Diagnosis of pipe illicit connections and damaged points in urban stormwater system using an inversed optimization model

Xu, Zuxin; Qu, Yang; Wang, Siyu; Chu, Wenhai

doi:10.1016/j.jclepro.2021.126011

Cited by 19 publications

(10 citation statements)

References 15 publications

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“…Recently, studies related to improving the accuracy, efficiency, and robustness of hydrological models have been highlighted (Pang et al, 2020;Yin et al, 2020;. Moreover, these stormwater management models are increasingly coupled with other platforms or models to achieve more comprehensive functions or to run simulations at larger spatial scales (Duan and Gao, 2019;Xu et al, 2021). Hydrological models were also integrated with remote sensing techniques, and neural networks have become more popular Wu Z et al, 2021).…”

Section: Case Studies In Chinamentioning

confidence: 99%

Nature-Based Solutions for Urban Water Management

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Case Studies In Chinamentioning

confidence: 99%

Nature-Based Solutions for Urban Water Management

2024

Frontiers Research Topics

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“…Recently, studies related to improving the accuracy, efficiency, and robustness of hydrological models have been highlighted (Pang et al, 2020;Yin et al, 2020;Tang et al, 2021). Moreover, these stormwater management models are increasingly coupled with other platforms or models to achieve more comprehensive functions or to run simulations at larger spatial scales (Duan and Gao, 2019;Liang et al, 2020;Xu et al, 2021). Hydrological models were also integrated with remote sensing techniques, and neural networks have become more popular Wu Z et al, 2021).…”

Section: Social Benefitsmentioning

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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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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“…In addition, the construction cycle of drainage systems in developing countries is not synchronized, which causes the illegal connection of sewage pipes to stormwater pipes for separate sewer systems in developing counties. [4][5][6][7] This may pose another potential risk of untreated wastewater entering the natural waters and potentially contaminating drinking water sources through separate stormwater drainage systems. 5 In addition to the large amount of organic pollutants introduced and potential ECs, the charge of dissolved organic matter (DOM) in the urban stormwater drainage system resulted in increased precursors of highly toxic haloacetaldehydes (HALs) and haloacetonitriles (HANs), which may have adverse effects on downstream water quality.…”

Section: Introductionmentioning

confidence: 99%