Microbial ecological regulation method for repairing petroleum polluted saline-alkali soil
A technology for saline-alkali soil and oil pollution, which is applied in the field of environmental biology and can solve the problems of high energy consumption in the heating process.
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Embodiment 1
[0012] The activated sludge and the crushed corn stalks are evenly mixed according to the weight ratio of 1:1, and water is added until the water content is about 70% by weight to complete the batching of the soil micro-ecological regulator.
[0013] Spread the ingredients evenly on the oil-polluted saline-alkali land at 3 tons per mu, and plow deeply. Irrigate evenly with fresh water every 7 days or so, and rainfall of more than 30 mm can also replace 1 irrigation, and deep plow once every 3 weeks or so. Before remediation, the oil content of the contaminated soil was 1370mg / kg, the salt content was 2.6%, and the pH value was 10.5; after 2 months, the oil content in the soil was 71mg / kg, the salt content was 0.44%, and the pH value was 8.0; General plants can be grown.
Embodiment 2
[0015] Mix the activated sludge, cow dung and rice husk evenly according to the weight ratio of 1:0.7:0.5, add water until the water content is about 60% by weight, and complete the batching of the soil microecological regulator.
[0016] Spread the ingredients evenly on the oil-polluted saline-alkali land at 2 tons per mu, and plow deeply. Irrigate evenly with fresh water every 10 days or so, and rainfall of more than 30 mm can also replace 1 irrigation, and deep plow once every 20 days or so. Before remediation, the oil content of the contaminated soil was 2210mg / kg, the salt content was 2.2%, and the pH value was 10.7; after 3 months, the oil content in the soil was 66mg / kg, the salt content was 0.39%, and the pH value was 8.3; General plants can be grown.
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