Remediation apparatus of heavy metal contaminated soil

A technology of polluted soil and heavy metals, applied in the restoration of contaminated soil, etc., can solve the problems of long repair period and low operating cost, and achieve the effect of short repair period, low operating cost and shortened repair cycle

Inactive Publication Date: 2019-07-26
HUNAN CITY UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, the object of the present invention is to provide a repairing device for heavy metal contaminated soil, which adopts the structure of setting a barrier wall in combination with spraying and planting plants to overcome the defects of the long repairing period in the prior art, and can carry out continuous recovery of the contaminated soil. Repair, and low operating cost, high durability, the overall structure is scientific and reasonable, simple and compact, easy to install and use, broad market prospects, easy to promote and use

Method used

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  • Remediation apparatus of heavy metal contaminated soil

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Embodiment Construction

[0021] refer to figure 1 , the present invention is achieved in this way: a repairing device for heavy metal-contaminated soil, which includes an isolation system, a rinsing system and a restoration plant 9, the isolation system includes a barrier wall 1, and the barrier wall 1 encloses an upper and lower connected and surrounded Closed isolation area 3; the shower system includes a spray tank 7 and a number of spray heads 8, the number of shower heads 8 are located above the isolation area 3 and connected to the spray tank 7 through a delivery pipeline.

[0022] refer to figure 1 As shown, the barrier wall 1 in the present invention is a reinforced concrete structural wall with a thickness of 10 to 30 cm, and the use of reinforced concrete can effectively block the leaching and diffusion of heavy metal pollution; the inner side of the barrier wall 1 is provided with an adsorption layer 2, and the The adsorption layer 2 is composed of clay minerals added with sepiolite, which...

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Abstract

The invention provides a remediation apparatus of heavy metal contaminated soil, comprising an isolation system, a leaching system and remediating plants. The isolation system comprises a blocking wall that forms an isolation region having communicated top and bottom and a sealed side; the leaching system comprises a sprinkling tank and a plurality of sprinkling nozzles, and the sprinkling nozzlesare positioned above the isolation region and are connected with the sprinkling tank through a delivery pipeline. The blocking wall is combined with the sprinkling structure and cultivated plants, sothat the defect is overcome that the prior art has long remediation cycle; continuous remediation can be provided for contaminated soil, the operation cost is low, the effect lasts long, the overallstructure is scientific and reasonable and is simple and compact, the remediation apparatus is convenient to install and use, has significant economic and social benefits and is widely applicable to auxiliary use in soil remediation.

Description

technical field [0001] The invention relates to soil remediation equipment, in particular to a remediation device for heavy metal polluted soil. Background technique [0002] Soil heavy metal pollution refers to the excessive deposition of trace metal elements in the soil caused by human activities, collectively referred to as soil heavy metal pollution; because heavy metals cannot be decomposed by soil microorganisms, they are easy to accumulate and transform into more toxic Large methyl compounds, some even accumulate in the human body at harmful concentrations through the food chain, seriously endangering human health. [0003] With the development of society and economy, people's requirements for the environment are getting higher and higher, and relevant laws, regulations and norms on the remediation of heavy metal-contaminated soil have been issued. The market demand for remediation of heavy metal-contaminated soil is increasing. In addition to meeting the restoration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08B09C1/10B09C1/00
CPCB09C1/002B09C1/08B09C1/105B09C2101/00
Inventor 刘玉振
Owner HUNAN CITY UNIV
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