Introducing an Innovative Design Approach for Drainage Systems: Facilitating Shallow Aquifer Recharge and Mitigating Flooding

Maringá, in southern Brazil, is undergoing a crisis with the alternation of dry and wet periods and floods caused by heavy rainfall along with the lack of infiltration of the stormwater. Due to a combination of these two opposite factors, the central lake of Ingá Park, which is an important urban pa...

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Bibliographic Details
Published in:Sustainability 2023-09, Vol.15 (18), p.13584
Main Authors: Uyeno, Marcio Takashi, Bairros, Lucas Gabriel de Souza, Lukiantchuki, Juliana Azoia, Okawa, Cristhiane Michiko Passos, Lautenschlager, Sandro Rogerio
Format: Article
Language:English
Subjects:
Aquifers
Brazil
Cities
Drainage
Floods
Geographic information systems
Green design
Groundwater
Groundwater recharge
Parks & recreation areas
Rain
Rain and rainfall
Simulation methods
Soil erosion
Stormwater management
Sustainability
Sustainable design
Sustainable development
Urban areas
Urbanization
Water shortages
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Summary:Maringá, in southern Brazil, is undergoing a crisis with the alternation of dry and wet periods and floods caused by heavy rainfall along with the lack of infiltration of the stormwater. Due to a combination of these two opposite factors, the central lake of Ingá Park, which is an important urban park of the city, is suffering from water level reduction. This paper aims to verify if a sustainable drainage system design with infiltration wells can help recharge the surface aquifer. To this end, a stormwater drainage system simulation was conducted using SewerGEMS. Additionally, a calibrated shallow aquifer computational model was run in Visual Modflow Flex considering recharge wells to verify whether rainfall events impact the water levels of the surface aquifer. The results show that the sustainable intervention in a drainage system to increase stormwater infiltration has the potential to effectively recharge the shallow aquifers, while helping, at the same time, the drainage system, which is operating beyond design capacity, and the Ingá Park Lake. Thus, this study demonstrates that the sustainable design of drainage systems can help restore the springs inside the urban park. However, it is important to continuously monitor the wells’ heads and the hydrological variables. Also, for future studies, new models and simulations must be undertaken using the continuous monitoring data already available.
ISSN:2071-1050
2071-1050
DOI:10.3390/su151813584