CN109628101A - It is a kind of for petroleum hydrocarbon contaminated soil-repairing agent and its preparation method and application - Google Patents
It is a kind of for petroleum hydrocarbon contaminated soil-repairing agent and its preparation method and application Download PDFInfo
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- CN109628101A CN109628101A CN201811404789.1A CN201811404789A CN109628101A CN 109628101 A CN109628101 A CN 109628101A CN 201811404789 A CN201811404789 A CN 201811404789A CN 109628101 A CN109628101 A CN 109628101A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2101/00—Agricultural use
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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Abstract
The invention belongs to organic polluted soils to repair field, be related to a kind of for petroleum hydrocarbon contaminated soil-repairing agent, including solid powder medicament and liquid preparation；Component that solid powder medicament includes and its percentage for accounting for solid powder medicament: wheat straw biologic charcoal 40-85%, urea 5-20%, dipotassium hydrogen phosphate 3-15%, flyash 5-35%；Component that liquid preparation includes and its percentage for accounting for liquid preparation: paste rhamnolipid 3-15%, distilled water 85-97%.The present invention provides the preparation method of above-mentioned soil-repairing agent, will crack after wheat straw biologic charcoal obtained is mixed with urea, dipotassium hydrogen phosphate, flyash and crushes, obtains solid powder medicament；Take cream shape rhamnolipid is scattered in distilled water, obtains liquid preparation.The present invention provides the application of above-mentioned soil-repairing agent, successively applies in petroleum hydrocarbon contaminated soil solid powder medicament, liquid preparation, stirs evenly, moisturizing, placement.Soil-repairing agent of the invention can enhance the degradation capability of local petroleum hydrocarbon degradation bacterium, reduce petroleum hydrocarbon content.
Description
Technical field
The invention belongs to organic polluted soil recovery technique fields, and in particular to one kind is used for petroleum hydrocarbon contaminated dry farmland
Soil-repairing agent and its preparation method and application.
Background technique
The petroleum energy important as one kind is the blood of modern economy, with daily life, industrial production, space flight military project
Deng rapid development, the consumption of petroleum increasing year by year, while each during PETROLEUM PROCESSING, transport, storage and utilization
Kind leakage accident also results in the petroleum hydrocarbon contaminated of soil.Agricultural land soil is the base that the mankind obtain food and other available resources
The accident of a lot of petroleum hydrocarbon contaminated agricultural land soils has occurred in recent years in plinth, after petroleum hydrocarbon enters in soil, to soil environment matter
Amount has the influence of various aspects, and the accumulation of petroleum hydrocarbon can cause soil aperture to block in one side soil, hinders root system of plant
Breathing and absorption, cause root system rot, influence the root growth of plant, meanwhile, petroleum hydrocarbon can be also enriched with finally in plant
Entered in body by food chain, causes environmental risk and human health risk；On the other hand, not by the stone of adsorption by soil
Petroleum hydrocarbon may permeate the ground and polluted underground water, increases pollution range, to generate to many levels of environment for human survival wide
General influence.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, it safe and economical is used for the object of the present invention is to provide a kind of
The soil-repairing agent and its preparation method and application of petroleum hydrocarbon contaminated dry farmland, can be effectively reduced the petroleum of dry farmland soil
Hydrocarbon content can fundamentally prevent petroleum hydrocarbon from entering in dry farmland plant.
To achieve the above object, the technical scheme is that it is a kind of for petroleum hydrocarbon contaminated soil-repairing agent, including
Solid powder medicament and liquid preparation；The component and its account for the solid powder medicament gross mass that the solid powder medicament includes
Percentage: wheat straw biologic charcoal 40-85%, urea 5-20%, dipotassium hydrogen phosphate 3-15%, flyash 5-35%；The liquid
Component that medicament includes and its percentage for accounting for the liquid preparation gross mass: paste rhamnolipid 3-15%, distilled water 85-
97%。
Further, the solid powder medicament includes component and its percentage for accounting for the solid powder medicament gross mass
Than: wheat straw biologic charcoal 50-80%, urea 5-15%, dipotassium hydrogen phosphate 5-10%, flyash 5-30%；The liquid preparation packet
The component that includes and its percentage for accounting for the liquid preparation gross mass: paste rhamnolipid 5-10%, distilled water 90-95%.
Further, the granularity of the solid powder medicament is 100-200 mesh.
Preferably, the solid powder medicament includes component and its percentage for accounting for the solid powder medicament gross mass
Than: wheat straw biologic charcoal 80%, urea 10%, dipotassium hydrogen phosphate 5%, flyash 5%；Component that the liquid preparation includes and its
Account for the percentage of the liquid preparation gross mass: paste rhamnolipid 5%, distilled water 95%.
Preferably, the solid powder medicament includes component and its percentage for accounting for the solid powder medicament gross mass
Than: wheat straw biologic charcoal 50%, urea 15%, dipotassium hydrogen phosphate 5%, flyash 30%；Component that the liquid preparation includes and
Its percentage for accounting for the liquid preparation gross mass: paste rhamnolipid 10%, distilled water 90%.
The present invention also provides the above-mentioned preparation methods for petroleum hydrocarbon contaminated soil-repairing agent, include the following steps:
(1) it is dried after cleaning wheat stalk, is cut into the segment of 1-2cm long, wheat stalk is put into crucible and covers crucible
Lid, is placed in 250-350 DEG C of Muffle furnace and cracks 3-5 hours, takes out cooling, crosses 60-100 mesh, obtains wheat straw biologic charcoal；
(2) it is mixed according to certain mass percent that urea, dipotassium hydrogen phosphate, flyash and above-mentioned wheat straw biologic charcoal are weighed
It after closing uniformly, crushes, crosses 100-200 mesh, the solid powder medicament is made；
(3) take cream shape rhamnolipid is well-dispersed in distilled water according to certain mass percent, and the liquid preparation is made.
The present invention provides the above-mentioned application for petroleum hydrocarbon contaminated soil-repairing agent, when in use, first by the solid
Powder medicine is applied into petroleum hydrocarbon contaminated soil, is stirred evenly, then the liquid preparation is applied the petroleum hydrocarbon contaminated soil
In, it stirs evenly；Then moisturizing to water capacity is maintained at 55-65%, places 25-30 days.
Further, the solid powder medicament dosage is the 1-3% of soil quality, and the liquid medicine dosage is soil
The 1-2% of quality.
The design principle of soil-repairing agent of the invention is as follows:
Dryland soil petroleum hydrocarbon contaminated renovation agent in farmland includes the liquid preparation of solid powder medicament and white " milky "；Wherein,
Solid powder medicament includes wheat straw biologic charcoal, urea, dipotassium hydrogen phosphate and flyash；
Wheat straw biologic charcoal phosphorus content is higher, can effectively improve soil fertility, and can be used as the carbon source of microorganism by micro- life
Object utilizes；The carbon source that petroleum hydrocarbon degradation bacterium can make full use of charcoal to provide, petroleum hydrocarbon degradation bacterium can mushroom out breeding, improve
Abundance is more effectively completed petroleum hydrocarbon degradation process；
Wheat straw biologic charcoal can effectively improve soil environment, can especially be obviously improved aeration status；Due to most of petroleum
Surfactant hydrocarbon degradation bacteria is aerobic bacteria, and good aerobic environment can further improve the activity of petroleum hydrocarbon degradation bacterium, while good soil
Environment can be such that the short chain petroleum hydrocarbon after petroleum hydrocarbon degradation bacterium fully degraded evaporates into atmosphere；
Nitrogen source, phosphorus and potassium needed for the addition of urea and dipotassium hydrogen phosphate can provide growth for petroleum hydrocarbon degradation bacterium, it is combinable
The original nutrient content of soil, by adjusting the proportion of solid powder medicament, to be supplied to the most suitable carbon nitrogen phosphorus of petroleum hydrocarbon degradation bacterium
Potassium ratio can more effectively play a role, degradation of contaminant；
Flyash is the pH that soil can be improved in alkaline matter, and flyash dosage, control soil are suitably adjusted in renovation agent use process
Earth pH provides good weakly alkaline environment between 7-8.5, for petroleum hydrocarbon degradation bacterium decomposing petroleum hydrocarbon；In acid stronger farmland
Can increase flyash dosage in petroleum hydrocarbon contaminated soil, pH rise can activating part petroleum hydrocarbon degradation bacterium activity；
Dryland soil petroleum hydrocarbon contaminated renovation agent in farmland further includes the liquid medicine of white " milky " in addition to solid powder medicament
Agent；
The liquid preparation preparation process of the white " milky " is that take cream shape rhamnolipid weight percent 5-10% is well-dispersed in weight
It is made in the distilled water of percentage 90%-95%, which needs ready-to-use；
The degradation capability of microorganism can be enhanced as a kind of common surfactant in rhamnolipid, and surfactant is added
Can there are certain solubilising and peptizaiton after into soil to petroleum hydrocarbon, to accelerate petroleum hydrocarbon from soil deposit composition granule table
The desorption in face, the stronger petroleum hydrocarbon of mobility can more be made full use of degradation by petroleum hydrocarbon degradation bacterium.
The raw material that the present invention prepares renovation agent is generally existing and can obtain easily, and all raw material is all universal in various industries
Using without secondary pollution to environment and cheap；The present invention can be different according to the pollution level of dry farmland contaminated soil, make
With the renovation agent of different proportion, therefore in dry farmland petroleum hydrocarbon contaminated soil reparation application, not only economically feasible, Er Qieying
It uses more flexibly.
Compared with prior art, the invention has the following advantages:
(1) the petroleum hydrocarbon content of dry farmland soil can be effectively reduced in the use of soil-repairing agent provided by the invention, from basic
On prevent petroleum hydrocarbon from entering in dry farmland plant, have it is at low cost, manufacturing process is simple, it is easy to operate, it is easy promote etc. it is excellent
Point；
(2) soil-repairing agent provided by the invention can enhance local petroleum hydrocarbon degradation bacterium in dry farmland petroleum hydrocarbon contaminated soil
Degradation capability, significantly reduce petroleum hydrocarbon concentration, prevent petroleum hydrocarbon from entering in crops, fundamentally prevent petroleum hydrocarbon from entering food
Object chain, ensures food safety；
(3) soil-repairing agent provided by the invention is used in mixed way promotion petroleum hydrocarbon using the proportion of the progress science of various raw materials
The activity and abundance of degradation bacteria, to be repaired for petroleum hydrocarbon farmland pollution soil；
(4) soil-repairing agent provided by the invention is raw materials used relatively conventional and is easy to get, pollution-free without exceeded, not will cause two
Secondary pollution；
(5) soil-repairing agent provided by the invention is applicable in the petroleum hydrocarbon contaminated dry farmland soil of different pollution levels, and can be with
Apply the renovation agent of different proportion according to the actual situation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is that the petroleum hydrocarbon contaminated loam soil of dry farmland is each in soil after adding renovation agent in the embodiment of the present invention 1
Section petroleum hydrocarbon changes of contents；
Fig. 2 is the petroleum hydrocarbon contaminated loam soil of dry farmland each section of stone in soil after adding renovation agent in the embodiment of the present invention 2
Petroleum hydrocarbon changes of contents.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent, including solid powder medicament and liquid
Medicament；Component that the solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat stalk
Charcoal 40-85%, urea 5-20%, dipotassium hydrogen phosphate 3-15%, flyash 5-35%；Component that the liquid preparation includes and its
Account for the percentage of the liquid preparation gross mass: paste rhamnolipid 3-15%, distilled water 85-97%.Soil provided by the invention
Renovation agent can enhance the degradation capability of local petroleum hydrocarbon degradation bacterium in dry farmland petroleum hydrocarbon contaminated soil, significantly reduce petroleum
Hydrocarbon concentration, prevents petroleum hydrocarbon from entering in crops, fundamentally prevents petroleum hydrocarbon from entering food chain, ensures food safety.
Further, the granularity of the solid powder medicament is 100-200 mesh.Soil-repairing agent provided in this embodiment
Granularity is 100-200 mesh after solid powder medicament crushes, and white milky liquid medicament requires to mix well and ready-to-use.
The present invention also provides the above-mentioned preparation methods for petroleum hydrocarbon contaminated soil-repairing agent, include the following steps:
(1) it is dried after cleaning wheat stalk, is cut into the segment of 1-2cm long, wheat stalk is put into crucible and covers crucible
Lid, is placed in 250-350 DEG C of Muffle furnace and cracks 3-5 hours, takes out cooling, crosses 60-100 mesh, obtains wheat straw biologic charcoal；
(2) urea 5-20%, dipotassium hydrogen phosphate 3-15%, flyash 5-35% and above-mentioned are weighed according to certain mass percent
Wheat straw biologic charcoal 40-85% after mixing, is crushed, and crosses 100-200 mesh, the solid powder medicament is made；
(3) paste rhamnolipid 3-15% is weighed according to certain mass percent to be well-dispersed in 85-97% distilled water, be made
The liquid preparation.
The raw material that the present invention prepares renovation agent is generally existing and can obtain easily.All raw material is all universal in various industries
Using without secondary pollution to environment and cheap.The present invention can be different according to the pollution level of dry farmland contaminated soil, make
With the renovation agent of different proportion, therefore in dry farmland petroleum hydrocarbon contaminated soil reparation application, not only economically feasible, Er Qieying
It uses more flexibly.
The present invention provides the above-mentioned application for petroleum hydrocarbon contaminated soil-repairing agent, when in use, first by the solid
Powder medicine is applied into petroleum hydrocarbon contaminated soil, is stirred evenly, then the liquid preparation is applied the petroleum hydrocarbon contaminated soil
In, it stirs evenly；Then moisturizing to water capacity is maintained at 55-65%, places 25-30 days, during which primary every watering in three days
It keeps the water content of soil and to turn soil every 5 days primary.
Further, when being repaired using soil-repairing agent provided by the invention to petroleum hydrocarbon contaminated dry farmland, root
Solid powder medicament 1-3%, white milky liquid medicament 1-2% are applied by soil quality percentage according to the pollution situation of soil.
The present invention, can the minimum solid powder medicament 1% for adding soil quality percentage according to the difference of soil contamination grade
With the liquid preparation 1% of white " milky ", i.e., renovation agent per ton can repair 50 tons of contaminated soils.For petroleum hydrocarbon contaminated more serious
Dry farmland soil, can at most add the solid powder medicament 3% and white milky liquid medicament 2% of soil quality percentage,
Renovation agent i.e. per ton can repair 20 tons of contaminated soils.Therefore it is directed to the soil of different pollution levels, the ratio of renovation agent can be changed,
To reach best and most economical repairing effect, the soil after repairing will not generate secondary dirt because renovation agent is added
Dye.
Embodiment 1
It includes solid powder medicament and liquid preparation that the present embodiment provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent；It is described
Component that solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 80%,
Urea 10%, dipotassium hydrogen phosphate 5%, flyash 5%；The component and its account for the liquid preparation gross mass that the liquid preparation includes
Percentage: paste rhamnolipid 5%, distilled water 95%.
Soil-repairing agent provided in this embodiment repairs petroleum hydrocarbon contaminated soil, petroleum hydrocarbon hydrocarbon in soil after reparation
Method for measurement of concentration: applying solid powder medicament according to the 2% of soil quality, applies white " milky " according to the 1% of soil quality
The medicament of aforementioned proportion is successively mixed with a certain amount of loam soil, is fitted into PVC(polyvinyl chloride by liquid preparation) in box, add
Add moisture regulation soil moisture content be field capacity 60% or so, be placed at room temperature for, be replenished in time during test moisture and every
A soil is turned within 5 days, pedotheque inspection is taken after 30 days on-tests, measures the content of each section of petroleum hydrocarbon in soil.In addition,
By the way that the distilled water of equivalent is added, as blank control (CK).
After applying above-mentioned renovation agent, the content of each section of petroleum hydrocarbon is substantially reduced in soil, as shown in Figure 1, with blank pair
It takes a picture ratio, applying loam carbon in soil chain length after the renovation agent of the present embodiment is that the petroleum hydrocarbon of C6-C9 reduces 70%, carbochain
Length is that the petroleum hydrocarbon of C10-C14 reduces 37%, and carbon chain lengths are that the petroleum hydrocarbon of C15-C28 reduces 54%, and carbon chain lengths are
The petroleum hydrocarbon of C29-C36 reduces 62%.
Embodiment 2
It includes solid powder medicament and liquid preparation that the present embodiment provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent；It is described
Component that solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 50%,
Urea 15%, dipotassium hydrogen phosphate 5%, flyash 30%；The component and its account for the liquid preparation gross mass that the liquid preparation includes
Percentage: paste rhamnolipid 10%, distilled water 90%.
According to the petroleum hydrocarbon hydrocarbon method for measurement of concentration in embodiment 1, solid powder medicament additive amount is the 3% of soil quality,
White milky liquid additive amount of medicament is the 2% of soil quality, the results showed that, for clayed soil, after applying above-mentioned renovation agent,
Petroleum hydrocarbon content can be substantially reduced in soil, as shown in Fig. 2, gluing after applying the renovation agent of the present embodiment compared with blank control
Property carbon in soil chain length be C6-C9 petroleum hydrocarbon reduce 61%, carbon chain lengths are that the petroleum hydrocarbon of C10-C14 reduces 32%,
Carbon chain lengths are that the petroleum hydrocarbon of C15-C28 reduces 54%, and carbon chain lengths are that the petroleum hydrocarbon of C29-C36 reduces 68%.
Embodiment 3
It includes solid powder medicament and liquid preparation that the present embodiment provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent；It is described
Component that solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 40%,
Urea 15%, dipotassium hydrogen phosphate 10%, flyash 35%；The component and its account for the total matter of the liquid preparation that the liquid preparation includes
The percentage of amount: paste rhamnolipid 3%, distilled water 97%.
Embodiment 4
It includes solid powder medicament and liquid preparation that the present embodiment provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent；It is described
Component that solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 85%,
Urea 5%, dipotassium hydrogen phosphate 3%, flyash 7%；The component and its account for the liquid preparation gross mass that the liquid preparation includes
Percentage: paste rhamnolipid 15%, distilled water 85%.
Embodiment 5
It includes solid powder medicament and liquid preparation that the present embodiment provides a kind of for petroleum hydrocarbon contaminated soil-repairing agent；It is described
Component that solid powder medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 53%,
Urea 20%, dipotassium hydrogen phosphate 7%, flyash 20%；The component and its account for the liquid preparation gross mass that the liquid preparation includes
Percentage: paste rhamnolipid 12%, distilled water 88%.
Be respectively adopted embodiment 1-5 offer soil-repairing agent to petroleum hydrocarbon contaminated clay, loam and sand soil into
Row is repaired, and applies solid powder medicament according to the 1% of soil quality, applies the liquid medicine of white " milky " according to the 1% of soil quality
Agent, according to the petroleum hydrocarbon hydrocarbon method for measurement of concentration in embodiment 1, the content of each section of petroleum hydrocarbon such as table 1 in soil after being repaired
It is shown.
The content of each section of petroleum hydrocarbon is as shown in table 2 in clay, loam and sand before repairing.
Comprehensive Tables 1 and 2 can be seen that the soil-repairing agent of 1-5 of embodiment of the present invention offer respectively to petroleum hydrocarbon contaminated
Clay, loam and sand soil repaired after, can be significantly reduced the content of each section of petroleum hydrocarbon in soil；Wherein implement
The soil-repairing agent that example 1 provides is preferable to the repairing effect of loam soil, and the soil-repairing agent that embodiment 2 provides is to clay and sand
The repairing effect of soil is preferable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of for petroleum hydrocarbon contaminated soil-repairing agent, it is characterised in that: including solid powder medicament and liquid preparation；Institute
State the component and its percentage for accounting for the solid powder medicament gross mass that solid powder medicament includes: wheat straw biologic charcoal
40-85%, urea 5-20%, dipotassium hydrogen phosphate 3-15%, flyash 5-35%；The component and its account for described that the liquid preparation includes
The percentage of liquid preparation gross mass: paste rhamnolipid 3-15%, distilled water 85-97%.
2. as described in claim 1 a kind of for petroleum hydrocarbon contaminated soil-repairing agent, it is characterised in that: the solid powder
Component that medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 50-80%, urea
5-15%, dipotassium hydrogen phosphate 5-10%, flyash 5-30%；Component that the liquid preparation includes and its to account for the liquid preparation total
The percentage of quality: paste rhamnolipid 5-10%, distilled water 90-95%.
3. as described in claim 1 a kind of for petroleum hydrocarbon contaminated soil-repairing agent, it is characterised in that: the solid powder
The granularity of medicament is 100-200 mesh.
4. as described in claim 1 a kind of for petroleum hydrocarbon contaminated soil-repairing agent, it is characterised in that: the solid powder
Component that medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 80%, urea 10%,
Dipotassium hydrogen phosphate 5%, flyash 5%；Component that the liquid preparation includes and its percentage for accounting for the liquid preparation gross mass:
Paste rhamnolipid 5%, distilled water 95%.
5. as described in claim 1 a kind of for petroleum hydrocarbon contaminated soil-repairing agent, it is characterised in that: the solid powder
Component that medicament includes and its percentage for accounting for the solid powder medicament gross mass: wheat straw biologic charcoal 50%, urea 15%,
Dipotassium hydrogen phosphate 5%, flyash 30%；Component that the liquid preparation includes and its percentage for accounting for the liquid preparation gross mass
Than: paste rhamnolipid 10%, distilled water 90%.
6. a kind of preparation method as described in any one in claim 1-5 for petroleum hydrocarbon contaminated soil-repairing agent, special
Sign is, includes the following steps:
(1) it is dried after cleaning wheat stalk, is cut into the segment of 1-2cm long, wheat stalk is put into crucible and covers crucible
Lid, is placed in 250-350 DEG C of Muffle furnace and cracks 3-5 hours, takes out cooling, crosses 60-100 mesh, obtains wheat straw biologic charcoal；
(2) it is mixed according to certain mass percent that urea, dipotassium hydrogen phosphate, flyash and above-mentioned wheat straw biologic charcoal are weighed
After closing uniformly, crushes, the solid powder medicament is made；
(3) take cream shape rhamnolipid is well-dispersed in distilled water according to certain mass percent, and the liquid preparation is made.
7. a kind of application as described in any one in claim 1-5 for petroleum hydrocarbon contaminated soil-repairing agent, feature exist
In: when in use, first the solid powder medicament is applied into petroleum hydrocarbon contaminated soil, is stirred evenly, then by the liquid
Medicament applies in the petroleum hydrocarbon contaminated soil, stirs evenly；Then moisturizing to water capacity is maintained at 55-65%, places 25-
30 days.
8. being used for the application of petroleum hydrocarbon contaminated soil-repairing agent as claimed in claim 7, it is characterised in that: the solid powder
Last dosing is the 1-3% of soil quality, and the liquid medicine dosage is the 1-2% of soil quality.
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| CN201811404789.1A CN109628101B (en) | 2018-11-23 | 2018-11-23 | Soil remediation agent for petroleum hydrocarbon pollution and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110527515A (en) * | 2019-08-20 | 2019-12-03 | 北京上水环境科技发展有限公司 | A kind of petroleum hydrocarbon contaminated soil renovation agent and its preparation and application method |
| CN110846047A (en) * | 2019-11-28 | 2020-02-28 | 中冶南方都市环保工程技术股份有限公司 | Remediation agent for soil polluted by chlorine-containing organic pesticide in paddy field, preparation method and application |
| CN111363555A (en) * | 2020-03-17 | 2020-07-03 | 济宁学院 | Improver and method for improving agricultural soil by using coal-based solid waste |
| CN113072946A (en) * | 2019-12-17 | 2021-07-06 | 中国石油天然气集团有限公司 | Agent for in-situ remediation of petroleum hydrocarbon contaminated soil, preparation method and application thereof |
| CN114405990A (en) * | 2022-01-25 | 2022-04-29 | 森特士兴环保科技有限公司 | Construction method of organic phosphorus pesticide contaminated soil deodorization-greening composite system |
| CN114958385A (en) * | 2021-11-11 | 2022-08-30 | 中节能（连云港）清洁技术发展有限公司 | Soil conditioner |
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| CN114958385B (en) * | 2021-11-11 | 2023-09-22 | 中节能（连云港）清洁技术发展有限公司 | Soil conditioner |
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