An IUWM incorporated model to improve water supply reliability in intermittent and no service areas

Mohapatra, Snigdha Sarita; Wu, Wenyan; Tiwari, Manoj Kumar; Arora, Meenakshi

doi:10.1016/j.resconrec.2022.106248

Cited by 4 publications

(5 citation statements)

References 52 publications

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Section: Introductionmentioning

confidence: 99%

“…The provision of public services is a widely studied and analyzed topic in the scientific literature [1][2][3]. Among these, the water supply service is one of the most studied in the scientific literature due to its importance, even more so considering the growing concern that exists due to the incipient scarcity of drinking water worldwide [1][2][3][4][5][6][7]. These services, the vast majority of which are provided by local governments [8], play a particularly important role in the daily lives of all citizens, as they have a direct impact on their wellbeing and quality of life [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transparency and Digitalization in Water Services: Reality or Still a Dream?

Zafra-Gómez,

Garrido-Montañés,

López-Pérez

et al. 2024

Water

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The provision of public services, mostly by local governments, has been widely analyzed in the scientific literature. The relevance of these services has generated an incipient demand for information on the part of citizens, which makes it necessary for the bodies responsible for their provision to present adequate levels of transparency. In this context, digitalization is a crucial tool for providing information to citizens and, therefore, contributing to improving the levels of transparency of those organizations that provide public services. Among these, the drinking water supply service stands out, which is crucial for well-being and sustainable progress, and whose analysis is of vital importance, especially in countries such as Spain affected by factors such as climate change and urbanization. In this way, the aim of this paper is to analyze the degree of transparency of the companies providing water supply services in Spain, as well as their degree of digitalization. To this end, a relationship will be established between the Transparency Index of Public Enterprises (INDEP) and the Strategic Project for Economic Recovery and Transformation (PERTE), which measure the degree of transparency and digitalization, respectively. This relationship will be established for a sample of 59 companies responsible for water supply. The main results derived from this study show a wide margin for improvement on the part of the companies analyzed, both in terms of transparency and digitalization, as the vast majority of these companies show a medium–low degree of compliance in both aspects.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transparency and Digitalization in Water Services: Reality or Still a Dream?

Zafra-Gómez,

Garrido-Montañés,

López-Pérez

et al. 2024

Water

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“…With regard to cities, it is becoming apparent that advancing climate change is Water 2023, 15, 1893 2 of 14 increasingly compromising the quality of urban life in general, but also the established quality of urban water management services in particular. This applies to both developed and developing countries [1].…”

Section: Introductionmentioning

confidence: 99%

“…The central hypothesis of this paper is that the Sponge City is described in a conceptually and functionally comprehensive way, but its implementation is hindered by a lack of transformation paths for existing cities and urban neighborhoods developed over a long period of time. In particular, there is a lack of concepts and management approaches on how, in the context of an evolving porous surface and subsurface design in the city, (1) all elementary features of a Sponge City, such as consistent rainwater harvesting solutions, can actually be implemented; (2) the elements of a Sponge City can be brought into good interaction with the already existing grey infrastructures (without which a Sponge City also cannot perform [7,11,12]).…”

Section: Introductionmentioning

confidence: 99%

Using Stormwater in a Sponge City as a New Wing of Urban Water Supply—A Case Study

Köster,

Hadler,

Opitz

et al. 2023

Water

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Rapid and even disruptive innovations are needed to make cities fit for the future. The particular challenge will be to transform existing urban spaces in order to increase climate resilience. Along these lines, rainwater harvesting has taken place insufficiently to date, even when Sponge City concepts are implemented. Thus, the concept presented here addresses existing urban neighborhoods and proposes to collect rainwater from nearby rooftops and treat it in decentral treatment units called “City Water Hubs” (CWH) equipped with modular coupled low-energy technologies to produce various customized “City Water” qualities, and store it until it can be used or distributed. A feasibility study with a focus on the campus area at the main building of the Leibniz University of Hannover, the determined rainwater qualities, and the results from investigations with two laboratory test plants provided the basis for the technical design of the pursued concept. The feasibility study showed how sufficient rainwater for irrigation purposes can be made available for the listed large university park even under extreme dry and heat wave conditions. If large portions of the roof area (11,737 m2) of the university’s main building were activated, even in a dry year with only 49.8% of the average precipitation, only 19.8% of the harvested stormwater would be needed for irrigation. The rainwater samples showed TSS concentrations of up to 7.54 mg/L, COD of up to 58.5 mg/L, and NH4 of up to 2.21 mg/L, which was in line with data reported in the literature. The treatment technologies used for the two pilot plants are proven approaches for stormwater treatment and were composed as follows: (1) gravity-driven membrane filtration (GDM) and (2) slow sand filter with integrated activated carbon (AC) layer. The treatment with both (1) and (2) clearly improved the rainwater quality. The GDM reduced turbidity by 90.4% and the Sand/AC filter by 20.4%. With regard to COD, the studies for GDM did not show a clear elimination trend; the Sand/AC filter reduced the COD by 77%. Taken together, decentralized low-energy rainwater treatment can reliably provide quality-assured City Water for any specific use. Regarding the treatment design, GDM is preferable and can be better operated with downstream UV disinfection, which might be needed to reduce the pathogenic load, e.g., for local heat control measures. The research steps presented here will pioneer the development of a city-wide rainwater harvesting infrastructure on the way of establishing stormwater as a resource for a new wing of urban water supply. The presented findings will now result in the implementation of a full-scale CHW on the campus to ensure long-term irrigation of the listed park, relieving the public drinking water supply.

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“…Garantir o acesso contínuo a água de qualidade para o abastecimento da população é um dos maiores desafios da atualidade e um importante aspecto a ser considerado no projeto dos sistemas de abastecimento (Mohapatra;Wu;Wenyan;Tiwari e Arora, 2022). Além desse fator, surgem problemas relacionados principalmente ao crescimento populacional e às mudanças climáticas que corroboram para o contexto de escassez hídrica em diversas regiões ao redor do mundo (Salehi, 2022).…”

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Calibração de hidrômetro IOT para monitoramento de macromedição

Felinto Filho,

Brandão,

Barbosa

et al. 2023

CLCS

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A escassez hídrica recorrente impulsiona o desenvolvimento de novas tecnologias de gestão da demanda de água, a fim de tornar o consumo por parte da população mais eficiente e adequado às condições ambientais. Entretanto, para que a gestão seja também eficiente, é necessário retirar os entraves, como problemas na distribuição de água. Esta ainda é deficitária no país e marcada pelas perdas, que geram desperdício e maior retirada nos mananciais. Como alternativa para o combate às perdas, há a medição inteligente do consumo, a ser realizada na rede de distribuição de água. Neste trabalho, propôs-se realizar, em laboratório, a calibração do sensor de fluxo YF-DN50, destinado à macromedição de vazões, de baixo custo e fácil acesso, em conjunto com a NodeMCU 1.0. Como resultado foi obtido um novo fator de calibração que reduz o erro médio do sensor de 9% para 2%, aumentando sua eficiência e comprovando sua utilidade ao uso em larga escala.

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An IUWM incorporated model to improve water supply reliability in intermittent and no service areas

Cited by 4 publications

References 52 publications

Transparency and Digitalization in Water Services: Reality or Still a Dream?

Transparency and Digitalization in Water Services: Reality or Still a Dream?

Using Stormwater in a Sponge City as a New Wing of Urban Water Supply—A Case Study

Calibração de hidrômetro IOT para monitoramento de macromedição

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