Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage

A constructed wetland and vertical flow technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low treatment cost and small footprint, and reduce treatment costs , the effect of increasing the removal capacity

Active Publication Date: 2006-12-27
SOUTH CHINA AGRI UNIV
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the existing urban sewage composite constructed wetland treatment method, and provide a composite constructed wetland with low treatment cost, small footprint and good phosphorus and nitrogen removal effect for urban sewage treatment by integrating vertical flow and horizontal flow method

Method used

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  • Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage
  • Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage
  • Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage

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Embodiment Construction

[0027] The sedimentation tank, vertical flow constructed wetland, horizontal flow constructed wetland and other unit structures in the composite constructed wetland integrating vertical flow and horizontal flow of urban sewage are connected by pipes.

[0028] The vertical flow artificial wetland is composed of a bed body and a water distribution pipe. The bed wall of the bed body is made of non-seepage material, the bed wall is a brick structure with cement plaster, and the bottom is a concrete structure. The bed body is a mixed matrix layer with a thickness of 85 cm, filled with a mixed matrix of blast furnace slag and peat. The water distribution pipes are distributed at 5-10cm below the surface of the mixed matrix layer. The bottom of the vertical fluidized bed is the surface layer of the horizontal fluidized bed. The filled matrix is ​​a cinder matrix, and deep-rooted plant windmills that are conducive to nitrification are planted in the vertical fluidized bed. Grass.

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Abstract

The invention discloses an urban effluent disposing method through composite artificial wetland of integrated vertical flow and horizontal flow, which comprises the following steps: disposing effluent through vertical artificial wetland and horizontal artificial wetland then to fill blast-furnace/turf composite substrate and gravel/coal cinder compound substrate separately; dividing horizontal flow artificial wetland into front and back wetlands with interconnecting hole between two wetlands; building vertical flow artificial wetland on the former horizontal flow artificial wetland; making effluent dispose through vertical flow artificial wetland, former horizontal flow artificial wetland and the other horizontal flow artificial wetland from interconnecting hole.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for treating urban sewage in a composite artificial wetland integrating vertical flow and horizontal flow. Background technique [0002] The combined constructed wetland treatment methods of urban sewage mainly include vertical flow and horizontal flow, horizontal flow and vertical flow, vertical flow and surface flow, and vertical flow and vertical flow combination. [0003] Composite constructed wetland system of horizontal flow and vertical flow: connected in series according to the way of horizontal flow in front and vertical flow in the back. Sand, etc. are used as the infiltration medium. After the sewage is first treated by the horizontal fluidized bed, it flows into the surface of the vertical fluidized bed to distribute water evenly. It is treated in the process of vertical infiltration, and then the nitrification treatment effluent of the vertical fluidized bed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/30
CPCY02W10/10
Inventor 崔理华
Owner SOUTH CHINA AGRI UNIV
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