The invention relates to the field of
environmental protection apparatuses, and concretely relates to a mixed filler fluidized tank coupled
constructed wetland sewage advanced treatment apparatus.
Sewage sequentially flows through an anaerobic tank, a fluidized tank, a
sedimentation tank, a primary
wetland, a
phosphorus removal tank and a secondary
wetland; a
flexible fiber rope filler is arrangedin the anaerobic tank, the fluidized tank is provided with a
moving bed and a porous
polymer mixed biological filler and can realize fluidized movement, a gravel and
quartz stone filler is arranged in each of the primary
wetland and the secondary wetland, and wetland plants are planted in each of the primary wetland and the secondary wetland; and an
aeration tube is arranged in the fluidized tank, and is externally connected with an
aeration control device, a return tube is arranged in the
sedimentation tank and is externally connected with a return pump control device, and the control devices realize
automatic control in a
numerical control switch
operation mode. The apparatus overcomes the deficiencies in the prior art, is obtained by innovating the universality of a traditional anaerobic, aerobic and ecologic
sewage treatment technology, has the advantages of novel process, compact structure, high space
utilization rate, small occupied area, enhancement of
nitrogen and
phosphorus removal, and stable
water discharge, and has great promotion and application values.