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Classified thermal desorption repair system and technology of organic contaminated soil

A technology of organic pollution and remediation system, applied in the field of contaminated soil remediation, can solve the problems of low heat energy utilization efficiency, high operating cost, high energy consumption of treatment, etc., achieve efficient remediation, low operating cost, and avoid over-treatment effects

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a thermal desorption repair system and process for organic polluted soil classification, to solve the problem of low utilization efficiency of heat energy in the thermal desorption repair of polluted soil existing in the existing thermal desorption repair technology of polluted soil, Solve the technical problems of high energy consumption and high operating costs

Method used

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  • Classified thermal desorption repair system and technology of organic contaminated soil
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  • Classified thermal desorption repair system and technology of organic contaminated soil

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Embodiment

[0038] see figure 1 As shown, the embodiment of the present invention provides a thermal desorption remediation system for organic polluted soil, including a preheater system, a high temperature thermal desorption kiln system, a low temperature thermal desorber system and a soil discharge system; a preheater system, The high-temperature thermal desorption kiln system, the low-temperature thermal desorber system and the soil discharge system are connected in sequence. In this embodiment, a pre-heater system is set up to make full use of the high-temperature tail gas produced by the high-temperature pyrolysis kiln system, which improves the utilization rate of heat energy; the high-temperature thermal desorption kiln system and the low-temperature thermal desorber system are used to treat organically polluted soils with different pollution degrees respectively. , which greatly reduces the energy consumption of thermal desorption treatment, and the operating cost is low.

[0039...

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Abstract

The invention relates to the technical field of contaminated soil remediation, particularly to a classified thermal desorption repair system and technology of organic contaminated soil. The classified thermal desorption repair system of organic contaminated soil comprises a preheater system, a high-temperature thermal desorption kiln system, a low-temperature thermal desorption device system and a soil discharging system, wherein the preheater system, the high-temperature thermal desorption kiln system, the low-temperature thermal desorption device system and the soil discharging system are communicated in sequence. According to the classified thermal desorption repair system and technology of organic contaminated soil, the high-temperature tail gas generated by the high-temperature thermal desorption kiln system is fully used through arranging the preheater system, so that the use ratio of thermal energy is improved; organic contaminated soil with different degrees of contamination is treated through the high-temperature thermal desorption kiln system and the low-temperature thermal desorption device system, so that the energy consumption of thermal desorption treatment is greatly decreased, and the operation cost is low.

Description

technical field [0001] The invention relates to the technical field of contaminated soil remediation, in particular to a classification thermal desorption remediation system and process for organic polluted soil. Background technique [0002] Developed countries such as Europe and the United States have conducted years of research on efficient remediation technologies for contaminated soil. In recent years, domestic scholars have also conducted some technical development and application research. For soil remediation technologies polluted by volatile organic pollutants, there are mainly thermal desorption, redox, microbial Remediation, gas phase extraction and other technologies, among which the thermal desorption technology has a good effect on the remediation of petroleum volatile organic compound-contaminated soil caused by oil refining and chemical industry. Compared with other technologies, it has fast repair speed, strong operability, and It has the advantages of adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
Inventor 何庆生李怿许兰生王龙延孙明波张永明刘献玲
Owner CHINA PETROLEUM & CHEM CORP
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