Rain collection purification system for preventing water and soil loss caused by rain wash in mountains
A purification system and rainwater flushing technology, which is applied in general water supply conservation, water conservancy projects, water supply installations, etc., can solve the problems of lack of rainwater collection and purification methods, troublesome preparation of plant functional complexes, and inability to effectively intercept pollutants, etc., to achieve Solve the uneven distribution of time and space, prevent soil erosion, and stabilize the effect
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[0018] As attached figure 1 As shown, two sets of rain collection and purification systems are designed from the top of the slope to the bottom of the slope. The single system is to excavate a trapezoidal diversion ditch and outlet weir with a wide upper and a narrow bottom in the mountains. The size is 30cm at the bottom and 50cm at the top. 20cm, the flood-tolerant plants planted in the diversion ditch are bitter grass or pasture; a rainwater collection tank 4 is set in the middle of the diversion ditch, designed as a semi-underground type, the top of the collection tank is lower than the bottom of the trapezoidal diversion ditch, and the water inlets on both sides of the water tank are equipped with wire mesh 5. The bottom of the wire mesh is 3-5cm higher than the bottom of the diversion ditch, and the upper part of the water tank is filled with coarse and fine gravel filter materials, which are 2~3cm larger gravel layer, 1~2cm medium gravel layer and 0.5~1cm ...
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