. e na irrigação de hortaliças no município de Camocim de São Félix (PE). Nas propriedades agrícolas, as amostras de água analisadas foram coletadas de poço artesiano e de reservatórios destinados ao consumo humano, animal e irrigação das lavouras. Os resultados demonstraram que as águas analisadas no presente estudo apresentaram concentrações de Cd (> 0,001 mg L -1 ), Ni (> 0,025 mg L -1 ) e Pb (> 0,01 mg L -1 ) superiores aos teores máximos permitidos indicados pela legislação brasileira, sinalizando a necessidade de um programa de monitoramento preventivo e ações de intervenção imediata das fontes de contaminação. Os resultados indicam a necessidade de quantificação das concentrações de metais pesados nas hortaliças, visto que contaminadas pelas águas de irrigação podem ser uma fonte nociva à saúde humana. A precipitação pluviométrica tem influência sobre a variação sazonal dos teores dos metais nas águas, com maior efeito na concentração de Pb e influência moderada nas concentrações de Cd e Ni.Palavras-chave: agroquímicos, cádmio, chumbo, elementos-traço, poluição difusa.

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“…A recent review of LCA studies conducted for domestic wastewater treatment plants since the year 1990 concludes that the development of guidelines and standards is necessary to further shape a consistent LCA methodology for the field. For example, different functional units which serve as reference units in LCA are used in different studies which aggravates a comparison of already assessed treatment processes in the environmental dimension [111].…”

Section: Technical Process Assessment (Gate Ii)mentioning

confidence: 99%

“…LCA databases provide readily defined impacts for a wide range of different conventional products and materials [113]. Other needed life cycling inventory data can be collected from published studies in the field of WWTP LCA [110,111]. Already available LCAs that include impacts associated with wastewater resource recovery mostly assess both energy recovery [114,115] and/or fertilizer recovery [116,117] as a consequence of different sludge handling technologies.…”

Section: Technical Process Assessment (Gate Ii)mentioning

confidence: 99%

The SPPD-WRF Framework: A Novel and Holistic Methodology for Strategical Planning and Process Design of Water Resource Factories

et al. 2020

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This paper guides decision making in more sustainable urban water management practices that feed into a circular economy by presenting a novel framework for conceptually designing and strategically planning wastewater treatment processes from a resource recovery perspective. Municipal wastewater cannot any longer be perceived as waste stream because a great variety of technologies are available to recover water, energy, fertilizer, and other valuable products from it. Despite the vast technological recovery possibilities, only a few processes have yet been implemented that deserve the name water resource factory instead of wastewater treatment plant. This transition relies on process designs that are not only technically feasible but also overcome various non-technical bottlenecks. A multidimensional and multidisciplinary approach is needed to design water resource factories (WRFs) in the future that are technically feasible, cost effective, show low environmental impacts, and successfully market recovered resources. To achieve that, the wastewater treatment plant (WWTP) design space needs to be opened up for a variety of expertise that complements the traditional wastewater engineering domain. Implementable WRF processes can only be designed if the current design perspective, which is dominated by the fulfilment of legal effluent qualities and process costs, is extended to include resource recovery as an assessable design objective from an early stage on. Therefore, the framework combines insights and methodologies from different fields and disciplines beyond WWTP design like, e.g., circular economy, industrial process engineering, project management, value chain development, and environmental impact assessment. It supports the transfer of the end-of-waste concept into the wastewater sector as it structures possible resource recovery activities according to clear criteria. This makes recovered resources more likely to fulfil the conditions of the end-of-waste concept and allows the change in their definition from wastes to full-fledged products.

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Quantification of environmental impacts of domestic wastewater treatment using life cycle assessment: A review

Cited by 82 publications

References 30 publications

Site-specific carbon footprints of Scandinavian wastewater treatment plants, using the life cycle assessment approach

Site-specific carbon footprints of Scandinavian wastewater treatment plants, using the life cycle assessment approach

Untitled

The SPPD-WRF Framework: A Novel and Holistic Methodology for Strategical Planning and Process Design of Water Resource Factories

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