CN106734186A - A kind of oil-polluted soils in-situ remediation method - Google Patents
A kind of oil-polluted soils in-situ remediation method Download PDFInfo
- Publication number
- CN106734186A CN106734186A CN201611238206.3A CN201611238206A CN106734186A CN 106734186 A CN106734186 A CN 106734186A CN 201611238206 A CN201611238206 A CN 201611238206A CN 106734186 A CN106734186 A CN 106734186A
- Authority
- CN
- China
- Prior art keywords
- oil
- biogas residue
- soil
- mixed
- polluted soils
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The present invention provides a kind of method of new in-situ treatment oil-polluted soils, its thinking is to cultivate the stronger biogas residue microbial inoculum of hydrolysis acidification function first, originally it was to be injected into contaminated soil, alcohol is used simultaneously by soil petrochina dissolution, microorganism in biogas residue is by the use of alcohol as carbon source, it is significantly more efficient by solution petrochina decomposition and inversion, while the addition of alcohol also improves the bioavailability of soil petrochina.
Description
Technical field
The present invention provides a kind of method of new in-situ treatment oil-polluted soils, and its thinking is to cultivate hydrolysis acidification first
The stronger biogas residue microbial inoculum of function, was to be injected into contaminated soil originally, while using alcohol by soil petrochina dissolution, in biogas residue
Microorganism is significantly more efficient by solution petrochina decomposition and inversion by the use of alcohol as carbon source, while the addition of alcohol is also improved
The bioavailability of soil petrochina.This method is a kind of method of restoration of the ecosystem oil soil, belongs to field of environment protection.
Background technology
With the development and the expansion of urbanization process of industrial or agricultural, a large amount of soil are by oil pollution.Current petrolization side
Method mainly has Thermal desorption method and advanced oxidation processes, Thermal desorption method high cost, and easily generates atmosphere pollution.Advanced oxidation processes are added
Substantial amounts of chemical agent, easy contaminated soil.Current microbial method is increasingly paid close attention to, Application No.
CN201410031538.9 describes a kind of method that bioanalysis repairs oil soil.The method is ecological and cost is relatively low, but
Reaction time is extremely long, and this is because oil is difficult to be dissolved in water, it is difficult to obtained by biology.CN201310625720.2 describes one kind
The method of biological treatment oil, first adds surfactant and causes that oil is separated from soil, improve its can availability so that quilt
Biology obtains the method for degraded.But the method reaction time is more than 40 days, and after surfactant addition, can severe contamination soil
Earth, also easily causes the hardened of soil in its degradation process.Additionally, the reparation of related soil is mostly confined to showering, it is right
In-situ immobilization has no way of being related to.
The content of the invention
In view of the shortcomings of the prior art, the present invention uses a kind of method of new in-situ treatment oil soil.The method is first
First pass through and stalk is added toward biogas residue, prepare biogas residue microbial inoculum, make biogas residue hydrolysis acidification bacterium increased activity, be then to decompose oil to carry
For basis.Then biogas residue microbial inoculum is mixed with alcoholic solution, original position is injected into soil, alcohol leaching soil petrochina, and be
Microorganism can be using alcohol as carbon source in biogas residue microbial inoculum, and enhanced hydrolysis are acidified decomposition of the bacterium to oil, also strengthens in biogas residue it
Degraded of its flora to oil.Subsequent groundwater abstraction is simultaneously recycled into soil by pressurization, by after multiple recharge, by soil
Organic contamination is synchronously removed in earth petrochina and biogas residue.This technique is comprised the steps of：
(1) stalk is crushed, is mixed with biogas residue, mixed proportion is stalk：Biogas residue mass ratio（1-100）：10, while addition accounts for natural pond
The KNO of slag amount 0.1-5%3, maintain mixing water content of matter in 60-200%, react 1-20 days, it is configured to biogas residue microbial inoculum；
(2) biogas residue microbial inoculum is mixed with alcoholic solution, mixed proportion is (1-10)：5, mixed solution is pressurizeed by injection well
In injection soil, injection pressure is in 0.1-1Mpa, mixed solution injection rate and soil ratio（1-10）：10；
(3) after being spaced 1-20 days, underground water is pressurizeed and injected in soil by groundwater abstraction by injection well, and injection pressure is in 0-
1Mpa, and monitor underground water COD and oil content；
(4) continuous repeat step (3), until meet underground water oil simultaneously not detecting, COD<50mg/L, soil remediation terminates.
Compared to traditional Biochemical method petrolization method, this method has following advantage：
1. effective in-situ immobilization oil soil is realized；
2. oil is repaired more thoroughly, and this is because alcohol is by the preferable dissolution of oil so that microorganism is more prone to obtain, together
When biogas residue in microorganism to decompose oil in the case of having alcohol as carbon source extremely strong, especially enhancing its hydrolysis acidification bacterium
On the basis of；
3. the soil after processing has preferably ecological, and biogas residue can easily drop after being added to soil as nutriment, alcohol
Solution, therefore do not result in secondary pollution；
4. the synchronous synchronization process for realizing contaminated soil and biogas residue, makes oil and COD effectively remove.
Specific implementation example is as follows：
Embodiment 1：
(1) stalk is crushed, is mixed with biogas residue, mixed proportion is stalk：Biogas residue mass ratio 1：1, while addition accounts for biogas residue quality
1% KNO3, maintain mixing water content of matter 200%, react 20 days, it is configured to biogas residue microbial inoculum；
(2) biogas residue microbial inoculum is mixed with alcoholic solution, mixed proportion is 1：5, mixed solution is pressurizeed by injection well injects soil
In earth, in 0.1-1Mpa, mixed solution injection rate and soil ratio are 3 to injection pressure：10；
(3) after being spaced 1-20 days, underground water is pressurizeed and injected in soil by groundwater abstraction by injection well, and injection pressure is in 0-
1Mpa, and monitor underground water COD and oil content；
(4) after repeat step (3) 5 times, underground water oil is not detected, COD<50mg/L, soil remediation terminates, soil petrochina from
2000mg/kg is reduced to below 5mg/kg.
Embodiment 2：
(1) stalk is crushed, is mixed with biogas residue, mixed proportion is stalk：Biogas residue mass ratio 3：1, while addition accounts for biogas residue quality
5% KNO3, maintain mixing water content of matter 60%, react 20 days, it is configured to biogas residue microbial inoculum；
(2) biogas residue microbial inoculum is mixed with alcoholic solution, mixed proportion is 1：5, mixed solution is pressurizeed by injection well injects soil
In earth, in 0.1-1Mpa, mixed solution injection rate and soil ratio are 9 to injection pressure：10；
(3) after being spaced 1-20 days, underground water is pressurizeed and injected in soil by groundwater abstraction by injection well, and injection pressure is in 0-
1Mpa, and monitor underground water COD and oil content；
(4) after repeat step (3) 3 times, underground water oil is not detected, COD<50mg/L, soil remediation terminates, soil petrochina from
2000mg/kg is reduced to below 5mg/kg.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference to foregoing reality
Example is applied to be described in detail the present invention, for the person of ordinary skill of the art, still can be to foregoing implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these are changed or replace
Change, do not make the spirit and scope of the essence disengaging claimed technical solution of the invention of appropriate technical solution.
Claims (4)
1. a kind of oil-polluted soils in-situ remediation method, it is characterized in that, comprise the steps of：
(1) stalk is crushed, is mixed with biogas residue, mixed proportion is stalk：Biogas residue mass ratio（1-100）：10, while addition accounts for natural pond
The KNO of slag amount 0.1-5%3, maintain mixing water content of matter in 60-200%, react 1-20 days, it is configured to biogas residue microbial inoculum；
(2) biogas residue microbial inoculum is mixed with alcoholic solution, mixed proportion is (1-10)：5, mixed solution is pressurizeed by injection well
In injection soil, injection pressure is in 0.1-1Mpa, mixed solution injection rate and soil ratio（1-10）：10；
(3) after being spaced 1-20 days, underground water is pressurizeed and injected in soil by groundwater abstraction by injection well, and injection pressure is in 0-
1Mpa, and monitor underground water COD and oil content；
(4) continuous repeat step (3), until meet underground water oil simultaneously not detecting, COD<50mg/L.
2. a kind of oil-polluted soils in-situ remediation method as claimed in claim 1, it is characterized in that, described alcoholic solution is
Alcoholic solution containing ethanol 0.5%-40%.
3. a kind of oil-polluted soils in-situ remediation method as claimed in claim 1, it is characterized in that, step（2）It is middle to be added
Biogas residue microbial inoculum directly can be replaced with biogas residue.
4. a kind of oil-polluted soils in-situ remediation method as claimed in claim 1, it is characterized in that, described alcoholic solution can
Using by methyl alcohol etc. can simultaneously as organic solvent and bacteriotrophy liquid component substitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238206.3A CN106734186A (en) | 2016-12-28 | 2016-12-28 | A kind of oil-polluted soils in-situ remediation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238206.3A CN106734186A (en) | 2016-12-28 | 2016-12-28 | A kind of oil-polluted soils in-situ remediation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106734186A true CN106734186A (en) | 2017-05-31 |
Family
ID=58923981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611238206.3A Pending CN106734186A (en) | 2016-12-28 | 2016-12-28 | A kind of oil-polluted soils in-situ remediation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106734186A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088577A (en) * | 2017-06-20 | 2017-08-25 | 复源环境（深圳）有限公司 | A kind of purifier of contaminated soil containing POPs and method |
| CN107243508A (en) * | 2017-06-20 | 2017-10-13 | 青岛理工大学 | A kind of method of quick disposal oil-contaminated soil |
| CN107311414A (en) * | 2017-06-20 | 2017-11-03 | 青岛理工大学 | A kind of method of utilization biogas residue and photochemical catalytic oxidation cooperative disposal oil sludge and sand |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104177A (en) * | 2007-08-01 | 2008-01-16 | 中国石油化工股份有限公司 | In-situ biological repairing method for biomass intensified petroleum contaminative soil |
| CN101797581A (en) * | 2010-04-08 | 2010-08-11 | 沈阳大学 | Ecological method for restoring polycyclic aromatic hydrocarbon polluted farmland soil |
| CN101898198A (en) * | 2009-05-27 | 2010-12-01 | 中国石油天然气集团公司 | Method for remedying oil pollution by unitedly using air shatter crack and microorganism and device thereof |
| CN103170498A (en) * | 2013-03-07 | 2013-06-26 | 中国石油天然气集团公司 | Light oil polluted unsaturated zone soil in-situ remediation apparatus and method thereof |
| CN105255786A (en) * | 2015-11-18 | 2016-01-20 | 云南大学 | Strain with phenanthrene degradation ability |
-
2016
- 2016-12-28 CN CN201611238206.3A patent/CN106734186A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104177A (en) * | 2007-08-01 | 2008-01-16 | 中国石油化工股份有限公司 | In-situ biological repairing method for biomass intensified petroleum contaminative soil |
| CN101898198A (en) * | 2009-05-27 | 2010-12-01 | 中国石油天然气集团公司 | Method for remedying oil pollution by unitedly using air shatter crack and microorganism and device thereof |
| CN101797581A (en) * | 2010-04-08 | 2010-08-11 | 沈阳大学 | Ecological method for restoring polycyclic aromatic hydrocarbon polluted farmland soil |
| CN103170498A (en) * | 2013-03-07 | 2013-06-26 | 中国石油天然气集团公司 | Light oil polluted unsaturated zone soil in-situ remediation apparatus and method thereof |
| CN105255786A (en) * | 2015-11-18 | 2016-01-20 | 云南大学 | Strain with phenanthrene degradation ability |
Non-Patent Citations (2)
| Title |
|---|
| 冉德发等: "《石油类污染地下水的原位修复技术方法论述》", 《探矿工程（岩土钻掘工程）》 * |
| 洪坚平等: "《应用微生物学》", 28 February 2011, 中国林业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088577A (en) * | 2017-06-20 | 2017-08-25 | 复源环境（深圳）有限公司 | A kind of purifier of contaminated soil containing POPs and method |
| CN107243508A (en) * | 2017-06-20 | 2017-10-13 | 青岛理工大学 | A kind of method of quick disposal oil-contaminated soil |
| CN107311414A (en) * | 2017-06-20 | 2017-11-03 | 青岛理工大学 | A kind of method of utilization biogas residue and photochemical catalytic oxidation cooperative disposal oil sludge and sand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103418608B (en) | A kind of method of microbial-chemical method combine d bioremediation heavy metal polluted soil in mine field | |
| CN105772499A (en) | In-situ combined remediation method for petroleum contaminated site soil | |
| WO2017206844A1 (en) | In-situ detoxification method for site heavily contaminated with hexavalent chromium, and chromium soil remediation microbial agent and preparation method therefor | |
| CN105170644A (en) | Bioremediation method for petroleum-polluted soil | |
| CN106734186A (en) | A kind of oil-polluted soils in-situ remediation method | |
| CN104941993B (en) | A kind of method for comprehensive repairing in serious pollution soil | |
| CN104445570A (en) | Method for removing polycyclic aromatic hydrocarbon methylnaphthalene substance by adopting double oxidants including persulfate and calcium peroxide | |
| Ajona et al. | Bio-remediation of crude oil contaminated soil using recombinant native microbial strain | |
| Dai et al. | Bioremediation of heavy oil-contaminated intertidal zones using slow-release nutrients and rhamnolipid biosurfactants | |
| CN105750324B (en) | A method of repairing DDT, polycyclic aromatic hydrocarbon composite pollution soil | |
| CN106583443A (en) | Method capable of synchronously treating biogas residues and pesticide polluted soil | |
| CN108676561B (en) | In-situ preparation method and application of coastal petroleum polluted soil remediation agent | |
| JP6626249B2 (en) | In situ chemical immobilization of metal contaminants | |
| CN106424109A (en) | Polycyclic aromatic hydrocarbon contaminated soil restoring technology | |
| CN105935695A (en) | Novel contaminated site Hg in-situ detoxifying method based on biogas residues | |
| CN110961451A (en) | Soil remediation material for oxidative degradation of organic pollutants and soil remediation method | |
| CN105750317A (en) | Restoration method for chromium-polluted soil | |
| Ebrahimi et al. | Removal efficiency of linear alkyl benzene sulfonate (las) in Yazd stabilization pond | |
| WO2018233614A1 (en) | Method for rapid processing oil-containing soil, and applications thereof | |
| Petruzzelli | Soil contamination and remediation strategies. Current research and future challenge | |
| CN104259195A (en) | Contaminated soil repair method | |
| CN108410472A (en) | A kind of composite drug and its application method for low concentrations of chromium contaminated soil remediation | |
| Gnanasalomi et al. | Bioremediation of hazardous pollutants using fungi | |
| CN103639186B (en) | Cationic surfactant is utilized to reduce the method for air pollution in soil remediation | |
| Shi et al. | Research on heavy metal pollution remediation technology in farmland soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
|
| WD01 | Invention patent application deemed withdrawn after publication |