Stormwater Management in Sponge Cities

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Urban Water Management".

Deadline for manuscript submissions: 25 September 2024 | Viewed by 830

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Escola de Ciências e Tecnologia, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
Interests: wastewater and greywater reuse; rainwater harvesting; low impact development; energy to water nexus; urban drainage systems
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Dear Colleagues,

Sponge cities are urban areas designed to absorb, capture, and manage stormwater runoff in a sustainable manner, mimicking the natural hydrological cycle. This concept is a response to rapid urbanization and the increased instances of flooding and water pollution.

Some key aspects of stormwater management in sponge cities include the permeable surfaces such as permeable pavements, green roofs, and porous sidewalks. These surfaces allow rainwater to infiltrate into the ground rather than running off into storm drains. Incorporating green infrastructure elements like rain gardens, bioswales, and vegetated swales helps to capture and absorb stormwater. These features not only manage stormwater but also provide additional benefits such as improving air quality, enhancing biodiversity, and reducing urban heat island effect. Water Harvesting and Reuse is another key aspect to promote the harvesting and reuse of stormwater for various purposes such as irrigation, toilet flushing, and groundwater recharge. This reduces the demand of potable water sources and helps to mitigate water scarcity. By implementing these strategies and technologies, sponge cities aim to mitigate the adverse impacts of urbanization on water resources, improve urban resilience to climate change, and create healthier and more sustainable urban environments.

Effective stormwater management in sponge cities requires integrated planning and public awareness and education.

We particularly invite contributions concerning the various aspects described in the summary.

Dr. Cristina Matos
Guest Editor

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Keywords

  • NbS
  • rainwater and stormwater management
  • stormwater quality
  • runoff reduction

Published Papers (1 paper)

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Research

24 pages, 3470 KiB  
Article
Improving the Efficiency and Environmental Friendliness of Urban Stormwater Management by Enhancing the Water Filtration Model in Rain Gardens
by Maryna Kravchenko, Yuliia Trach, Roman Trach, Tetiana Tkachenko and Viktor Mileikovskyi
Water 2024, 16(10), 1316; https://doi.org/10.3390/w16101316 - 7 May 2024
Viewed by 652
Abstract
Rain gardens are used to solve urban problems related to the negative impact of stormwater. (1) Scientific contributions from different countries provide general guidelines for the design and operation of rain gardens in different geographical areas. Given the small spatial scale of rain [...] Read more.
Rain gardens are used to solve urban problems related to the negative impact of stormwater. (1) Scientific contributions from different countries provide general guidelines for the design and operation of rain gardens in different geographical areas. Given the small spatial scale of rain gardens, the use of existing infiltration models often leads to design errors. (2) The purpose of this paper is to develop a hydrological model by introducing a system of equations that extends the ability to calculate the rate, flow rate and time of saturation of layers with moisture and rainwater leakage from the rain garden system. (3) The results obtained allow us to describe the dynamic processes of passage and saturation of layers of the rain garden at a certain point in time, which extends the ability to calculate the flow rate. It was established that the smaller the area of the rain garden compared to the area of the catchment basin, the faster it reaches its full saturation. Increasing the thickness of the rain garden layers allows for an increase in the efficiency of water retention at a lower value of the area ratio. (4) The practical significance of the results obtained is especially important for the correct description of hydrodynamics in the system and determining the optimal conditions for the effective functioning and management of the rain garden structure for any climatic region. Full article
(This article belongs to the Special Issue Stormwater Management in Sponge Cities)
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