Decentralized Water Supply Management Model: a Case Study of Public Policies for the Utilization of Rainwater

Fernandes, Suélen; Bonfante, Mariele Canal; Oliveira, Carla Tognato de; Maldonado, Maurício Uriona; Campos, Lucila Maria de Souza

doi:10.1007/s11269-020-02575-8

Cited by 7 publications

(3 citation statements)

References 28 publications

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“…How the collected water is then used (e.g., toilet flushing and urban irrigation) cannot be simulated by current stormwater management models, to our best knowledge. In the "utilization" category, we've clarified how to assign collected rainwater or treated stormwater (Takagi et al, 2018;Fernandes et al, 2020;Hajani and Rahman, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…For example, the capability of stormwater storage is related to the size of rain tank or reservoir (Vargas et al, 2019;Kim et al, 2021). Domestic water demand can be affected the public policies and local population and industries (Takagi et al, 2018;Fernandes et al, 2020). Sustainable stormwater management can alleviate the water scarcity with some degree (Morales-Torres et al, 2016).…”

Section: Utilizationmentioning

confidence: 99%

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Stormwater Management Modeling in “Sponge City” Construction: Current State and Future Directions

Liu

Cui

Tian

et al. 2022

Front. Environ. Sci.

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In response to urban pluvial flooding and pollution, the Chinese government proposed a “sponge city” policy in 2013 that aims to improve urban stormwater management and promote sustainable urban development. However, at present, sponge city construction is still in its exploratory stage. It is still not clear which models are capable of simulating the six key processes (i.e., “retention,” “infiltration,” “storage,” “purification,” “discharge,” and “utilization”) of sponge city practices. Its various benefits (e.g., social, economic and environmental benefits) have not yet been systematically investigated in the context of the sponge city. In this study, we reviewed and compared 19 urban stormwater management models (including 13 hydrological models and 10 decision-support tools, as there are 4 overlap ones) and investigated their application in China. Firstly, we examined the mechanisms behind the hydrological models and compared the abilities of the models to simulate various processes. Secondly, we analyzed what kinds of benefits can be addressed by these decision support tools (DSTs). Finally, we discussed the applications and limitations of the models in various climate zones in China. The findings suggest that none of the models consider the impact of climate change on the sponge city practices (SCP) and none of DSTs can simulate the negative performance of SCP. Furthermore, the lack of sufficient databases in China limited the applications of many of the models. Additionally, we found that the hydrological processes corresponding to “storage” were given more attention in southern China, and “infiltration” of stormwater was of greater concern in northern China. In the context of sponge city construction, this paper provides suggestions for future model development of urban stormwater management in China, such as the development of a stormwater database and the incorporation of long-term climate change impacts into the model.

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Section: Discussionmentioning

confidence: 99%

Section: Utilizationmentioning

confidence: 99%

Stormwater Management Modeling in “Sponge City” Construction: Current State and Future Directions

Liu

Cui

Tian

et al. 2022

Front. Environ. Sci.

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“…Socioeconomic criteria should incorporate issues such as distance from settlements, family size, education level and water price, which can improve the RWH effectiveness (Pavolová et al 2019) while at the same time allowing for the planning of future structures. Furthermore, other factors such as funding and government subsidies (Fernandes et al 2020;Shiguang & Yu 2021) can make the RWH economically viable. Nevertheless, the establishment of good socioeconomic indicators associated with RWH system performance is much more difficult for socioeconomic conditions than for technical conditions (Adham et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Socioeconomic potential for rainwater harvesting systems in southern Brazilian municipalities

et al. 2021

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The implementation of rainwater harvesting (RWH) systems depends on technical and socioeconomic assessments. However, most studies do not consider socioeconomic aspects, which could lead to different degrees of RWH implementation and technology selection due to economic constraints and local regulations. We evaluated the socioeconomic potential for RWH as an alternative for water supply of 24 Southern Brazilian municipalities with less than 50,000 inhabitants. A total of 10,080 RWH configurations were assessed and a reliability analysis was carried out to define the RWH system configurations potentially implementable (RWH+) in each municipality. RWH economic benefits were estimated from a social point of view, based on the reduction of the monthly water payment. Overall, RWH+ supplying higher demands with higher economics savings were feasible, as expected. However, several municipalities that showed RWH+ supplying 100% of the domestic water demands obtained lower economic savings, due to low water tariff and water consumption. Still, a set of municipalities presented RWH+ for rainwater demand replacing 50% to 60% of the residential demand, for which the high-water tariffs reflected in higher economics savings. The advantages of using the RWH systems outstand even more when the investments at Federal and Local levels are considered.

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Impact of Installing Rainwater Harvesting System on Urban Water Management

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Reis

Campos

2022

Water Resour Manage

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Decentralized Water Supply Management Model: a Case Study of Public Policies for the Utilization of Rainwater

Cited by 7 publications

References 28 publications

Stormwater Management Modeling in “Sponge City” Construction: Current State and Future Directions

Stormwater Management Modeling in “Sponge City” Construction: Current State and Future Directions

Socioeconomic potential for rainwater harvesting systems in southern Brazilian municipalities

Impact of Installing Rainwater Harvesting System on Urban Water Management

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