Polluted site underground water processing-soil ex-situ leaching restoration integral method
A groundwater and soil technology, applied in the field of polluted site remediation, can solve the problems of secondary pollution, activated carbon is not easy to regenerate or reuse, and the saturated adsorption capacity is small, so as to save costs and realize the effect of waste reuse.
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[0023] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] In this embodiment, the groundwater treatment-soil ectopic leaching and restoration integrated method of the polluted site, the steps are as follows:
[0025] (1) The extracted groundwater enters the organic bentonite filled column, and the removal rate of organic pollutants is more than 90%;
[0026] (2) The purified groundwater is discharged into the storage tank for subsequent soil washing (replenishment of insufficient water with tap water);
[0027] These two steps are the groundwater treatment process (in the dotted line box in the accompanying drawing 1).
[0028] (3) Add the water and surfactant from the water storage tank into the dosing tank to make a 0.1% to 2% eluent;
[0029] (4) Contaminated soil is initially sieved by a multi-stage wet vibrating sieve. Stones (>5mm) are removed by the first-stage sieve and collected; coarse sand...
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