|Analysis of stormwater harvesting and reuse in a residential community
|Wang, Yu-hong (CEE)
Urban runoff -- Management
Water reuse -- Management
Hong Kong Polytechnic University -- Dissertations
|Department of Civil and Environmental Engineering
|2, 113 pages : illustrations
|In this paper, the role of 'sponge facilities,' such as rainwater tanks and special permeable pavements, in the collection and reuse of rainwater resources in a residential community in Shenzhen is studied. Firstly, SWMM modeling was carried out for the current community and the 'sponge community' (also called the LID community). The effect of distributed rainwater tanks and permeable pavements on the reduction of rainfall-runoff in this area was quantitatively analyzed. Secondly, artificial neural network (ANN) forecasting model and singular spectrum analysis (SSA) data preprocessing technology are used to predict the daily rainfall on May 1and May 14, 2019, in the research area. Thirdly, the transpiration and evapotranspiration characteristics of five plants suitable for planting in this area are summarized, and the irrigation water requirement for greening in the community was estimated according to the garden coefficient method. What's more, the irrigation schedule is also developed. Based on the above, a 14-day operation and management scheme of fifty rainwater tanks is formulated, which will make the harvesting and reuse of rainwater resources in the community more scientific.
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