Efficient chemical oxidation repairing method for organic polluted soil
A technology of organic pollution and chemical oxidation, applied in the restoration of polluted soil, etc., can solve the problems of affecting the chroma of the effluent, difficult to handle, and large chemical sludge production, and achieves the benefits of removal, promotion of dissolution, and human and environmental safety Effect
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[0045] Example 1
[0046] Select the soil with heavy organic pollution in the site, the content of BHC is 48.3mg / kg, and the content of benzo(a)pyrene is 4.7mg / kg. Accurately weigh 10g of organically contaminated soil, and add 30ml of water to the soil to make a muddy soil mixture. Add 0.1g of GLDA and 0.4g of Tween80 to the muddy soil mixture in sequence, stir well, and then add 0.6g of SPC. The reaction system was placed in a benchtop constant temperature culture shaker at room temperature (25°C) and oscillated for 24 hours, and oscillated at a rotation speed of 180r / min. After the reaction, the organic pollutants in the soil are quantitatively detected. The results showed that the degradation rate of BHC in the soil reached 90%, and the degradation rate of benzo(a)pyrene reached 85%.
Example Embodiment
[0047] Example 2
[0048] Select the heavily polluted soil of BHC in the site, the content of BHC is 45.0mg / kg, and the content of benzo(a)pyrene is 4.6mg / kg. Accurately weigh 10g of organic contaminated soil, and add 10ml of water to the soil to make a muddy soil mixture. Add 0.09g of GLDA and 0.38g of Tween80 to the muddy soil mixture in sequence, stir well, and then add 0.55g of SPC. The reaction system was placed in a benchtop constant-temperature culture oscillator and oscillated at room temperature for 18 hours, and oscillated at a speed of 190 r / min. After the reaction, the organic pollutants in the soil are quantitatively detected. The results showed that the degradation rate of BHC in the soil reached 84%, and the degradation rate of benzo(a)pyrene reached 81%.
Example Embodiment
[0049] Example 3
[0050] Select the heavily polluted soil of BHC in the site, the BHC content is 42.6mg / kg, and the benzo(a)pyrene content is 4.9mg / kg. Accurately weigh 10g of organically contaminated soil, add 25ml of water to the soil to make a muddy soil mixture. Add 0.075g of GLDA and 0.28g of Tween80 to the muddy soil mixture in sequence, and after stirring evenly, add 0.48g of SPC. The reaction system was placed in a benchtop constant temperature culture shaker and oscillated at room temperature for 18 hours, and oscillated at a rotation speed of 130 r / min. After the reaction, the organic pollutants in the soil are quantitatively detected. The results showed that the degradation rate of BHC in the soil reached 81%, and the degradation rate of benzo(a)pyrene reached 78%.
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