Method for restoring crude oil-polluted soil by using sludge generated in yeast production
A technology of polluted soil and sludge, applied in the field of environmental restoration, can solve the problems of difficult separation of oil and soil, achieve the effect of increasing soil permeability, improving micro-ecological environment, and promoting synergistic degradation
Inactive Publication Date: 2012-12-26
CHINA PETROLEUM & CHEM CORP +1
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The invention discloses a method for restoring crude oil-polluted soil by using sludge generated in yeast production, comprising the following steps of: detecting the crude oil-polluted soil, detecting the sludge generated in yeast production, and storing the crude oil-polluted soil by using the sludge generated in yeast production, wherein the sludge which is generated in yeast production and contains 40-48% of organic material, 3.12-3.6% of nitrogen, 0.28-0.56% of phosphorus and 5.38-6.1% of potassium by mass and has the water removal rate of 95-100% is directly used for the restoration of the crude oil-polluted soil, and the ratio of the crude oil-polluted soil to the sludge generated in yeast production and blended in the crude oil-polluted soil is 100:(10-15) so that oil in the blended soil has the weight of 30mg/Kg and the pH value of 6.8-8.0; and maintaining and growing acid-resisting plants or alkali-resisting plants in the soil to form farming lands.
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Classification and recommendation of technical efficacy words
- Reduce soil viscosity
- Improve soil properties