Domestic sewage aeration type wetland filter tank

Abstract

The invention discloses a domestic sewage aeration type wetland filter tank which comprises a constructed wetland filter tank. A constructed wetland layer is arranged on the water body surface of the constructed wetland filter tank in a suspended mode, and the constructed wetland layer is formed by sequentially splicing a plurality of unit planting frames. The domestic sewage aeration type wetland filter tank has the beneficial effects that the multiple strip-shaped unit planting frames are sequentially arranged, then connecting strips arranged at the ends of the unit planting frames are pulled so that the connecting strips are promoted to compress springs on the surfaces of T-shaped columns, traction of the connecting strips is abandoned to promote the springs to push the connecting strips in the reset stretching process, the connecting strips are connected with the positioning columns of the adjacent unit planting frames in an inserted mode in the process that the connecting strips are attached to the end faces of the unit planting frames, and rapid splicing of the multiple strip-shaped unit planting frames is achieved; and planting lattices arranged on the surfaces of the unit planting frames, purification vegetation in the planting lattices and filter layers (a gravel layer, a gravel soil layer and microbial films generated by all the layers) required for planting the purification vegetation are matched, so that rapid splicing type installation of the constructed wetland layer is facilitated.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an aeration type wetland filter for domestic sewage. Background technique [0002] With the rapid development of China's rural areas to urbanization, the discharge of rural domestic sewage is also increasing day by day. Domestic sewage with high COD and high N content is discharged in large quantities, causing water pollution problems to become more prominent. At present, rural domestic sewage treatment is usually The treatment of domestic water is carried out by means of artificial wetland + filter + aeration. [0003] When the existing aerated wetland filter for domestic sewage treatment is put into use, since the artificial wetland itself and the filter materials in the filter are often fixed, there are problems that the installation process takes a long time and it is inconvenient to purify vegetation. Maintenance (for example: purification of vegetation removal and ...

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Problems solved by technology

[0003] When the existing aerated wetland filter for domestic sewage treatment is put into use, since the artificial wetland itself and the filter materials in the filter are often fixed, there are problems that the installation process takes a long time and it is inconvenient to purify vegetation. Maintenance (for example: purification of vegetation removal and harvesting), and it is inconvenient to disassemble and replace the filter material in the filter in the later stage. At the same time, during the water purification process of the aerated wetland filter, the water surface of the aerated wetland filter There is a large amount of impurities suspended on the surface, which is inconvenient to clean up

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