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Underground water artificial recharge suspended matter blocking treatment method based on air flow circulation

A technology for blockage of suspended solids and air circulation, applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as high cost and poor effect, and achieve the effect of low cost, less time-consuming, and good governance effect.

Inactive Publication Date: 2014-01-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a groundwater artificial recharge suspended matter clogging treatment method based on air circulation to solve the problem of high cost or poor effect in the existing groundwater artificial recharge suspended matter clogging treatment method

Method used

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  • Underground water artificial recharge suspended matter blocking treatment method based on air flow circulation
  • Underground water artificial recharge suspended matter blocking treatment method based on air flow circulation
  • Underground water artificial recharge suspended matter blocking treatment method based on air flow circulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Establishment of groundwater artificial recharge suspension blockage control device based on air circulation

[0018] Build the main body 4 of the recharge tank, its depth is 1.5m, artificially lay the filling filter material 3 in the main body 4 of the recharge tank, the particle size is 0.35mm, build the discharge area 1 on the side of the main body of the recharge tank, its depth is 1m, An air pump is installed in the surface pumping station 6. The water inlet device 7 and the gas injection pipeline 5 are made of hard thick-walled PVC pipes with a nominal outer diameter of 100 mm. The water inlet device is used to spray water with pressure. The PVC pipe of the gas injection pipeline is closed at one end , on one side of the upper surface of the gas injection pipe 5, a circular vent unit 8 is drilled in a direction parallel to the diameter of the gas injection pipe, each unit has 3 vent holes, the diameter of the vent holes is 10mm, and the hole spacing is 20mm, no...

Embodiment 2

[0022] (1) Establishment of groundwater artificial recharge suspension blockage control device based on air circulation

[0023] Build the main body 4 of the recharge tank with a depth of 1.6m, artificially lay the filling filter material 3 in the main body 4 of the recharge tank, with a particle size of 0.40mm, and build a discharge area 1 on the side of the main body of the recharge tank with a depth of 1.2m , an air pump is set in the ground pumping station 6, the water inlet device 7 and the gas injection pipeline 5 are made of hard thick-walled PVC pipes with a nominal outer diameter of 100mm, the water inlet device is used to spray water with pressure, and one end of the gas injection pipeline PVC pipe Closed, on the side of the upper surface of the gas injection pipeline 5, a circular vent unit 8 is drilled in a direction parallel to the diameter of the gas injection pipe, each unit has 3 vent holes, the vent hole diameter is 10mm, and the hole spacing is 20mm, The anti...

Embodiment 3

[0027] (1) Establishment of groundwater artificial recharge suspension blockage control device based on air circulation

[0028] Build the main body 4 of the recharge tank with a depth of 1.8m. Artificially lay the filling filter material 3 in the main body 4 of the recharge tank with a particle size of 0.5mm. Build a discharge area 1 on the side of the main body of the recharge tank with a depth of 1.3m , an air pump is set in the ground pumping station 6, the water inlet device 7 and the gas injection pipeline 5 are made of hard thick-walled PVC pipes with a nominal outer diameter of 100mm, the water inlet device is used to spray water with pressure, and one end of the gas injection pipeline PVC pipe Closed, on the side of the upper surface of the gas injection pipeline 5, a circular vent unit 8 is drilled in a direction parallel to the diameter of the gas injection pipe, each unit has 3 vent holes, the vent hole diameter is 10mm, and the hole spacing is 20mm, The anti-clogg...

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Abstract

The invention relates to an underground water artificial recharge suspended matter blocking treatment method based on air flow circulation and belongs to the technical field of underground water artificial recharge. A gas injection pipeline is preset at the position of certain depth of an infiltration medium, gas is injected into the lower portion of the medium through a gas pump, a surface blocking layer of the infiltration medium is damaged under the power effect generated by upward movement of the gas, and suspended particles reserved in the medium are brought to the outside of the medium. The suspended particles and the infiltration medium are completely separated under a water flow scouring effect. The method has the advantage that the surface blocking layer of the medium can be cleared, and a certain amount of suspended particles in the medium can also be cleared when underground water artificial recharge suspended matter blocking treatment is conducted, and a good treatment effect is achieved. The method is high in automation degree, low in cost and less in time consumption.

Description

technical field [0001] The invention belongs to the technical field of groundwater artificial recharge, in particular, it belongs to a kind of dynamic action through air circulation to destroy the plugging layer on the surface of the medium and carry the suspended particles trapped in the medium to the outside of the medium, and at the same time, it is supplemented by water flow on the surface of the medium. Flushing is a blockage control method that takes suspended particles away from the infiltration tank and enters the discharge area, thereby improving the permeability of the recharge tank medium. Background technique [0002] At present, the widely used control methods for groundwater artificial recharge suspended matter clogging include: natural dry cracking, replacement of infiltration medium, mechanical scraping, plowing, etc. Among them, the natural dry cracking method takes a long time, which reduces the efficiency of the recharge tank, and cannot fundamentally solv...

Claims

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Application Information

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IPC IPC(8): E02D3/10
Inventor 杜新强郝洋李威董奡飞赵斌
Owner JILIN UNIV
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