Method for treating polluted soil and device
A technology of contaminated soil and treatment method, applied in the restoration of contaminated soil, etc., can solve the problems of long repair time, impact of repair effect, poor bioavailability, etc., and achieve the effect of reducing repair cost and shortening repair time
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Embodiment 1
[0027] Example 1: In this example, the soil is polluted by the polycyclic aromatic hydrocarbon phenanthrene, the content of phenanthrene is 17 mg / kg, and the removal rate is 81.9% after 15 minutes of treatment according to the above steps. The detailed operating conditions and processing results are as follows:
[0028] 1. Operating conditions:
[0029] Ozone gas flow rate: 0.16 cm / s
[0030] Ozone concentration: 9.4 mg / L
[0031] Soil Moisture: 12%
[0032] Pollutant content: 17 mg (phenanthrene) / kg (dry soil)
[0033] Response time (minutes)
Embodiment 2
[0034] Example 2: In this example, the soil is polluted by polycyclic aromatic hydrocarbon anthracene, the content of anthracene is 100 mg / kg, and the removal rate is 80.4% after 40 minutes of treatment according to the above steps. The detailed operating conditions and processing results are as follows:
[0035] 1. Operating conditions:
[0036] Ozone gas flow rate: 0.40 cm / s
[0037] Ozone concentration: 3.4 mg / L
[0038] Soil moisture: 10%
[0039] Pollutant content: 100 mg (anthracene) / kg (dry soil)
[0040] Response time (minutes)
Embodiment 3
[0041] Embodiment 3: In this embodiment, the soil is polluted by 2-chlorophenol, and the content of 2-chlorophenol is 1000 mg / L. According to the above steps, the removal rate is 92.2% after 40 minutes of treatment. The detailed operating conditions and processing results are as follows:
[0042] 1. Operating conditions:
[0043] Ozone gas flow rate: 0.32 cm / s
[0044] Ozone concentration: 7.6 mg / L
[0045] Soil moisture: 10%
[0046] Pollutant content: 1000 mg (2-chlorophenol) / liter (soil moisture)
[0047] Response time (minutes)
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