Human urine management in resource-based sanitation: water-energy-nutrient nexus, energy demand and economic performance

Medeiros, Diego Lima; Kiperstok, Alice Costa; Nascimento, Francisco Ramon Alves do; Cohim, Eduardo; Kiperstok, Asher

doi:10.1016/j.spc.2020.12.043

Cited by 20 publications

(6 citation statements)

References 32 publications

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“…Based on the consumption data and the provided employee count from SAE, which amounted to three times per day, Table 3 has been established, considering the use of non-potable water for toilet flushing. It is noteworthy that this frequency of toilet use aligns with the approach taken by Medeiros et al (2021). As per the "The Rational Use of Water in Commerce" handbook (Maia et al, 2010), an employee's daily water consumption for sanitary purposes is approximately 50 liters, a value closely resembling the data presented in Tables 2 and 3.…”

Section: Productionsupporting

confidence: 67%

Decentralized greywater treatment for reuse: a cost – benefit study for knowledge-based urban development (KBUD) Parks

Oliveira,

Guedes,

Cruz

2024

Inter. J. Sci. Manag. Tour.

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Os sistemas de tratamento descentralizado são uma alternativa às tradicionais estações centralizadas, que tratam os efluentes domésticos nas grandes cidades. A descentralização é importante em áreas distantes do centro da cidade e pode facilitar o reúso em um mesmo edifício, transformando o local em uma região mais sustentável. Esses sistemas podem ser bem aplicados em Parques de Desenvolvimento Urbano Baseado em Conhecimento (KBUD), principalmente os de quarta geração, que também consideram o meio ambiente como uma pedra fundamental do desenvolvimento. Assim, nosso objetivo foi verificar a viabilidade do sistema descentralizado de tratamento de água cinza para produzir água não potável a ser reutilizada em um escritório no International Hub for Sustainable Development (HIDS), um KBUD de quarta geração. Em uma revisão bibliográfica, o Wetland foi considerado a melhor opção e a análise de custo-benefício foi realizada. A estimativa de demanda e produção de água cinza (inclui água de fontes como pias, chuveiros, banheiras, máquinas de lavar e utensílios de cozinha, exceto a água de vasos sanitários) foi baseada em dados coletados em campo nos departamentos da Universidade de Campinas (UNICAMP). Como resultado, o sistema foi projetado para tratar 135 m³ de água por mês, levando a uma economia de 22,65 m³ de água por mês. A economia mensal será de US$ 415. Com base nas estimativas de custo, a economia gerada recuperaria o investimento inicial do sistema em menos de três meses de uso, com uma taxa interna de retorno (TIR) de 34,9% em um ano. Assim, o custo-benefício é substancial, uma vez que o retorno do investimento é rápido. Portanto, o sistema é viável e interessante do ponto de vista sustentável.

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Section: Productionsupporting

confidence: 67%

Decentralized greywater treatment for reuse: a cost – benefit study for knowledge-based urban development (KBUD) Parks

Oliveira,

Guedes,

Cruz

2024

Inter. J. Sci. Manag. Tour.

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“…Policies for supporting the regional circular economy and… in order to reconsider energy management for supporting circular principles (Van der Velden 2021; Farooq et al 2021). In order to boost circular activities, current energy policies need to be revisited all the way from the microlevel (Kosmadakis et al 2021) to the macrolevel (D'Adamo, et al 2021), in order to improve efficiency (Yildizbasi 2021) and recovery (Bezirgiannidis et al 2020), by redesigning all stages of production (Diamantis et al 2021), from resource harvesting to disposal (Al-Mawali et al 2021;Medeiros et al 2021) and end-of-life practices (Jensen et al 2020). Furthermore, policy interventions should be considered involving the effective energy interdependence of individual industries within the industrial ecology/symbiosis concept (Al-Thani and Al-Ansari 2021; Ipsakis et al 2021).…”

Section: Circular Economy and Sustainabilitymentioning

confidence: 99%

Policies for supporting the regional circular economy and sustainability

2022

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The Circular Economy and Sustainability are among the greatest challenges faced by policymakers, producers, and consumers. Circular Economy processes demand less from the environment since they can minimize waste generation and, hence, can be powerful tools to combat the negative effects of climate change. Additionally, following subsidiarity principles, public policies supporting the Circular Economy should be designed at the lowest levels of public administrations-this provides huge opportunities for regional governments to design, implement and monitor these policies. This editorial of the special issue explores and discusses implications for those policies before introducing the five papers published in the special issue dedicated to policies for regional economy and sustainability. While some of the papers attempt to conceptualize sustainable development through a microeconomic perspective, others have a clear macroeconomic empirical focus. In consequence, this special issue provides a rich body of work for further Circularity and Sustainability nexus studies.

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“…That is to say, there will be no excess supply and demand for products, manufacturers and residents are both price takers, and there is no arbitrage phenomenon for producers. The typical standard structure of the CGE model mainly has six modules [7][8]. A typical CGE model is mainly composed of three parts:…”

Section: Theoretical Basis Of the Cge Modelmentioning

confidence: 99%

Integrated Consumption and Benefit Evaluation Model of Clean Energy Based on CGE Model

2022

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At present, the development of advanced technologies such as ultra-high voltage has achieved far-reaching, large-scale and accumulated power transmission, and the global energy Internet is gradually taking shape. The original high-energy consumption and low-efficiency power generation methods can no longer meet the requirements of the contemporary economy and society. Clean energy has become the main direction of electric power development: wind power is the main clean energy source, and its production technology is relatively mature, but there are difficulties in consumption. The main purpose of this paper is to study the integrated consumption and benefit evaluation model of clean energy based on the CGE model. Combining the fuzzy grey relational cluster analysis theory, this paper proposes a new method for evaluating the characteristics of new energy consumption strategy implementation indicators based on demand response, and evaluates the new energy consumption strategy. Experiments have shown that in terms of the impact on traditional electricity prices, due to the increase in solar electricity price subsidies, its prices also show a downward trend. Similar to the change trend of fossil energy.

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Human urine management in resource-based sanitation: water-energy-nutrient nexus, energy demand and economic performance

Cited by 20 publications

References 32 publications

Decentralized greywater treatment for reuse: a cost – benefit study for knowledge-based urban development (KBUD) Parks

Decentralized greywater treatment for reuse: a cost – benefit study for knowledge-based urban development (KBUD) Parks

Policies for supporting the regional circular economy and sustainability

Integrated Consumption and Benefit Evaluation Model of Clean Energy Based on CGE Model

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