Waste water ecological treatment for cold and arid areas
An ecosystem and wastewater treatment technology, applied in waterway systems, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of difficult application of constructed wetland systems, fast water infiltration, and difficulty in water retention.
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[0007] The main body of the ecological treatment system includes the vegetation restoration layer (101) above the frozen soil layer, the undercurrent layer (102) and the impervious layer (103) below the frozen soil layer; the undercurrent layer includes the front-end gabion part and the multi-media filler layer (coarse gravel, powder). One or more of coal ash-based ceramsite, coal gangue, calcite, volcanic rock, natural zeolite, quartz sand and natural sand), with water distribution wells (105) and collection wells (107) on both sides, and water distribution wells (105) Equipped with an aeration system (106) and a single-sided splash wall and filter wall. The effluent collection pipe is composed of a perforated water collection branch pipe and a collection header. The bottom of the collection header is equipped with an emptying valve, and the collection well is equipped with an internal circulation pump.
[0008] An operation method of wastewater ecological treatment system used i...
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