Pre-Treatment of Karst Groundwater Recharge with Roofwater System

Abstract:

Urban roofwater harvesting and reuse plays a more and more important role in alleviating the pressure of urban flood control and water shortage. Roofwater was injected into aquifers after initial removal and pre-treatment to add groundwater supply, this methodology was tested in the roof of NO.1 teaching building on the west campus of University of Jinan, where the recharge system was designed and the device of initial rainwater removal was developed. The identification of rainfall intensity and hydraulic calculation of recharge system were carried out. In view of the characteristics of roofwater pollutants, the media, particular size, thickness and rate of filter material were determined by laboratory tests. It is an auto-recharge and gravity-driven system, which was proved to be feasible by the recharge test at the end of flood seasons in 2011.

• Periodical: Applied Mechanics and Materials (Volumes 212-213)
• Pages: 307-310
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.212-213.307
• Online since: October 2012
• Authors: Wei Ping Wang, Ya Qun Zhou, Hai Yan Deng
• Keywords: Harvesting and Reuse, Managed Aquifer Recharge, Urban Roofwater

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