Alpine area contact oxidation-artificial wetland combined treatment system and method thereof for treating rural domestic sewage
A technology for artificial wetlands and alpine regions, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as inability to use in alpine regions, strong seasonal influence, etc., to achieve heat preservation Good performance, reduced energy consumption, and the effect of preventing heat loss
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specific Embodiment approach 1
[0009] Specific implementation mode one: (see attached figure 1 And attached figure 2 ) The contact oxidation-constructed wetland combination treatment system in the alpine region of this embodiment is sequentially composed of a regulating pond, a primary sedimentation pond, a biological contact oxidation pond, a secondary sedimentation pond, a horizontal subsurface flow artificial wetland and a stabilization pond, wherein the regulating pond, the primary sedimentation pond and the secondary settling tank are built underground, and the tops of the regulating tank, primary settling tank and secondary settling tank are 1.60m to 2.00m above the ground; the biological contact oxidation tank is built in a room with a temperature of 10°C to 14°C, and the horizontal subsurface flow artificial wetland is added. The greenhouse is covered, and the temperature in the greenhouse is maintained at 8°C to 12°C. The horizontal subsurface flow artificial wetland is composed of the first secti...
specific Embodiment approach 2
[0011] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the bottom of the first section of the artificial wetland bed and the second section of the artificial wetland bed are laid with geotextiles, and the thickness of the top of the geotextiles is 0.25m ~ 0.35m The yellow clay layer has a gradient of 0.0015-0.0025 along the water flow direction, and the upper part of the yellow clay layer is a matrix layer with a thickness of 0.6m-0.8m. The matrix is composed of gravel and slag in a volume ratio of 1:1- 1.3 It is formed by mixing, and above the base layer is a humus layer with a thickness of 0.5m to 0.6m, and emergent plants are planted in the humus. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0012] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the bottom of the first section of the constructed wetland bed area and the second section of the constructed wetland bed area are laid with geotextiles, and the top of the geotextiles is a 0.30m thick The yellow clay layer, the slope of the yellow clay layer along the water flow direction is 0.0020, the upper part of the yellow clay layer is the matrix layer, the thickness of the matrix layer is 0.7m, the matrix is composed of gravel and slag in a volume ratio of 1:1.2, in the matrix layer Above is a humus soil layer with a thickness of 0.55m, and emergent plants are planted in the humus soil. Others are the same as in the first embodiment.
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