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Constructed wetland filler construction method

A technology of artificial wetland filler and construction method, which is applied in the direction of chemical instruments and methods, special treatment targets, water/sludge/sewage treatment, etc., and can solve the problems of invisible damage to composite anti-seepage layers and pipelines, reduced purification effect of constructed wetlands, water and soil To improve the anti-seepage effect and anti-extrusion ability, reduce the volume and probability, and reduce the loss of fillers

Inactive Publication Date: 2021-05-28
北京京水建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the defect that the composite anti-seepage layer and pipes will be invisible damaged when filling the constructed wetland, which will further cause water and soil loss and reduce the purification effect of the constructed wetland, this application provides a construction method for filling the constructed wetland

Method used

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  • Constructed wetland filler construction method
  • Constructed wetland filler construction method
  • Constructed wetland filler construction method

Examples

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Embodiment 1

[0055] Embodiment 1 of the present application discloses a construction method for artificial wetland filling. When performing horizontal flow artificial wetland filling, the following steps are included:

[0056] S1. Reference figure 1 and figure 2 , first use excavation equipment to excavate and flatten the foundation pit on the construction site, lay retaining walls 1 on both sides of the foundation pit, and lay a composite anti-seepage layer 2 on the excavated foundation pit;

[0057] The composite anti-seepage layer 2 sequentially includes a lower fine soil layer 21, an anti-seepage film 22, an upper fine soil layer 23 and a non-woven fabric layer 24 from bottom to top, and the thickness range of the lower fine soil layer 21 is 50mm-200mm. The thickness in the present embodiment 1 is 100mm, and the anti-seepage membrane 22 is a composite geomembrane, and the thickness range is 0.5mm-2mm, and the thickness in the present embodiment 1 is 1mm, and the thickness range of th...

Embodiment 2

[0079] refer to Figure 7 and Figure 8 , Example 2 of the present application is a vertical flow artificial wetland filler construction method, and the construction steps differ from Example 1 in that:

[0080] S1. Referencefigure 1 , first use excavation equipment to excavate and flatten the foundation pit on the construction site, lay retaining walls 1 on both sides of the foundation pit, and lay a composite anti-seepage layer 2 on the excavated foundation pit;

[0081] S2. Lay the first layer of anti-blocking layer 3 composed of large-grain gravel at the parapet wall 1 near the water inlet pipe;

[0082] S3. Manually excavate the pipe groove 31 on the first anti-blocking layer 3, and place the water distribution horizontal pipe 32 in the pipe groove 31, and set it horizontally. The circumferential side wall of the water distribution horizontal pipe 32 is close to the adjacent protection After the position of the water inlet pipe of wall 1 extends to the parapet wall 1, i...

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Abstract

The invention relates-a constructed wetland filler construction method, and relates-the technical field of constructed wetlands, and the constructed wetland filler construction method comprises the following steps: S1, paving parapet walls on two sides of a foundation pit, and paving composite impermeable layers; S2, laying a first anti-blocking layer on the parapet wall close-the water inlet pipeline; S3, excavating a pipe groove in the anti-blocking layer, and placing a water distribution transverse pipe in the pipe groove and communicating with the water inlet pipeline; S4, enabling a second anti-blocking layer to continues to be laid; S5, laying protection plates on the upper surface of the anti-blocking layer, laying separation layers below the protection plates, performing biological filter layer backfilling, and laying the protection plates sequentially along with equipment advancing; S6, arranging a partition plate at the position, close to the water outlet pipeline, of the biological filter layer; S7, laying a first anti-blocking layer between the biological filter layer and the protective wall, digging out a pipe groove, and enabling a water collecting transverse pipe to penetrate through the protective wall and then communicate with a water outlet pipeline; and S8, laying a second anti-blocking layer, and removing the protection plate and the separation layer. The construction method has the effect of improving the protection effect on the wetland filler, the built-in pipeline and the anti-seepage layer during construction.

Description

technical field [0001] The present application relates to the technical field of constructed wetlands, in particular to a construction method for filling artificial wetlands. Background technique [0002] Constructed wetland is an important ecological project, which is similar to swampland constructed and operated artificially. It can treat sewage and sludge through the physical, chemical and biological synergies of soil, artificial medium, plants and microorganisms. deal with. [0003] In related technologies, the construction of constructed wetlands requires anti-seepage treatment of excavated foundation pits, filling treatment of foundation pits while laying pipelines, water passing through after filling, filtering microorganisms, and planting, and then completing the constructed wetland construction construction. [0004] Regarding the related technologies mentioned above, the inventor believes that there is a defect that when mechanically filling the constructed wetla...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/32C02F3/34C02F2303/20
Inventor 杨栗程大伟卫耀宗姜洪义王占旺
Owner 北京京水建设集团有限公司