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Method for clearing and purifying soil polluted by high polymer organic matters

A technology of high molecular organic matter and polluted soil, applied in the restoration of polluted soil, etc., can solve the problems of long cycle and achieve the effect of short cycle, effective resource utilization and simple process

Inactive Publication Date: 2012-03-28
深圳市兖能环保科技有限公司
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Problems solved by technology

long cycle

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  • Method for clearing and purifying soil polluted by high polymer organic matters
  • Method for clearing and purifying soil polluted by high polymer organic matters

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Embodiment Construction

[0036]A method for decontaminating and purifying soil polluted by high-molecular organic matter, the method is realized by heating the polluted soil with microwaves, and the specific implementation steps are as follows:

[0037] ⑴. The contaminated soil that needs to be purified and digested will form a partially enclosed space on the ground according to the design area of ​​one treatment. The ground forms a partially enclosed space, which is convenient for local microwave radiation, heat preservation and recycling of pollutants in the soil.

[0038] (2) Utilize the microwave generator to irradiate the polluted soil with microwaves in the partially enclosed space formed in step (1), so that among the high molecular organic pollutants in the polluted soil, the solvent-like organic pollutants with low melting point and volatile components will undergo molecular heat The temperature rises sharply due to the movement and overflows the soil in the form of steam.

[0039] (3) Colle...

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Abstract

A method for clearing and purifying soil polluted by high polymer organic matters solves the technical problem of removing high polymer organic matters in soil. The method comprises the following steps: (1), a partially closed treatment space is formed on the ground; (2), a microwave generator is used for implementing microwave radiation to polluted soil, the high polymer organic matters overflow from soil in a steam form; (3), solvent for the high polymer organic matters overflowed in the steam form is collected and cooled so as to obtain recovered solvent; (4), microwave radiation for enhancing microwave intensity is implemented continuously so as to enable organic pollutants with high melting points to generate gaseous objects and residues, and the generated gaseous objects overflow from the soil; and (5), the gaseous objects are collected, and discharged after activated charcoal adsorption treatment. The invention has the benefits as follows: thorough and harmless treatment is performed, effective resource utilization is achieved, the process is simple, the operation is convenient and simple, and the period is short.

Description

technical field [0001] The invention relates to a method for treating soil polluted by organic matter, in particular to a method for purifying and dissolving the soil by using microwave radiation to make high-molecular organic matter overflow the soil in the form of steam and gaseous state. Background technique [0002] At present, the existing soil purification and digestion processes and their characteristics at home and abroad: For land pollutants from chemical plants, there are many mature restoration technologies abroad, which are mainly divided into three categories, physical and chemical methods, biological methods and combined restoration methods. [0003] 1.1. Physical and chemical method. [0004] (1) Steam leaching repair technology: Steam leaching technology refers to the technology of removing pollutants in the soil by reducing the vapor pressure of the soil voids and converting them into vapor forms. A remediation technique for component (vocs) contamination....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
Inventor 杨启才王照壹
Owner 深圳市兖能环保科技有限公司
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