How decentralized treatment can contribute to the symbiosis between environmental protection and resource recovery

Estévez, Sofía; González‐García, Sara; Feijoó, Gumersindo

doi:10.1016/j.scitotenv.2021.151485

Cited by 31 publications

(16 citation statements)

References 79 publications

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“…Decentralized Wastewater Treatment Systems (DWTS) have been shown to be a sustainable, viable, flexible, reliable, and cost-effective alternative source of water, especially useful on a small scale (Gukelberger et al, 2019;Liu et al, 2021;Maryati et al, 2022). Furthermore, the use of DWRS, apart from enhancing environmental protection and resource recovery, may lead to environmental and local economic development (Jahne et al, 2020;Van de Walle et al, 2022;Estévez et al, 2022).…”

Section: Literature Reviewmentioning

confidence: 99%

Life cycle cost assessment and economic analysis of a decentralized wastewater treatment to achieve water sustainability within the framework of circular economy

López-Serrano

Lakho

Hulle

et al. 2023

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Research background: The increasing water demand together with an unceasing production of wastewater worldwide has resulted in a situation where the scarcity and pollution of water resources are jeopardizing and depleting such a vital asset. Purpose of the article: In this context, Nature Based Solutions (NBS) such as Vertical Flow Constructed Wetlands (VFCWs) are key because of their capacity of channelling a waste into a resource. However, and notwithstanding their essential role, their financial benefits too often go unnoticed because of missing research that study them from an economic perspective and this article has covered this existing gap. The objective of this research is to analyse the economic consequences of using VFCW against its traditional alternative through a comprehensive economic assessment. Methods: After doing a Life Cycle Assessment (LCA), a combination of two approaches has been carried out. This research has developed a holistic approach where a Life Cycle Cost Assessment (LCCA) based on a Cost Benefit Analysis (CBA) along with an economic evaluation of cleaning environmental costs have been calculated for two different scenarios. For this monetary analysis, the environmental externalities derived from the use of cleaning the pollution caused by a public water supply and sewerage system and the VFCW have been quantified. Findings & value added: Results conclude that VFCW apart of being a cost-effective and profitable alternative for an investor, it has also valuable benefits for the society in general because of its meaningful and positive externalities and the high removal cost of the environmental pollutants of the traditional water supply and sewage system both contributing directly to the achievement of Sustainable Development Goals (SDGs). Furthermore, 4/5 environmental impacts derived from the use of traditional alternative pollute more than twice as much as the VFCW does. Lastly, the cleaning costs difference between both alternatives is 1,984,335?.

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Section: Literature Reviewmentioning

confidence: 99%

Life cycle cost assessment and economic analysis of a decentralized wastewater treatment to achieve water sustainability within the framework of circular economy

López-Serrano

Lakho

Hulle

et al. 2023

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“…The centralized wastewater treatment systems consist of collection, treatment, disposal, collection, and discharge or distribution (if treated water is reused). The sewage collection systems also need an extensive piping infrastructure (Estévez et al, 2022). In addition, the complex and scattered topography of rural areas would increase the capital and maintenance cost of the pipeline (Estévez et al, 2022; Huang et al, 2021).…”

Section: Water Resources and Consumptionsmentioning

confidence: 99%

“…The sewage collection systems also need an extensive piping infrastructure (Estévez et al, 2022). In addition, the complex and scattered topography of rural areas would increase the capital and maintenance cost of the pipeline (Estévez et al, 2022; Huang et al, 2021). In 2018, only a quarter of China's rural municipal wastewater was adequately treated, where insufficient fund was one of the contributing factors of the treatment plant infeasibility (Huang et al, 2021).…”

Section: Water Resources and Consumptionsmentioning

confidence: 99%

An assessment of technological development and applications of decentralized water reuse: A critical review and conceptual framework

et al. 2022

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Rapid development, urbanization, and population growth have contributed to water stress in many parts of the world. As freshwater sources are finite, it is essential to source for alternatives to ensure water security. Reclamation of non‐conventional water sources (i.e., rainwater and greywater) can be a viable alternative to alleviate water stress. In this work, various laboratory, pre‐commercialization scale, and commercialized products for rainwater harvesting and greywater treatment and reuse were reviewed. As a result, a conceptual framework is proposed to provide an overview on the applicability of technologies under various settings, which were mapped against the intended use of treated water and the potential for water supply expansion. This conceptual framework could aid decision makers in deciding on a suitable decentralized solution for water reclamation depending on limiting criteria. Decentralized systems of rainwater harvesting and greywater treatment for reuse are going to be crucial in reducing the dependence on the centralized water supply. This article is categorized under: Engineering Water > Planning Water Water and Life > Conservation, Management, and Awareness Science of Water > Water Quality

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“…It poses the greatest impediment to water reuse, since piping the treated water back to the users would be uneconomical. In addition, maintaining the vast network of sewer pipes is very expensive and has resulted in raw wastewater leaking into the ground contaminating drinking water wells, with adverse health implications for millions of people [9].…”

Section: Decentralized Vs Centralized Treatmentmentioning

confidence: 99%

Sustainable Treatment and Reuse of Water using Decentralized Systems

Govind¹

2022

Preprint

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As the scarcity of potable water increases, recycling of treated wastewater is increasing. Small-scale, decentralized treatment can be implemented to serve local populations by keeping water within their boundaries and within reach for reuse, particularly in less dense, non-urban communities. Availability of cellular networks and high-speed internet connectivity, along with significant reduction in cost, allows ongoing monitoring of decentralized treatment systems at a central location. In this paper a decentralized treatment system using micro nanobubble aeration, moving media and membranes is able to produce reusable water with low energy consumption, thereby allowing the use of solar energy in places with unreliable electrical supply. The treatment system, which uses no external chemicals, is able to operate unattended and deliver clear, disinfected water with non-detect suspended solids, BOD5 less than 10 mg/L and nutrients below 5 mg/L.

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How decentralized treatment can contribute to the symbiosis between environmental protection and resource recovery

Cited by 31 publications

References 79 publications

Life cycle cost assessment and economic analysis of a decentralized wastewater treatment to achieve water sustainability within the framework of circular economy

Life cycle cost assessment and economic analysis of a decentralized wastewater treatment to achieve water sustainability within the framework of circular economy

An assessment of technological development and applications of decentralized water reuse: A critical review and conceptual framework

Sustainable Treatment and Reuse of Water using Decentralized Systems

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