Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

A Review of Roof and Pond Rainwater Harvesting System: The Design, Performance and Way Forward

Version 1 : Received: 22 September 2020 / Approved: 23 September 2020 / Online: 23 September 2020 (10:19:59 CEST)

How to cite: Zabidi, H.A.; Goh, H.W.; Chang, C.K.; Chan, N.W.; Zakaria, N.A. A Review of Roof and Pond Rainwater Harvesting System: The Design, Performance and Way Forward. Preprints 2020, 2020090549 (doi: 10.20944/preprints202009.0549.v1). Zabidi, H.A.; Goh, H.W.; Chang, C.K.; Chan, N.W.; Zakaria, N.A. A Review of Roof and Pond Rainwater Harvesting System: The Design, Performance and Way Forward. Preprints 2020, 2020090549 (doi: 10.20944/preprints202009.0549.v1).

Abstract

This paper reviews the design and component of two types of RWHS, namely roof harvesting system (RHS) and pond harvesting system (PHS). The performance in terms of quantity and quality of collected rainwater and energy consumption for RWHS with different capacities were evaluated, as well as the benefits and challenges particularly in environmental, economic and social aspects. Presently, RHS is more commonly applied but its effectiveness is limited by its small scale. The PHS is of larger scale and has greater potentials and effectiveness as an alternative water supply system. Results also indicate the many advantages of PHS especially in terms of economics, environmental aspects and volume of water harvested. While RHS may be suited to individual or existing buildings, PHS has greater potentials and should be applied in newly developed urban areas with wet equatorial climate.

Subject Areas

domestic water demand; pond harvesting system; roof harvesting system; rainwater harvesting system; water scarcity; stormwater management

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