Functional rainwater garden applicable to sponge community
A rain garden and functional technology, applied in the direction of runoff/rainwater treatment, sewage discharge, water supply equipment, etc., can solve problems such as complex composition, groundwater pollution, and limited soil removal capacity for pollutants
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[0029] The present invention will be further described below in conjunction with the accompanying drawings.
[0030] Such as figure 1 As shown, a functional rain garden suitable for a sponge community includes a pre-filtration layer 2, an aquifer 3 and an overflow facility 4.
[0031] Among them, the pre-filtration layer 2 includes a side slope and a zeolite-activated carbon filter system and grass planting covered on the side slope. The side slope is located at the junction of the garden and the green space around the garden. The angle between the side slope 2 and the horizontal direction is about 30° , The zeolite-activated carbon filter system is composed of 40% gravel, 30% activated carbon and 30% zeolite by volume. The thickness of the zeolite-activated carbon filter system is 8-10cm. The particle size range of gravel, activated carbon and zeolite 3-8cm, and the grasses are perennial herb tall fescue, ryegrass and the like.
[0032] The aquifer 3 is a space formed by th...
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