Artificial wetland high-efficiency pre-aeration sewage treatment system
A technology for sewage treatment system and constructed wetland, applied in the field of comprehensive sewage treatment system and sewage treatment system, can solve the problems of unsuitable pollution concentration, blockage and large area, avoid suspended sludge and peculiar smell, and improve treatment conditions , the effect of reducing pollutant load
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[0009] see figure 1 , the present invention provides a constructed wetland high-efficiency pre-aeration sewage treatment system, including a grid 1, a primary sedimentation tank 2, a venturi tube 4, a splash plate 5 and a constructed wetland 6 connected in sequence, and the grid is located at the In the front of the primary sedimentation tank, the inlet of the tapering part of the venturi tube is connected to the upper part of the primary sedimentation tank through a high-pressure pump 3, the throat is connected to the atmosphere through an air intake pipe, and the outlet of the diverging part is provided with a jet pipeline extending forward , the splash plate is located above the constructed wetland in front of the jet tube.
[0010] Most of the grilles can be mechanical grilles to improve work efficiency and the ability to screen out foreign matter.
[0011] The lower part of the primary settling tank is in the shape of an inverted truncated cone to facilitate the depositi...
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