Remediation method for soil contaminated by organic matter
A technology of polluted soil and remediation method, applied in the restoration of polluted soil and other directions, can solve the problem of low energy utilization rate, and achieve the effect of reducing soil remediation costs, reducing investment, and high energy utilization rate
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[0018] see figure 1 , the remediation method of organic matter polluted soil of the present invention, comprises the steps:
[0019] A. The heavily polluted soil 1 enters the preheating device 2 and is indirectly heated by the hot tail gas 31 from the thermal desorption device 3 for preheating. The separated organic matter is swept out of the preheating device 2 by the purge air 9, and the hot tail gas 31 after heat exchange enters the tail gas treatment device 7 for treatment.
[0020] The hot tail gas 31 after heat exchange enters the tail gas treatment device 7 for treatment, mainly cooling and dust removal, and then absorbs and purifies the hot tail gas 31 after heat exchange with an organic amine solution. The organic amine used is preferably one of monoethanolamine, diethanolamine, methyldiethanolamine and piperazine, or a mixed amine of two or more. The hot tail gas 31 is discharged into the atmosphere after being purified up to the standard.
[0021] The above-menti...
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