System and method for repairing organic material polluted soil

A technology of polluted soil and remediation system, applied in the restoration of polluted soil and other directions, can solve problems such as soil residues, and achieve the effects of short time, improved remediation efficiency, and self-sufficiency of energy.

Active Publication Date: 2013-04-03
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, my country has produced and widely used POPs pesticides such as DDT, hexachlorobenzene, chlordane, and mirex. Although these pesticides have been banned for many years, there are still residues in the soil.

Method used

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  • System and method for repairing organic material polluted soil
  • System and method for repairing organic material polluted soil

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0026] Such as figure 1 As shown, a system for remediation of organic-contaminated soil includes a chimney 18 and a rotary kiln reactor 21. The exhaust outlet of the rotary kiln reactor 21 is connected to the furnace chamber 11, and the furnace chamber 11 is connected to the cyclone separator 12, and the cyclone separates One end of the device 12 is connected to the preheating passage 15, and the other end is connected to the feeder 14, and the returner 14 is connected to the furnace chamber 11. The preheating passage 15 passes through the flue gas desulfurization and denitrification purifier 16, the bag filter 17 and the chimney 18 in sequence. connection, an air preheater 13 is arranged in the preheating passage 15, one end of the air preheater 13 is connected with the first fan 19, and the other end is respectively connected with the rotary kiln reactor 21 and the ...

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Abstract

The invention discloses a system for repairing organic material polluted soil, which comprises a chimney and a rotary kiln reactor, wherein the smoke exhaust port of the rotary kiln reactor is connected with a furnace chamber; the furnace chamber is connected with a cyclone separator; one end of the cyclone separator is connected with a preheating passage; the other end of the cyclone separator is connected with a refeeder; the refeeder is connected with the furnace chamber; the preheating passage is connected with the chimney after passing through a flue gas desulfurization denitration purifier and a bag-type dust remover; an air preheating device is arranged in the preheating passage; one end of the air preheating device is connected with a first blower; the other end of the air preheating device is connected with the rotary kiln reactor and the furnace chamber respectively; and a rotary kiln repaired soil outlet is arranged on the rotary kiln reactor. The invention further discloses a method for repairing organic material polluted soil. According to the invention, the advantages of the thermal desorption technology in the organic material polluted soil repairing process are fully played; and organic material polluted soil, which is difficult to repair, can be repaired fast through the combination of new rotary kiln thermal desorption technology and the circulatory fluidized bed incineration technology.

Description

technical field [0001] The invention relates to the technical field of soil organic matter pollution treatment, and more specifically relates to a system for remediating organic-contaminated soil, and also relates to a method for remediating soil polluted by organic pollutants, which is applicable to the remediation of soil polluted by organic matter. Background technique [0002] Soil is an important part of the human ecological environment, and it has a relatively strong sensitivity to the environment. The deterioration of the soil environment is caused by various reasons, such as the extensive use of chemical fertilizers in agriculture, the widespread use of chemical pesticides, the wanton discharge of industrial wastewater, the discharge of toxic and harmful pollutants, and the random discharge of solid waste, especially toxic and harmful solid waste. Leakage of toxic substances caused by landfill, etc. Contaminated soil will cause secondary pollution to surface wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
Inventor 谭中欣王秋敏
Owner HUAZHONG AGRI UNIV
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