CN102430567B - Crude oil degrading agent in soil polluted by crude oil - Google Patents
Crude oil degrading agent in soil polluted by crude oil Download PDFInfo
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- CN102430567B CN102430567B CN201110343630.5A CN201110343630A CN102430567B CN 102430567 B CN102430567 B CN 102430567B CN 201110343630 A CN201110343630 A CN 201110343630A CN 102430567 B CN102430567 B CN 102430567B
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Abstract
The invention discloses a crude oil degrading agent in soil polluted by crude oil, which is applied to petroleum degradation of the crude oil in the polluted soil. The crude oil degrading agent is characterized by comprising the following components in percentage by weight: 85 to 90 percent of CDKT-004 organic compound fertilizer, 0.5 to 0.65 percent of ammonium nitrate, 1.25 to 1.5 percent of potassium nitrate, 0.045 to 0.055 percent of vitamin C and the balance of ammonium dihydrogen phosphate. The crude oil degrading agent has the effects of degrading the crude oil in the polluted soil from 100g/kg to 15g/kg approximately. Crops and flowers can be planted in the treated soil; and environmental pollution is reduced.
Description
Technical field
The present invention relates to petroleum industry field of environment protection, relate in particular to a kind of medicament biodegrading process of the polluted soil Crude Oil of degrading.
Background technology
At present, in crude oil production process, due to equipment failure, natural calamity, sabotage and artificial mistake, all there is oil contaminated soil event in the whole world.Yet traditional method for cleaning needs extra Environmental costs.For example: itself has become pollutant cleaning agent, and may being still present in environment for a long time after repair completes.
I am published in processing one literary composition of the Crude Oil-Contaminated Soil With Hot Alkaline Solution Cleaning-Floatation Separation Method on the 3rd phase oil gas field environmental protection magazine in 1994 for recovery and the soil pollution governing problem of ground crude oil Lv Ronghu etc.; propose the processing method with thermokalite aqueous cleaning-dissolved air flotation, obtained more satisfactory result.In experiment, investigate the various influence factors such as reaction temperature, scavenging period, liquid-solid ratio, alkali concn and the air supporting temperature of cleaning process and air supporting time, obtained suitable treatment process condition.Herein under reason condition, can make to reach 92.5～93.5% containing the oil removing rate of the simulation oil-containing soil of viscous crude 12.5%, in soil, residual content is down to 0.9%～1.0%.The processing method proposing, the former consumption of energy is lower, and alkaline agent expense is only 7 yuan of left and right of oil-containing soil per ton, and can reclaim wash-out crude oil out.
The people such as Li Peijun are published in dissimilar oil contaminated soil bioremediation technology on the 1st phase Chinese Journal of Applied Ecology in 2002 and study a literary composition and on the prefabricated bed of practical scale, adopt composting technology to carry out biological restoration to dissimilar oil contaminated soil.By adding fertilizer, microbial inoculum, control moisture and pH, can make microorganism obtain good ecological environment.When thin oil, high solidifying oil, special viscous crude and condensed oil polluted soil Crude Oil total amount are 25.8～77.2gkg-1 soil, through the operation of nearly 2 months, the clearance of oil total amount can reach 38.37～56.74%.In oil, aromatic hydrocarbons, pitch and colloidal mixt are the principal elements of restriction oil fast degradation.In processing procedure, filter out the dominant strain of oil degradation, wherein have 6 fungal strains, 6 strain bacteriums and 1 strain actinomyces.Result of study is the practical theoretical foundation that provides of oil-polluted soils heterotopic biological recovery technique.
Yu Xiaoli is published in ground crude oil that ground crude oil on the 3rd phase agricultural environments in 2000 and development magazine produces for oil play in process of production to soil pollution and improvement technology one literary composition to this phenomenon of soil pollution, has analyzed the pluses and minuses, the scope of application, service condition, operating procedure of microbial method, Physical and three kinds of improvement technology of chemical method etc.Microbial treatment technology comprises biological mud method, " on the spot " facture, excavates stacking method and reactor for treatment method; Chemical method comprises soil washing method and extraction.
Hu Wenwen is published in microbial immobilized recovery technique one literary composition research domestication from oil contaminated soil of the Huanghe delta oil contaminated soil on the 3rd phase Environmental science and technology magazine in 2011 and isolates highly effective petroleum alkane degradation fungus strain, with sodium alginate and the compound carrier of diatomite, be prepared into immobilized bacterium, compared the variation to the degradation rate of soil Crude Oil and they active and quantity in soil of immobilization degradation bacteria and free bacterium.Result shows, original inhabitants' degradation bacteria has shown higher tolerance and adaptive capacity to environment after domestication, immobilization degradation bacteria has produced the obvious high degraded advantage of free bacterium of more equal bacterium amount, particularly in experiment initial stage (20 days time), low (IL), in (IM), high (IH) three immobilized bacteriums inoculations process and exceed respectively 12.4%, 10.1% and 6.4% than the free bacterium of equal inoculum concentration, and the immobilized bacterium of low inoculum concentration has showed the degraded advantage stronger than the free bacterium of high inoculum concentration; After 30 days, quantity and the microbial activity of each experimental group degradation bacteria tend towards stability, and corresponding oil degradation rate is also tending towards slow.In addition, used carrier all can spoiled soil structure, is applicable to the field repair of long-term large area oil-polluted soils.
Although these technology can solve the cleaning problems solving to some extent by the soil of crude oil pollution, processing method itself is contaminated soil to some extent just.
Summary of the invention
The object of the invention is: a kind of oil degradation agent and using method thereof being subject in oil contaminated soil is provided, processing is by the soil of crude oil pollution, be placed in contaminated soil by the oil degradation agent in oil contaminated soil, the pH value of soil is brought up to 6.3～7.4 scope.In soil, nearly 75% crude oil is decomposed; Contaminated soil reaches the condition of kind of flower.
The technical solution used in the present invention is:
One, comprised by the raw material of the oil degradation agent in oil contaminated soil:
1, CDKT-004 compoiste fertilizer (industrial goods); CDKT series (001-008) compoiste fertilizer, has 8 kinds of composite fertilizers, selects CDKT-004 compoiste fertilizer wherein.
Character: this organic composite fertilizer, total nutrient content is greater than 15%, and organic matter is greater than 20%, and moisture is less than 10%.Adopt organic fertilizer to match with inorganic fertilizer, and with multiple-microorganism or energy-rich compound, can improve soil physical and chemical property, strengthen water conservation, fertilizer conservation performance, improve and continue feeder capability; The 2nd, can significantly suppress the diseases such as cotton, melon droop and rice sheath blight disease, strengthen anti-adversity ability; The 3rd, can improve the quality of crops, particularly fairly obvious to the sugariness of the fruit such as raising watermelon, sugarcane, strawberry; The 4th, can promote increasing crop yield, generally use biological organic complex fertilizer than the volume increase of single administration chemical fertilizer 10% left and right; The 5th, the pollution that can alleviate agricultural environment, produces non-harmful food with crop and fruit.The soil that hardens is had to good improving effect.
Purposes: the organic fertilizer of grain and flowers.
Production unit: Chengdu Kai Tai new technology Co., Ltd.Network address: www.cdchempep.com
2, ammonium nitrate (industrial goods);
3, potassium nitrate (industrial goods)
4, ammonium dihydrogen phosphate (ADP) (industrial goods)
5, vitamin C (industrial goods)
Be subject to each weight percentages of components in the oil degradation agent in oil contaminated soil to be:
1, CDKT-004 compoiste fertilizer (industrial goods): 85～90%;
2, ammonium nitrate (industrial goods): 0.5～0.65%;
3, potassium nitrate (industrial goods): 1.25～1.5%;
4, vitamin C: 0.045～0.055%;
5, all the other are ammonium dihydrogen phosphate (ADP).
Two, be subject to the production method of the oil degradation agent in oil contaminated soil
Capital equipment: LHY-15 Horizontal type helical ribbon mixer, Shanghai Sheng Li Machinery Manufacturing Co., Ltd. produces.
Production method: five kinds of raw materials such as CDKT-004 compoiste fertilizer, ammonium nitrate, potassium nitrate, vitamin C ammonium dihydrogen phosphate (ADP) are added to LHY-15 Horizontal type helical ribbon mixer by weight proportion, under the rotating speed of 14rpm/h, mix 3～4 hours, obtain being subject to the oil degradation agent in oil contaminated soil.
Utilization is subject to the oil degradation agent in oil contaminated soil, and the method for the polluted soil Crude Oil of degrading is that near the soil that is subject to crude oil pollution oil well is dug out.In being subject to the soil of crude oil pollution, add the oil degradation agent and the water that are subject in oil contaminated soil, stir, then stack 14～16 days, by the soil after stacking again evenly shakedown be sprinkled upon march into the arena upper or for planting flowers.Be subject to crude oil pollution soil, to be subject to oil degradation agent in oil contaminated soil and the ratio of water be 100: 10～8: 2; During stacking, can pile prismatoid, cone or frustum of a cone body.
Beneficial effect of the present invention: the present invention is subject to the oil degradation agent in oil contaminated soil, the crude oil that can degrade in polluted soil, degrades the former oil concentration in soil to 15g/kg left and right from 100g/kg.Soil energy Planting Crops and flowers after processing; Reduced environmental pollution.
The specific embodiment
Embodiment 1: the present invention is subject to the oil degradation agent in oil contaminated soil, and each weight percentages of components is:
1, CDKT-004 compoiste fertilizer (industrial goods): 85%;
2, ammonium nitrate (industrial goods): 0.6%;
3, potassium nitrate (industrial goods): 1.33%;
4, vitamin C: 0.05%;
5, ammonium dihydrogen phosphate (ADP) is 12.01%, and each weight percentages of components sum is absolutely.
Be subject to the preparation method of the oil degradation agent in oil contaminated soil: five kinds of raw materials such as CDKT-004 compoiste fertilizer, ammonium nitrate, potassium nitrate, vitamin C ammonium dihydrogen phosphate (ADP) are added to LHY-15 Horizontal type helical ribbon mixer by weight proportion, under the rotating speed of 14rpm/h, mix 3.5 hours, obtain for the treatment of oil contaminated soil medicament.
Use is subject to the oil degradation agent in oil contaminated soil, and the method (using method) of the polluted soil Crude Oil of degrading is that near the soil that is subject to crude oil pollution oil well is dug out.In being subject to the soil of crude oil pollution, add the oil degradation agent and the water that are subject in oil contaminated soil, stir, then stack 14 days, by the soil after stacking again evenly shakedown be sprinkled upon march into the arena upper or for planting flowers.Being subject to the ratio of soil, processing oil contaminated soil medicament and the water of crude oil pollution is 100: 10: 2; During stacking, pile prismatoid.
Embodiment 2: be subject to each weight percentages of components of oil degradation agent in oil contaminated soil to be:
1, CDKT-004 compoiste fertilizer (industrial goods): 87%;
2, ammonium nitrate (industrial goods): 0.5%;
3, potassium nitrate (industrial goods): 1.29%;
4, vitamin C: 0.045%;
5, ammonium dihydrogen phosphate (ADP) is 12.01%, and each weight percentages of components sum is absolutely.
Preparation is subject to the method for the oil degradation agent in oil contaminated soil and the polluted soil Crude Oil of degrading identical with embodiment 1.
Embodiment 3: be subject to each weight percentages of components of oil degradation agent in oil contaminated soil to be:
1, CDKT-004 compoiste fertilizer (industrial goods): 85～90%;
2, ammonium nitrate (industrial goods): 0.5～0.65%;
3, potassium nitrate (industrial goods): 1.25～1.5%;
4, vitamin C: 0.045～0.055%;
5, ammonium dihydrogen phosphate (ADP) is 9.962%, and each weight percentages of components sum is absolutely.
Preparation is subject to the oil degradation agent in oil contaminated soil, and the method for the polluted soil Crude Oil of degrading is identical with embodiment 1.
Embodiment 4: be subject to each weight percentages of components of oil degradation agent in oil contaminated soil to be:
1, CDKT-004 compoiste fertilizer (industrial goods): 85～90%;
2, ammonium nitrate (industrial goods): 0.5～0.65%;
3, potassium nitrate (industrial goods): 1.25～1.5%;
4, vitamin C: 0.045～0.055%;
5, ammonium dihydrogen phosphate (ADP) is 8.82%, and each weight percentages of components sum is absolutely.
Preparation is subject to the oil degradation agent in oil contaminated soil, and the method for the polluted soil Crude Oil of degrading is identical with embodiment 1.
Embodiment 5: be subject to each weight percentages of components of oil degradation agent in oil contaminated soil to be:
1, CDKT-004 compoiste fertilizer (industrial goods): 85～90%;
2, ammonium nitrate (industrial goods): 0.5～0.65%;
3, potassium nitrate (industrial goods): 1.25～1.5%;
4, vitamin C: 0.045～0.055%;
5, ammonium dihydrogen phosphate (ADP) is 7.846%, and each weight percentages of components sum is absolutely.
Preparation is subject to the method for the oil degradation agent in oil contaminated soil and the polluted soil Crude Oil of degrading identical with embodiment 1.
Claims (1)
1. be subject to the oil degradation agent in oil contaminated soil, each weight percentages of components is:
CDKT-004 compoiste fertilizer: 85～90%;
Ammonium nitrate: 0.5～0.65%;
Potassium nitrate: 1.25～1.5%;
Vitamin C: 0.045～0.055%;
All the other are ammonium dihydrogen phosphate (ADP);
The described oil degradation agent preparation method in oil contaminated soil that is subject to is: CDKT-004 compoiste fertilizer, ammonium nitrate, potassium nitrate, vitamin C, five kinds of raw materials of ammonium dihydrogen phosphate (ADP) are added to LHY-15 Horizontal type helical ribbon mixer by weight proportion, under the rotating speed of 14r/h, mix 3～4 hours, obtain being subject to the oil degradation agent in oil contaminated soil;
The described oil degradation agent using method in oil contaminated soil that is subject to is that near the soil that is subject to crude oil pollution oil well is dug out; In being subject to the soil of crude oil pollution, add the oil degradation agent and the water that are subject in oil contaminated soil, stir, then stack 14～16 days, by the soil after stacking again evenly shakedown be sprinkled upon march into the arena upper or for planting flowers; Being subject to the ratio of soil, oil degradation agent and the water of crude oil pollution is 100:10～8:2; During stacking, pile prismatoid, cone or frustum of a cone body.
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| CN102674648B (en) * | 2012-06-01 | 2013-09-04 | 中国石油天然气股份有限公司 | Method for treating oily sludge |
| CN102807305B (en) * | 2012-08-23 | 2013-11-06 | 中国石油天然气股份有限公司 | Biological agent for treating oily sludge and using method thereof |
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