CN106925607A - Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils - Google Patents
Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils Download PDFInfo
- Publication number
- CN106925607A CN106925607A CN201511010965.XA CN201511010965A CN106925607A CN 106925607 A CN106925607 A CN 106925607A CN 201511010965 A CN201511010965 A CN 201511010965A CN 106925607 A CN106925607 A CN 106925607A
- Authority
- CN
- China
- Prior art keywords
- soil
- negative electrode
- process unit
- electro
- anode
- 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
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses process unit and its method that a kind of Electro-Fenton process repairs PAHs contaminated soils, the process unit includes：The multiple negative electrodes for being parallel to each other and being disposed vertically（1）And anode（2）, external oxydol H2O2Storage tank（3）, constant voltage dc source（4）And shell（8）；Wherein：The multiple negative electrode（1）To be connected in parallel, the anode（2）To be connected in parallel, and by wire（7）With the constant voltage dc source（4）It is connected；The negative electrode（1）And anode（2）To be perpendicularly fixed at the activated carbon fiber material electrode in draw-in groove, the negative electrode（1）Activated carbon fiber material electrode and external H2O2Storage tank（3）Between be connected with chemical feed pipe.Using the present invention, electrochemical techniques and fenton-type reagent technology can be organically combined, effectively using ferro element intrinsic in soil, the effective degraded to PAHs in soil is realized in acid condition, repair process is simple and easy to apply, simple efficient and does not produce secondary pollution.
Description
Technical field
The process unit and its method of PAHs contaminated soils are repaired the present invention relates to the electrochemical treatments technology of polluted soil, more particularly to a kind of Electro-Fenton process, using PAHs in electrochemistry combination fenton-type reagent degraded soil.
Background technology
Polycyclic aromatic hydrocarbon（PAHs）It is one of carcinogen of earliest discovery in current nature, the free PAHs being distributed in air, water environment eventually enters soil by approach such as sedimentation, rainwashes, make soil as PAHs in surrounding medium main repository and terminal, the transmission by food chain for residuing in PAHs in soil eventually enters into human body, and extremely serious harm is produced to health.As the mankind continually develop utilization to petroleum chemicals, and PAHs, the features such as have toxicity, bioconcentration, half volatile and extended residual, PAHs pollutant concentrations increase year by year in soil.Therefore, the control of PAHs has turned into the main contents of domestic and foreign scholars research with recovery technique in research soil.
The restorative procedure to PAHs contaminated soils mainly has Physical, chemical method, plant method and microbial method at present.Wherein：Physical restoration often has that processing cost is high, workload is big, it is not thorough to repair, is easily destroyed soil texture influence ecological environment；Phytoremediation and microorganism remediation method have the advantages that simple to operate, operating cost is low, non-secondary pollution, but because degradation capability is limited, repairing efficiency is long, easily influenceed by the uncontrolled factor such as engineering local environment geological conditions and climatic factor, there is significant limitation in practical engineering application；Common chemical restoration, although such as chemical leaching, extraction technology have the advantages that treatment effeciency is high, repairing efficiency is short, processing cost is high, may cause the secondary pollution to environment.
For many problems present in current PAHs contaminated soil remediations process, a kind of technology of PAHs in degraded soil simple and easy to apply, quick, efficient, not producing secondary pollution is studied, be very important.
The content of the invention
In view of this, the process unit of PAHs contaminated soils is repaired it is a primary object of the present invention to provide a kind of Electro-Fenton process, electrochemical techniques and fenton-type reagent technology can be organically combined, the effective degraded to PAHs in soil can be realized in acid condition, simultaneously can be effectively using intrinsic ferro element in soil simple and easy to apply in practical engineering application, rapidly and efficiently and do not produce secondary pollution.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of Electro-Fenton process repairs the process unit of PAHs contaminated soils, including：The multiple negative electrodes 1 and anode 2 for being parallel to each other and being disposed vertically, external oxydol H2O2Storage tank 3, constant voltage dc source 4 and shell 8；Wherein：To be connected in parallel, the anode 2 is connected the multiple negative electrode 1 by wire 7 to be connected in parallel with the constant voltage dc source 4；The negative electrode 1 and anode 2 are the activated carbon fiber material electrode being perpendicularly fixed in draw-in groove, activated carbon fiber material electrode and the external H of the negative electrode 12O2Chemical feed pipe is connected between storage tank 3.
Wherein, the activated carbon fiber material electrode of the negative electrode 1 and external H2O2Dosing pump 5 is provided with the chemical feed pipe connected between storage tank 3.
The temperature controller 6 being connected with the constant voltage dc source 4 is provided with the shell 8 of the process unit.
The negative electrode 1 is distributed in and independent chemical feed pipe is equipped with the outermost layer of the multiple negative electrode 1 and anode 2, and each negative electrode 1, and the chemical feed pipe is connected with dosing pump 5.
Described shell 8 is acidproof, alkaline-resisting and electrically non-conductive material.
The temperature controller 6 being connected with constant voltage dc source 4, power supply is automatically cut off when temperature is more than 60 DEG C in the process unit.
A kind of method that Electro-Fenton process repairs PAHs contaminated soils, the method includes：
A, treat rehabilitating soil and sieved, remove stone therein and plastic products rubbish, then the acid-base property and humidity according to soil add diluted acid to adjust soil extract pH to 3 ~ 6, and soil of constantly stirring makes it fully mix；
B, electrode is installed, negative electrode 1, anode 2 are parallel to each other and be perpendicularly fixed in the built-in negative electrode of process unit and anode draw-in groove successively；
C, will uniformly be delivered in the process unit by the soil to be repaired of preliminary treatment, each negative electrode 1 connected with parallel way, anode 2 will be connected with constant voltage dc source 4 using wire 7, voltage gradient will be 10 ~ 20V/m in control system；
D, during the reparation not timing ensure soil always in acidity toward adding diluted acid in soil, and note maintaining soil moisture content more than 25%；
After E, end to be repaired, liming adjusts soil pH to neutrality.
Step C is further included：After after field operation about 30min, dosing pump 5 is opened toward being added dropwise over the H that concentration is 50% on all negative electrodes 12O2Water, to ensure the Fe nearby of negative electrode 12+Be enriched to after finite concentration again with additional H2O2Generation Fenton oxidation.
Step C also includes：Temperature controller 6 is connected with constant voltage dc source 4, power supply is automatically cut off when temperature is more than 60 DEG C in the process unit.
Using process unit of the invention and its method, soil extract pH is uniformly filled in the process unit of Electro-Fenton process reparation PAHs contaminated soils of the present invention between 3 ~ 6 acid soil, apply low-voltage dc voltage between yin, yang electrode, make the Fe in contaminated soil3+、Fe2+In the presence of the electric field by soil particle surface or internal migration to the soil liquid in, and be enriched near negative electrode, in cathode surface Fe3+It is reduced to Fe2+, with additional H2O2Form Fenton reagent and produce substantial amounts of hydroxyl radical free radical（·OH）Oxidative degradation PAHs, so as to realize the purpose of soil remediation.In addition, the Fe that fenton-type reagent is produced3+Fe can be reduced in negative electrode2+Again catalytic action is played, Fe in device is effectively realized2+Recycle；The factor of degraded PAHs is participated in soil in addition to there are OH indirect oxidations, also anodic oxidation, free-radical oxidation, Electro Sorb effect can effectively improve the treatment effeciency to PAHs in soil.Simultaneously because yin, yang electrode connection mode is parallel connection, so design can increase number of electrodes in the confined space, so that the treatment effect of intensifier.
The present invention can make intrinsic ferro element in soil that electrochemical reaction to occur to be converted into Fe using electric field action2+, with reference to additional H2O2Fenton reagent is formed, while Fe3+Fe can be reduced in negative electrode2+Again catalytic action is played, Fe in device is effectively realized2+Recycle, processing cost is saved to a certain extent.Meanwhile, the factor of degraded PAHs is participated in soil in addition to there are OH indirect oxidations, also anodic oxidation, free-radical oxidation, Electro Sorb effect can effectively improve the treatment effeciency to PAHs in soil.
Brief description of the drawings
Fig. 1 repairs the process unit schematic diagram of PAHs contaminated soils for the Electro-Fenton process of the embodiment of the present invention.
【Primary clustering symbol description】
1：Negative electrode
2：Anode
3：External hydrogen peroxide（H2O2）Storage tank
4：Constant voltage dc source
5：Dosing pump
6：Temperature controller
7：Wire
8：Shell.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiments of the invention to Electro-Fenton process of the invention repair PAHs contaminated soils process unit be described in further detail.
Fig. 1 repairs the process unit schematic diagram of PAHs contaminated soils for the Electro-Fenton process of the embodiment of the present invention.As shown in figure 1, described electric Fenton（Fenton）Method repairs the process unit of PAHs contaminated soils, mainly includes：Negative electrode 1, the anode 2 being disposed vertically in cathode and anode draw-in groove, external hydrogen peroxide（H2O2）Storage tank 3, constant voltage dc source 4, dosing pump 5, temperature controller 6 and shell 8.The negative electrode 1 and anode 2, are connected by wire 7 with the constant voltage dc source 4 in parallel respectively.
The visual treatment scale of quantity of negative electrode 1, anode 2 in the process unit, device volume and rating of set are adjusted.The external H2O2The hydrogen peroxide stored in storage tank 3（H2O2）It is added dropwise in the chemical feed pipe connected with negative electrode 1 by dosing pump 5.The temperature controller 6 is connected with constant voltage dc source 4.
The a number of negative electrode draw-in groove and anode draw-in groove that the shell 8 of the process unit is placed are parallel to each other and are disposed vertically, pH to acidity must be adjusted before pending soil treatment, vertical laying and fixed activated carbon fiber material is used as electrode material in the cathode and anode draw-in groove, the cathode activity Carbon fibe material electrodes and external H2O2Storage tank 3 is connected by chemical feed pipe with dosing pump 5, the negative electrode 1 is in the outside of anode 2, whole negative electrodes 1, the connected mode of anode 2 are parallel connection, and described all the moon 1, anode 2 is connected by wire 7 with constant voltage dc source 4 respectively, and the temperature controller 6 is connected with constant voltage dc source 4.
Wherein, the cathode material and H2O2The dosing pump 5 set between storage tank 3, preferably peristaltic pump.
The shell 8 of the process unit is acidproof, alkaline-resisting, electrically non-conductive material, preferably polypropylene material.
The activated carbon fiber material is activated carbon felt, and thickness is 3mm ~ 10mm.
The pending soil adjusts soil extract pH to 3 ~ 6 with diluted acid.
Distance is 2cm ~ 10cm between the negative electrode 1, anode 2.The control of service voltage gradient is between 10 ~ 20V/m between the cathode and anode.
The H2O2Using industrial H2O2（50%）, ratio is added for 4 ~ 12Kg/m3, the parameter adjusts depending on PAHs change in concentration in soil iron-holder and soil.
The temperature controller 6, controls the temperature in the process unit to automatically cut off power supply when being more than 60 DEG C.
When the process unit for repairing PAHs contaminated soils in Electro-Fenton process described in practical application carries out soil remediation, following steps need to be taken：
First, treat rehabilitating soil to be sieved, to remove the rubbish such as stone therein and plastic products, then the acid-base property and humidity according to soil add diluted acid to adjust soil extract pH to 3 ~ 6, and soil of constantly stirring makes it fully mix.
Secondly, it is necessary to be installed to electrode, successively negative electrode 1, anode 2（It is Activated Carbon Fiber Electrodes）It is parallel to each other and is perpendicularly fixed in the built-in negative electrode of process unit and anode draw-in groove.
Third, will uniformly be delivered in the process unit by the soil to be repaired of preliminary treatment, each negative electrode 1 connected with parallel way, anode 2 are connected with constant voltage dc source 4 using wire 7, voltage gradient is 10 ~ 20V/m in control system.After after field operation about 30min, dosing pump 5 is opened toward being added dropwise over H on all cathode electrodes2O2, to ensure the Fe nearby of negative electrode 12+Be enriched to after finite concentration again with additional H2O2Generation Fenton oxidation, so, can reach the purpose not only saved medicament but also can realize PAHs in degraded soil.
It is preferred that described temperature controller 6 is connected with constant voltage dc source 4, power supply is automatically cut off when temperature is more than 60 DEG C in device, not timing is toward adding diluted acid in soil in above-mentioned repair process（Such as hydrochloric acid inorganic acid）Ensure soil always in acidity, and note maintaining soil moisture content more than 25%.
Finally, after end to be repaired, liming adjusts soil pH to neutrality.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (9)
1. a kind of Electro-Fenton process repairs the process unit of PAHs contaminated soils, it is characterised in that including：The multiple negative electrodes for being parallel to each other and being disposed vertically（1）And anode（2）, external oxydol H2O2Storage tank（3）, constant voltage dc source（4）And shell（8）；Wherein：
The multiple negative electrode（1）To be connected in parallel, the anode（2）To be connected in parallel, and by wire（7）With the constant voltage dc source（4）It is connected；The negative electrode（1）And anode（2）To be perpendicularly fixed at the activated carbon fiber material electrode in draw-in groove, the negative electrode（1）Activated carbon fiber material electrode and external H2O2Storage tank（3）Between be connected with chemical feed pipe.
2. Electro-Fenton process according to claim 1 repairs the process unit of PAHs contaminated soils, it is characterised in that the negative electrode（1）Activated carbon fiber material electrode and external H2O2Storage tank（3）Between connect chemical feed pipe on be provided with dosing pump（5）.
3. Electro-Fenton process according to claim 1 repairs the process unit of PAHs contaminated soils, it is characterised in that the shell of the process unit（8）Inside it is provided with and the constant voltage dc source（4）Connected temperature controller（6）.
4. Electro-Fenton process according to claim 1 and 2 repairs the process unit of PAHs contaminated soils, it is characterised in that the negative electrode（1）It is distributed in the multiple negative electrode（1）And anode（2）Outermost layer, and each negative electrode（1）On be equipped with independent chemical feed pipe, the chemical feed pipe and dosing pump（5）It is connected.
5. Electro-Fenton process according to claim 1 repairs the process unit of PAHs contaminated soils, it is characterised in that described shell（8）It is acidproof, alkaline-resisting and electrically non-conductive material.
6. Electro-Fenton process according to claim 3 repairs the process unit of PAHs contaminated soils, it is characterised in that described and constant voltage dc source（4）Connected temperature controller（6）, power supply is automatically cut off when temperature is more than 60 DEG C in the process unit.
7. a kind of method that Electro-Fenton process repairs PAHs contaminated soils, it is characterised in that the method includes：
A, treat rehabilitating soil and sieved, remove stone therein and plastic products rubbish, then the acid-base property and humidity according to soil add diluted acid to adjust soil extract pH to 3 ~ 6, and soil of constantly stirring makes it fully mix；
B, electrode is installed, successively by negative electrode（1）, anode（2）It is parallel to each other and is perpendicularly fixed in the built-in negative electrode of process unit and anode draw-in groove；
C, will uniformly be delivered in the process unit, using wire by the soil to be repaired of preliminary treatment（7）Each negative electrode that will be connected with parallel way（1）, anode（2）And constant voltage dc source（4）Connection, voltage gradient is 10 ~ 20V/m in control system；
D, during the reparation not timing ensure soil always in acidity toward adding diluted acid in soil, and note maintaining soil moisture content more than 25%；
After E, end to be repaired, liming adjusts soil pH to neutrality.
8. the method that Electro-Fenton process repairs PAHs contaminated soils according to claim 7, it is characterised in that step C is further included：
After after field operation about 30min, dosing pump is opened（5）Toward all negative electrodes（1）On be added dropwise over the H that concentration is 50%2O2Water, to ensure negative electrode（1）Neighbouring Fe2+Be enriched to after finite concentration again with additional H2O2Generation Fenton oxidation.
9. the method that Electro-Fenton process repairs PAHs contaminated soils according to claim 7, it is characterised in that step C also includes：By temperature controller（6）With constant voltage dc source（4）It is connected, power supply is automatically cut off when temperature is more than 60 DEG C in the process unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010965.XA CN106925607A (en) | 2015-12-30 | 2015-12-30 | Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010965.XA CN106925607A (en) | 2015-12-30 | 2015-12-30 | Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106925607A true CN106925607A (en) | 2017-07-07 |
Family
ID=59458684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511010965.XA Pending CN106925607A (en) | 2015-12-30 | 2015-12-30 | Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106925607A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570532A (en) * | 2017-10-17 | 2018-01-12 | 陆隽鹤 | A kind of method of electronic diffusion electrical heating coupling rehabilitating soil organic contamination |
| CN110721993A (en) * | 2019-10-22 | 2020-01-24 | 广西博世科环保科技股份有限公司 | Device and method for treating polychlorinated biphenyl polluted soil through electro-Fenton oxidation |
| CN112170471A (en) * | 2020-08-27 | 2021-01-05 | 浙江建禾土壤修复设计研究有限公司 | In-situ thermal desorption method and in-situ thermal desorption system for contaminated soil |
| CN113828631A (en) * | 2021-10-22 | 2021-12-24 | 南开大学 | Device and method for treating pesticide-polluted soil in ex-situ manner by electro-catalytic Fenton oxidation |
| CN114101313A (en) * | 2021-11-23 | 2022-03-01 | 北控水务(中国)投资有限公司 | Device for repairing soil polluted by refractory organic matters through double-cathode electro-Fenton oxidation |
| CN114378112A (en) * | 2022-01-12 | 2022-04-22 | 江苏大地益源环境修复有限公司 | In-situ electric Fenton system and method for repairing organic matters in soil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861090A (en) * | 1996-01-30 | 1999-01-19 | Electrochemical Design Associates, Inc. | In situ electrochemical remediation of organically contaminated soil, sediments and ground water using electrochemically generated and delivered Fenton's Reagent |
| KR20030072053A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | system of Electrokinetic soil remediation |
| KR100414771B1 (en) * | 2003-07-14 | 2004-01-13 | 한국환경기술(주) | Chemical oxidation method of petroleum-contaminated soil using electro-osmosis and apparatus thereof |
| WO2011109342A1 (en) * | 2010-03-01 | 2011-09-09 | Mwh Americas, Inc. | Methods and systems for electrochemically induced reduction of contaminants in groundwater, soils and low permeability media |
| CN103316908A (en) * | 2013-07-05 | 2013-09-25 | 华北电力大学 | Device and method for restoring soil polluted by polychlorinated biphenyl |
| CN204338567U (en) * | 2014-11-13 | 2015-05-20 | 江阴市华宏盈飞电渗科技有限公司 | Based on the electric osmose system of the electro reclamation heavy-metal contaminated soil of plastic electrode |
| CN104722572A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Method for repairing soil polluted by PAHs (polycyclic aromatic hydrocarbons) |
-
2015
- 2015-12-30 CN CN201511010965.XA patent/CN106925607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861090A (en) * | 1996-01-30 | 1999-01-19 | Electrochemical Design Associates, Inc. | In situ electrochemical remediation of organically contaminated soil, sediments and ground water using electrochemically generated and delivered Fenton's Reagent |
| KR20030072053A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | system of Electrokinetic soil remediation |
| KR100414771B1 (en) * | 2003-07-14 | 2004-01-13 | 한국환경기술(주) | Chemical oxidation method of petroleum-contaminated soil using electro-osmosis and apparatus thereof |
| WO2011109342A1 (en) * | 2010-03-01 | 2011-09-09 | Mwh Americas, Inc. | Methods and systems for electrochemically induced reduction of contaminants in groundwater, soils and low permeability media |
| CN103316908A (en) * | 2013-07-05 | 2013-09-25 | 华北电力大学 | Device and method for restoring soil polluted by polychlorinated biphenyl |
| CN204338567U (en) * | 2014-11-13 | 2015-05-20 | 江阴市华宏盈飞电渗科技有限公司 | Based on the electric osmose system of the electro reclamation heavy-metal contaminated soil of plastic electrode |
| CN104722572A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Method for repairing soil polluted by PAHs (polycyclic aromatic hydrocarbons) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570532A (en) * | 2017-10-17 | 2018-01-12 | 陆隽鹤 | A kind of method of electronic diffusion electrical heating coupling rehabilitating soil organic contamination |
| CN110721993A (en) * | 2019-10-22 | 2020-01-24 | 广西博世科环保科技股份有限公司 | Device and method for treating polychlorinated biphenyl polluted soil through electro-Fenton oxidation |
| CN112170471A (en) * | 2020-08-27 | 2021-01-05 | 浙江建禾土壤修复设计研究有限公司 | In-situ thermal desorption method and in-situ thermal desorption system for contaminated soil |
| CN113828631A (en) * | 2021-10-22 | 2021-12-24 | 南开大学 | Device and method for treating pesticide-polluted soil in ex-situ manner by electro-catalytic Fenton oxidation |
| CN114101313A (en) * | 2021-11-23 | 2022-03-01 | 北控水务(中国)投资有限公司 | Device for repairing soil polluted by refractory organic matters through double-cathode electro-Fenton oxidation |
| CN114378112A (en) * | 2022-01-12 | 2022-04-22 | 江苏大地益源环境修复有限公司 | In-situ electric Fenton system and method for repairing organic matters in soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106925607A (en) | Electro-Fenton process repairs the process unit and its method of PAHs contaminated soils | |
| CN103316908B (en) | Device and method for restoring soil polluted by polychlorinated biphenyl | |
| Zhang et al. | Microbial fuel cells as pollutant treatment units: research updates | |
| Huang et al. | Electrokinetic remediation and its combined technologies for removal of organic pollutants from contaminated soils | |
| CN102976472B (en) | Groundwater remediation method by Electro-Fenton reaction using iron cathode | |
| CN103286119A (en) | Device and method for restoring chlorobenzene-type organism polluted soil and underground water | |
| CN105312314A (en) | Repairing system and method for heavy metal-organic combined polluted soil and underground water | |
| CN112547782B (en) | Low-energy-consumption soil organic pollutant in-situ treatment method and system | |
| CN104690084A (en) | Electrochemical and microbial synergetic restoration integrated equipment for organic contaminated soil and restoration method thereof | |
| CN102941217A (en) | Electric power repairing device and method for cylindrical arrangement electrode | |
| CN109848201B (en) | Electric power driving and electrothermal activation oxidation/reduction repair method | |
| CN106140809A (en) | A kind of apparatus and method using combination electrode repairing polluted soil and subsoil water | |
| CN104324937B (en) | A kind of non uniform electrokinetics-persulfate oxidation coupling method repairs the method for dichloro-benzenes contaminated soil environment | |
| CN110918629B (en) | Device for in-situ remediation of organic contaminated site by solubilizing and strengthening thermal desorption | |
| CN211100764U (en) | Resistance heating thermal desorption device for repairing polluted soil and underground water | |
| US20190119133A1 (en) | Method and Systems for Advanced Bioelectrochemical Treatment of Pollutants | |
| CN104926066B (en) | It is a kind of that innoxious and deep dehydration the method for heavy metal is realized simultaneously to dewatered sludge | |
| CN108640255B (en) | Method for treating typical aromatic wastewater and synchronously generating electricity by carbon black hydroxyl ferric oxide cathode bioelectricity Fenton | |
| CN105537261B (en) | A kind of restorative procedure of electric power-fuel cell coupling device and contaminated soil | |
| CN103253821B (en) | Rotating disc type activated carbon bed and low-temperature plasma integrated waste water treatment facility | |
| CN107350282A (en) | The method of discharge plasma activation persulfate collaboration renovation of organic pollution soil | |
| Yang et al. | Electrosorption driven by microbial fuel cells without electric grid energy consumption for simultaneous phenol removal and wastewater treatment | |
| CN105776430B (en) | Electrocatalysis oxidation apparatus and method for sewage treatment | |
| CN103302091B (en) | Sequencing-batch polluted soil remediation method and device | |
| CN110148771A (en) | A kind of appositional pattern microbiological fuel cell for oil-sludge treatment |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |