The application of green roof for stormwater quantity and quality improvement

N. S., Romali and N. S., Othman and N. N., Mhd Ramli (2021) The application of green roof for stormwater quantity and quality improvement. In: IOP Conference Series: Earth and Environmental Science; 4th National Conference on Wind and Earthquake Engineering, NCWE 2020 , 16 - 17 October 2020 , Putrajaya, Virtual. pp. 1-7., 682 (1). ISSN 1755-1307

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The use of green roof is becoming increasingly worldwide because of its environmental, economic, and aesthetic benefits. The ability to retain storm water and improve the quality of effluent flow are the important characteristics of green roof. It is viewed as a best technology to minimize the negative impact of urbanization. However, the application of green roof in Malaysia is less and literatures regarding these is limited. An attempt has been made to evaluate the performances of green roof in improving the water quantity and quality of stormwater runoff. A lab-scale green roof with five component layers which are vegetation layer using creeping ox-eye and beach morning glory, topsoil substrate layer, non-woven geotextile filter layer, drainage plate layer and liquid waterproofing layer was used. Results indicated that the green roof with creeping ox-eyes shows a better performance in reducing peak flow with as high as 41% percentages of reduction compared to beach morning glory (15%). On the other hand, the green roof with beach morning glory manage to improve the concentration of COD up to 99% improvement while the green roof with creeping ox-eye shows a better performance in improving BOD with 17% reduction.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Effluent flows; Morning glory; Nonwoven geotextiles; Quality improvement
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TH Building construction
Faculty/Division: Institute of Postgraduate Studies
College of Engineering
Faculty of Civil Engineering Technology
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 29 Dec 2021 02:12
Last Modified: 29 Dec 2021 02:12
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