King Kuok, Kuok and Po Chan, Chiu and Mei Yun, Chin and Md Mizanur, Rahman and Muhammad Khusairy, Bakri (2023) Green Roof Performance for Stormwater Management in Equatorial Urban Areas Using Storm Water Management Model (SWMM). Journal of Water Resource and Protection, 15 (12). pp. 706-720. ISSN 1945-3108,1945-3094
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Abstract
Many Low Impact Developments (LIDs) have recently been developed as a sustainable integrated strategy for managing the quantity and quality of stormwater and surrounding amenities. Previous research showed that green roof is one of the most promising LIDs for slowing down rainwater, controlling rainwater volume, and enhancing rainwater quality by filtering and leaching contaminants from the substrate. However, there is no guideline for green roof design in Malaysia. Hence, Investigating the viability of using green roofs to manage stormwater and address flash flood hazards is urgently necessary. This study used the Storm Water Management Model (SWMM) to evaluate the effectiveness of green roof in managing stormwater and improving rainwater quality. The selected study area is the multi-story car park (MSCP) rooftop at Swinburne University of Technology Sarawak Campus. Nine green roof models with different configurations were created. Results revealed that the optimum design of a green roof is 100 mm of berm height, 150 mm of soil thickness, and 50 mm of drainage mat thickness. With the ability to reduce runoff generation by 26.73%, reduce TSS by 89.75%, TP by 93.07%, TN by 93.16%, and improved BOD by 81.33%. However, pH values dropped as low as 5.933 and became more acidic due to the substrates in green roof. These findings demonstrated that green roofs improve water quality, able to temporarily store excess rainfall and it is very promising and sustainable tool in managing stormwater.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Green Roof, Low Impact Development (LID), Storm Water Management, Model (SWMM), Storage Capacity, Pollutants Removal |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Computer Science and Information Technology Faculties, Institutes, Centres > Faculty of Computer Science and Information Technology Academic Faculties, Institutes and Centres > Faculty of Computer Science and Information Technology |
| Depositing User: | Chan |
| Date Deposited: | 27 Dec 2023 02:51 |
| Last Modified: | 27 Dec 2023 02:51 |
| URI: | http://ir.unimas.my/id/eprint/43894 |
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