The invention relates to an artificial
wetland high-efficiency pre-
aeration sewage treatment system, which comprises a
bar screen, a primary
sedimentation tank, a venturi, a splash board and an artificial
wetland connected in turn, wherein the
bar screen is positioned in the front of the primary
sedimentation tank; the inlet of the gradually reducing part of the venturi is connected with the upper part of the primary
sedimentation tank through a high-pressure pump, the
throat part is connected with the
atmosphere through an air inlet
pipe, and the outlet of the gradually expanding part is provided with a jet
pipe extending forwards; and the splash board is positioned above the artificial
wetland in front of the jet
pipe. The artificial wetland adopts a horizontal baffling structure, the water outlet is provided with a
water storage tank, and the
water storage tank is provided with a
backflow pipe connected with the water inlet end of the artificial wetland. The artificial wetland high-efficiency pre-
aeration sewage treatment system has a simple structure and reasonable process, and through the high-efficiency
aeration of the venturi and the splash board, the artificial wetland high-efficiency pre-aeration
sewage treatment system improves the biochemical reaction types and the
reaction speed in the artificial wetland, improves the surrounding environment, and is helpful to improve the purification degree of the yielding water of the artificial wetland. The artificial wetland high-efficiency pre-aeration
sewage treatment system has the advantages of simple structure, convenient operation and good adaptability, allows the sewage quantity to have
large range of variation, and is mainly adapted to the treatment of domestic sewage.