A method for remediation of heavy metal-contaminated soil with root-diffused capsules

A remediation method, a technology of polluted soil, applied in the restoration of polluted soil, etc., can solve the problems of low soil remediation efficiency and poor pertinence, and achieve the effects of improving remediation efficiency, accelerating adsorption efficiency, and accelerating adsorption speed

Active Publication Date: 2021-11-26
江苏暨之阳环保科技有限公司
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  • Application Information

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Problems solved by technology

[0006] Heavy metal pollution is generally soluble heavy metal pollution, that is, heavy metals exist in the form of ions. For heavy metal pollution in soil, soluble heavy metal ions are generally more concentrated in the water in the soil. In the prior art, soil remediation of heavy metal pollution generally It is uniformly polluted soil buried or sprayed with adsorbents, this method is not very targeted, resulting in low efficiency of soil restoration

Method used

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  • A method for remediation of heavy metal-contaminated soil with root-diffused capsules
  • A method for remediation of heavy metal-contaminated soil with root-diffused capsules
  • A method for remediation of heavy metal-contaminated soil with root-diffused capsules

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Embodiment 1

[0048] see figure 1 , a method for remediation of heavy metal-contaminated soil with the root diffusion capsule, comprising the following steps:

[0049] S1. First, excavate planting pits on the target repaired soil according to the planting method of plants that can absorb heavy metal soil;

[0050] S2. Please refer to figure 2 , a in the figure represents a plant seed, and the self-disintegrating capsule 1 wrapped with the plant seed is buried in the planting pit, and fertilization and watering are carried out according to the growth needs of the plant seed;

[0051] S3. After a period of time, the plant seeds take root and germinate, and produce a pressing force on the self-disintegrating capsule 1 from the inside out, and the root system of the plant seeds penetrates into the gap holes on the surface of the self-disintegrating capsule 1 and extends into the soil;

[0052] S4. Under the force of the root system extending into the soil, the self-disintegrating capsule 1 d...

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Abstract

The invention discloses a root-diffusion capsule-type heavy metal-contaminated soil restoration method, which belongs to the field of heavy metal pollution restoration. A root-diffusion capsule-type heavy metal-contaminated soil restoration method consists of embedding a self-disintegrating capsule wrapped with plant seeds into a In soil polluted by heavy metals, the extension force of the root system into the soil generated by the growth of plant seeds will break the self-disintegrating capsule and form multiple fragments wrapped around the root system, so that the root system can carry the fragments to grow water, thus realizing the goal of targeting Compared with the indiscriminate restoration in the prior art, this method significantly improves the restoration efficiency of heavy metal-contaminated soil. At the same time, it can effectively Accelerate the adsorption speed of the heavy metal adsorbent inside the fragments to the heavy metal ions in the soil, and further improve the restoration efficiency.

Description

technical field [0001] The invention relates to the field of remediation of heavy metal pollution, and more specifically relates to a method for remediation of heavy metal polluted soil in a root-diffused capsule type. Background technique [0002] Heavy metal pollution refers to environmental pollution caused by heavy metals or their compounds. It is mainly caused by human factors such as mining, exhaust gas discharge, sewage irrigation and the use of products with heavy metals exceeding the standard. [0003] Heavy metals originally refer to metals with a specific gravity greater than 5 (metals with a density greater than 4.5 grams per cubic centimeter), including gold, silver, copper, iron, lead, etc. Heavy metal pollution is different from pollution from other organic compounds. Many organic compounds can reduce or eliminate their harmfulness through physical, chemical or biological purification of nature itself. Heavy metals are enriched and difficult to degrade in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 不公告发明人
Owner 江苏暨之阳环保科技有限公司
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