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Multi-layer column leaching device for soil pollutant leaching

A pollutant, multi-layer column technology, applied in the field of soil remediation, can solve the problem of easy stasis of the extract, and achieve the effects of improving the extraction efficiency, improving the utilization rate, and reducing the difference of extraction.

Pending Publication Date: 2019-01-08
SICHUAN XIYE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem that the leaching solution is easy to stagnate during column leaching, and provide a multi-layer column leaching device for soil pollutant leaching

Method used

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  • Multi-layer column leaching device for soil pollutant leaching
  • Multi-layer column leaching device for soil pollutant leaching
  • Multi-layer column leaching device for soil pollutant leaching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A multi-layer column leaching device for leaching of soil pollutants, comprising a liquid distribution unit 1 for distributing the leaching solution, a leaching unit 2 for extracting pollutants, and a collection unit 3 for collecting the leaching solution , the liquid distribution unit 1, the extraction unit 2 and the collection unit 3 are sequentially detachably connected, and the extraction liquid flows through the liquid distribution unit 1, the extraction unit 2 and the collection unit in sequence 3. When in use, the column leaching device is placed horizontally, the collection unit 3 is located at the bottom, the extraction unit 2 is located at the top of the collection unit 3, the liquid distribution unit 1 is located at the top of the extraction unit 2, and the extraction liquid flows into the liquid distribution unit through the tube peristaltic pump In 1, it flows through the leaching unit 2 in sequence, and is finally enriched in the collecting unit.

[0036]...

Embodiment 2

[0045] On the basis of Embodiment 1, in this embodiment, a card slot 5 is provided on the top of the collection tube 31, as shown in the attached Figure 2-5 As shown, correspondingly, a slot 5 is also provided on the top of the extraction tube 22. When assembling, the collection tube 31 is placed on a horizontal plane, and the bottom of the extraction tube 22 is placed in the slot 5 on the top of the collection tube 31. Inside, the clamping groove 5 limits the position of the extraction cylinder 22 in the horizontal direction, and supports the extraction cylinder 22 at the same time, so that the extraction cylinder 22 is stuck in the clamping groove, but the extraction cylinder 22 can be lifted upwards under the action of external force. ; Similarly, place the bottom of the liquid distribution cylinder 13 in the slot 5 on the top of the extraction cylinder 22 . Through the way of the card slot 5, each unit can be detachably connected, which is convenient for assembly, simple ...

Embodiment 3

[0047] On the basis of Embodiment 1, a cover body 6 is provided on the top of the liquid distribution cylinder 13, and the cover body 6 is threadedly connected with the liquid distribution cylinder 13, and the cover body can seal the liquid distribution cylinder 13 to prevent volatile extracts from To pollute the air, impurities can also be prevented from entering the liquid distribution cylinder 13 .

[0048] In other embodiments of the present invention, a card slot 5 may also be provided on the top of the liquid distribution cylinder, and the bottom plate of the cover 6 is placed in the card slot 5, and the cover 6 and the card slot 5 are detachably connected.

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Abstract

The invention discloses a multi-layer column leaching device for soil pollutant leaching. The multi-layer column leaching device for soil pollutant leaching comprises a liquid distributing unit, leaching units and a collecting unit, wherein the liquid distributing unit is used for distributing leaching liquid; each leaching unit is used for extracting pollutants; the collecting unit is used for collecting leaching liquid; the liquid distributing unit, the leaching unit and the collecting unit are connected sequentially and detachably; the leaching liquid sequentially flows through the liquid distributing unit, the leaching unit and the collecting unit. The plurality of leaching units are connected in series and assembled, so that the utilization rate of the leaching liquid is increased, the pollutant concentration of each unit of leaching liquid is greatly increased and the subsequent processes of enriching and separating the pollutants are reduced.

Description

technical field [0001] The invention belongs to the technical field of soil restoration, and in particular relates to a column immersion device. Background technique [0002] Soil leaching remediation technology includes in-situ leaching remediation technology and ex-situ leaching remediation technology. In-situ soil washing remediation technology is suitable for in-situ remediation of sandy contaminated soil with many pores and easy permeability. The existing ectopic soil leaching restoration technology adopts the principle of ore mining. After excavating and transporting the polluted soil from the polluted site to the designated place, the leaching agent is added into a specific container to stir and mix with the polluted soil. A series of physical and chemical reactions transfer the pollutants in the soil to the liquid phase, thereby separating the process of cleaning the soil. [0003] Heap leaching technology has the advantages of less investment, large processing cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 王吉周正郑若锋雷力
Owner SICHUAN XIYE NEW MATERIAL
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