Two-phase vacuum suction device with auxiliary chemical leaching and method for repairing soil thereof
A technology of vacuum suction and chemical leaching, applied in the field of in-situ remediation of polluted soil, can solve problems such as low efficiency of dual-phase vacuum suction, and achieve the effect of saving operation and management costs, engineering costs and electricity costs.
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[0022] The present invention will be further described below with reference to the drawings and specific examples.
[0023] A chemical leaching auxiliary two-phase vacuum suction device such as Figure 1-3 As shown, this device is connected to the booster pump 3 by the eluent tank 1 through a connecting pipe. There is a first electromagnetic valve 2 on the pipeline, and an electromagnetic flowmeter 5 and a second electromagnetic valve 6 are installed at the outlet of the booster pump 3. The pressure pump 3 is connected to the rinsing pipeline system 7, and the rinsing pipeline system 7 has micropores 19; the two-phase vacuum suction well 11 is provided with a manhole cover 9, and the manhole cover 9 is provided with a second pressure gauge 20; the two-phase vacuum well has a pipeline 22 Enter the two-phase vacuum suction well 11 through the well cover 9, and the pipe has a small hole 21; the other end of the pipe 22 in the two-phase vacuum well is connected with the vacuum suctio...
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