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Article

Analyzing the Impacts of Sewer Type and Spatial Distribution of LID Facilities on Urban Runoff and Non-Point Source Pollution Using the Storm Water Management Model (SWMM)

Water Environmental Research Department, National Institute of Environmental Research (NIER), Hwangyong-ro 42, Seogu, Incheon 22689, Korea
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Academic Editors: Jan K. Kazak, Jolanta Dąbrowska and Agnieszka Bednarek
Water 2022, 14(18), 2776; https://doi.org/10.3390/w14182776
Received: 20 July 2022 / Revised: 31 August 2022 / Accepted: 1 September 2022 / Published: 6 September 2022
(This article belongs to the Special Issue Stormwater Management in Urban and Rural Areas)
The negative changes in the hydrological cycle are increasing due to climate change and urbanization, resulting in deterioration of water quality and environmental issues. Although Low-Impact Development (LID) techniques studies have been conducted to solve this problem, the spatial distribution of LID facilities and sewer types has received less attention. In this study, it is proposed to analyze the effects of sewer type, the spatial distribution of LID facilities, and LID type on runoff and water quality using the Storm Water Management Model and to identify effective ways of improving the hydrological cycle and Non-Point Source (NPS) pollution associated with urbanization. As a result of the runoff reduction analysis, 68% of the rainfall was discharged at the outlet for separate sewers, 79% for combined sewers without storage tank, and 49% for combined sewers with storage tank. The LID scenario results showed the distributed LID application method has higher reduction efficiency of runoff and NPS pollution than the intensive application method. Moreover, intensive application of LID in downstream areas resulted in higher runoff reduction efficiency than the application of LID in upstream areas. It will be used not only in the hydrological cycle plan but also in NPS pollution management. View Full-Text
Keywords: LID technique; sewer type; hydrological cycle; non-point source pollution; SWMM LID technique; sewer type; hydrological cycle; non-point source pollution; SWMM
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MDPI and ACS Style

Lee, J.; Kim, J.; Lee, J.M.; Jang, H.S.; Park, M.; Min, J.H.; Na, E.H. Analyzing the Impacts of Sewer Type and Spatial Distribution of LID Facilities on Urban Runoff and Non-Point Source Pollution Using the Storm Water Management Model (SWMM). Water 2022, 14, 2776. https://doi.org/10.3390/w14182776

AMA Style

Lee J, Kim J, Lee JM, Jang HS, Park M, Min JH, Na EH. Analyzing the Impacts of Sewer Type and Spatial Distribution of LID Facilities on Urban Runoff and Non-Point Source Pollution Using the Storm Water Management Model (SWMM). Water. 2022; 14(18):2776. https://doi.org/10.3390/w14182776

Chicago/Turabian Style

Lee, Jimin, Jinsun Kim, Jong Mun Lee, Hee Seon Jang, Minji Park, Joong Hyuk Min, and Eun Hye Na. 2022. "Analyzing the Impacts of Sewer Type and Spatial Distribution of LID Facilities on Urban Runoff and Non-Point Source Pollution Using the Storm Water Management Model (SWMM)" Water 14, no. 18: 2776. https://doi.org/10.3390/w14182776

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