CN112872015B - Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide - Google Patents
Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide Download PDFInfo
- Publication number
- CN112872015B CN112872015B CN202110031821.1A CN202110031821A CN112872015B CN 112872015 B CN112872015 B CN 112872015B CN 202110031821 A CN202110031821 A CN 202110031821A CN 112872015 B CN112872015 B CN 112872015B
- Authority
- CN
- China
- Prior art keywords
- phthalate
- soil
- aqueous solution
- hydrogen peroxide
- bicarbonate
- 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.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 55
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000007864 aqueous solution Substances 0.000 claims abstract description 15
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims abstract description 13
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims abstract description 11
- -1 phthalate ester Chemical class 0.000 claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005067 remediation Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 230000008439 repair process Effects 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000005518 electrochemistry Effects 0.000 abstract description 2
- 230000001404 mediated effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 235000013311 vegetables Nutrition 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 4
- 229960001826 dimethylphthalate Drugs 0.000 description 4
- 238000004811 liquid chromatography Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 206010064571 Gene mutation Diseases 0.000 description 1
- 240000004658 Medicago sativa Species 0.000 description 1
- 235000017587 Medicago sativa ssp. sativa Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009982 effect on human Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical class [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
Images
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
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a method for restoring and treating phthalate ester contaminated soil by pulse electrochemical hydrogen peroxide generation, and belongs to the technical field of soil restoration. The method specifically comprises the following steps: the method comprises the steps of crushing the phthalate polluted soil, adding the crushed phthalate polluted soil into an aqueous solution containing bicarbonate radical, uniformly mixing, inserting two carbon electrodes, and applying square-wave pulse voltage to the two carbon electrodes to carry out electrochemical restoration treatment. According to the method, air does not need to be introduced into the soil, a reaction electrode does not need to be replaced regularly, dissolved bicarbonate in the soil is activated through electrochemistry, water is mediated to be oxidized into hydrogen peroxide, and therefore the phthalate polluted soil is continuously and efficiently repaired and treated.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to a method for remediating phthalate-contaminated soil by pulse electrochemical generation of hydrogen peroxide.
Background
Phthalate compounds are important chemical raw materials and are widely used in the fields of plasticizers, pesticide carriers and the like. At the initial stage of the application of phthalate compounds, scholars at home and abroad mostly consider that the phthalate compounds have low toxicity and no side effect on human health and ecological environment, so the phthalate compounds are widely produced and applied. Since 2000, a number of studies have found that: various phthalates (e.g., diisononyl phthalate, di-n-butyl phthalate, dimethyl phthalate, etc.) enriched in animals have a risk of causing gene mutation, tissue carcinogenesis and teratogenicity. Unfortunately, agricultural mulching films used in large quantities in early stages of China contain phthalate components, which cause large-area agricultural soil pollution. Because the phthalic acid ester in the soil is difficult to biodegrade, the effective remediation treatment is urgently needed for the soil pollution caused by the phthalic acid ester.
At present, the main methods for remedying the phthalate ester contaminated soil are phytoremediation (such as alfalfa planting remediation), microbial remediation (such as yeast degradation remediation), chemical oxidation remediation (such as activated persulfate oxidation remediation, photocatalytic oxidation degradation remediation and the like), and physical adsorption remediation (such as charcoal adsorption remediation). The above methods have different repairing principles, and have long and insufficient effects. For example, phytoremediation methods are simple to operate, but the planting period is long, which affects normal agricultural production; the microorganism remediation method has good selectivity, but the cost for culturing microorganisms is high, and the requirements on soil temperature, humidity, components and the like are strict; the chemical oxidation repairing method needs to add an oxidant, has higher cost and is easy to introduce new pollutants; the physical adsorption repair method has the disadvantages of slow speed and limited effect. Therefore, it is very necessary to develop a new method for the remediation of phthalate-contaminated soil.
The electro-Fenton oxidation method is an advanced oxidation technology for effectively degrading organic pollutants, and the general working principle of the electro-Fenton oxidation method is that: first, oxygen is reduced to hydrogen peroxide at the cathode of the cell and an iron-containing anode is electrolyzed to produce ferrous iron (Fe)2+) (ii) a Then, hydrogen peroxide and Fe2+The reaction is carried out to generate a large amount of high-activity substances such as hydroxyl free radicals, superoxide radicals and the like; finally, the organic pollutants react with the high-activity free radicals and are gradually degraded and mineralized. It is worth noting that the electro-Fenton oxidation technology is mainly used for degradation of organic pollutants in acidic aqueous solution, and requires continuous air introduction and periodic anode replacement to maintain the reaction. As is known, soil is solid with clay mineral as main component and has limited water content and gas permeability, so that the traditional electro-fenton technology has unsatisfactory effect in treating soil polluted by organic matters.
Disclosure of Invention
In view of the above, the present invention aims to provide a method for repairing and treating phthalate ester contaminated soil by pulse electrochemical generation of hydrogen peroxide.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for restoring and treating phthalate ester contaminated soil by pulse electrochemical hydrogen peroxide generation comprises the following steps:
adding the aqueous solution containing bicarbonate radical into the crushed phthalate polluted soil, uniformly mixing, inserting the mixture into two carbon electrodes, and then applying square wave pulse voltage to the two carbon electrodes to carry out electrochemical repair treatment.
Preferably, the mass ratio of the bicarbonate-containing aqueous solution to the phthalate-contaminated soil is 1:10-100, and the concentration of the bicarbonate in the bicarbonate-containing aqueous solution is 0.1-0.3M.
Preferably, the aqueous solution containing bicarbonate is NaHCO3Aqueous solution or KHCO3An aqueous solution.
Preferably, the carbon electrode is made of graphite or carbon cloth.
Preferably, the carbon electrode has the following dimensions: 30-40cm × 10-15cm × 0.2-2cm, length × width × thickness.
Preferably, the distance between the two carbon electrodes is 10-100 cm.
Preferably, the square wave pulse voltage is +/-5.0V to +/-15.0V, and the pulse width is 10-60 s.
Preferably, the time of the electrochemical remediation treatment is determined by the quality of the phthalate-contaminated soil.
The main principle and basis of the invention are as follows: bicarbonate radical (HCO) in solution in the soil3 -) Can be oxidized to bicarbonate (HCO) at the anode of the electrolytic cell4 -) I.e. HCO3 --2e-+H2O→HCO4 -+2H+,E⊙R.he. 1.80vvs. Due to HCO4 -Strongly oxidizing, which can mediate the oxidation of water to produce hydrogen peroxide, i.e., HCO4 -+H2O→H2O2+HCO3 -. Because the soil contains Fe2+Plasma of metal ions, H produced by the above process2O2With Fe2+The reaction is carried out to generate a large amount of OH (hydroxyl radical) and O2-(oxyanion free radical) and the like, thereby degrading and mineralizing the dissolved phthalate in the soil (see figure 1).
The invention has the beneficial effects that: the invention provides a method for restoring and treating phthalate polluted soil by pulse electrochemical hydrogen peroxide generation, which is characterized in that air is not required to be introduced into the soil, a reaction electrode is not required to be replaced regularly, and dissolved bicarbonate in the soil is activated by electrochemistry mainly mediating water to be oxidized and converted into hydrogen peroxide, so that the phthalate polluted soil is restored and treated continuously and efficiently. In addition, in the treatment process, the two electrodes in the electrolytic cell respectively play an anode role in different time periods by applying regularly changed square wave pulse voltage on the electrodes, and hydrogen peroxide can be generated at the two ends of the electrolytic cell, so that the problem of low efficiency in electrochemical degradation at the anode fixing end of the electrolytic cell due to low concentration of phthalate in soil is solved. Due to HCO in the whole reaction process3 -The cyclic reaction can generate hydrogen peroxide continuously through water oxidation without air, thereby the method is usedThe method has the characteristics of simplicity, convenience, greenness and high efficiency when used for repairing and treating the phthalate polluted soil.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the principle of remediation of phthalate-contaminated soil by pulsed electrochemical generation of hydrogen peroxide according to the present invention;
FIG. 2 is a comparative liquid chromatography chart of di-n-butyl phthalate in soil leacheate of paddy field before and after 4h of treatment in example 1;
FIG. 3 is a graph of a square wave pulse voltage signal applied in example 2;
FIG. 4 is a comparative liquid chromatogram of dimethyl phthalate in soil leacheate for vegetable farm land before and after 2.5h of treatment in example 2;
FIG. 5 is a graph showing the change of the concentration of diisononyl phthalate and the degradation rate with electrolysis time in the soil of a paddy field treated in example 3.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1
1.5L of 0.5M NaHCO3Adding 20kg of the aqueous solution, pulverizingThe Chongqing rice farmland soil polluted by di-n-butyl phthalate is uniformly mixed, two graphite plates with the size of 30 (length) cm multiplied by 15 (width) cm multiplied by 1 (thickness) cm are inserted as electrodes, the distance between the two electrodes is 30cm, square wave pulse voltage of +/-6.0V is applied to the two electrodes, the pulse width is 20s, and electrochemical restoration treatment is carried out for 4 h.
And (3) leaching the treated paddy field soil with water, collecting leacheate, filtering, performing liquid chromatography, and comparing the paddy field soil before treatment with the reference paddy field soil, wherein the result is shown in figure 2, and data before and after comparison treatment show that 95% of di-n-butyl phthalate in the paddy field soil is degraded and mineralized.
Example 2
Adding 1.0L KHCO with concentration of 1.0M3Adding 15kg of crushed water solution into vegetable field soil polluted by dimethyl phthalate in Chongqing land, uniformly mixing, burying two carbon cloths with the size of 30 (length) cm multiplied by 10 (width) cm multiplied by 0.2 (thickness) cm as electrodes, wherein the distance between the two electrodes is 20cm, applying square wave pulse voltage of +/-8.0V on the two electrodes, wherein the pulse width is 10s (shown in figure 3), and carrying out electrochemical repair treatment for 2.5 h.
And (3) leaching the treated vegetable field soil with water, collecting leacheate, filtering, performing liquid chromatography, and comparing the vegetable field soil before treatment with the vegetable field soil before treatment, wherein the result is shown in figure 4, and data before and after comparison treatment show that 90% of dimethyl phthalate in the vegetable field soil is degraded and mineralized.
Example 3
2.0L of 1.5M NaHCO3Adding 30kg of crushed Chongqing rice farmland soil polluted by diisononyl phthalate into 30kg of crushed Chongqing rice farmland soil, uniformly mixing, inserting two graphite plates with the size of 40 (length) cm multiplied by 15 (width) cm multiplied by 2 (thickness) cm as electrodes, wherein the distance between the two electrodes is 35cm, then applying square wave pulse voltage of +/-10.0V on the two electrodes, wherein the pulse width is 40s, and carrying out electrochemical repair treatment for 5 h. Wherein, the change rule of the concentration and the degradation rate of the diisononyl phthalate in the paddy farmland soil along with the electrolysis time is shown in figure 5, and as can be seen from figure 5, the concentration of the diisononyl phthalate gradually increases along with the reaction timeAnd decreases.
And (3) leaching the treated paddy field soil with water, collecting leacheate, filtering, performing liquid chromatography, and comparing data before and after treatment by using the paddy field soil before treatment as a reference to find that 92% of diisononyl phthalate in the paddy field soil is degraded and mineralized.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (8)
1. A method for restoring and treating phthalate ester contaminated soil by pulse electrochemical hydrogen peroxide generation is characterized by comprising the following steps:
adding the aqueous solution containing bicarbonate radical into the crushed phthalate polluted soil, uniformly mixing, inserting the mixture into two carbon electrodes, and then applying square wave pulse voltage to the two carbon electrodes to carry out electrochemical repair treatment.
2. The method according to claim 1, wherein the mass ratio of the bicarbonate containing aqueous solution to the phthalate-contaminated soil is 1:10 to 100, and the concentration of the bicarbonate in the bicarbonate containing aqueous solution is 0.1 to 0.3M.
3. The method of claim 2, wherein the aqueous solution containing bicarbonate is NaHCO3Aqueous solution or KHCO3An aqueous solution.
4. The method of claim 1 wherein the carbon electrode is graphite or carbon cloth.
5. The method of claim 1 wherein the carbon electrode has dimensions of: 30-40cm × 10-15cm × 0.2-2cm, length × width × thickness.
6. The method of claim 1 wherein the two carbon electrodes are spaced apart by 10-100 cm.
7. The method of claim 1, wherein the square wave pulse voltage is ± 5.0V to ± 15.0V, and the pulse width is 10-60 s.
8. The method of claim 1, wherein the time of the electrochemical remediation process is based on the quality of the phthalate-contaminated soil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110031821.1A CN112872015B (en) | 2021-01-11 | 2021-01-11 | Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110031821.1A CN112872015B (en) | 2021-01-11 | 2021-01-11 | Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112872015A CN112872015A (en) | 2021-06-01 |
CN112872015B true CN112872015B (en) | 2022-06-24 |
Family
ID=76044073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110031821.1A Active CN112872015B (en) | 2021-01-11 | 2021-01-11 | Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112872015B (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103316908B (en) * | 2013-07-05 | 2015-02-25 | 华北电力大学 | Device and method for restoring soil polluted by polychlorinated biphenyl |
CN105457996B (en) * | 2015-12-18 | 2018-04-06 | 广东工业大学 | A kind of method of microwave cooperating SODIUM PERCARBONATE renovation of organic pollution place soil |
CN105817474B (en) * | 2016-03-21 | 2019-04-09 | 玉溪师范学院 | A device, method and application for remediating soil composite pollution |
-
2021
- 2021-01-11 CN CN202110031821.1A patent/CN112872015B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN112872015A (en) | 2021-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103316908B (en) | Device and method for restoring soil polluted by polychlorinated biphenyl | |
Wu et al. | A novel integrated system of three-dimensional electrochemical reactors (3DERs) and three-dimensional biofilm electrode reactors (3DBERs) for coking wastewater treatment | |
CN106734158B (en) | A method and device for micro-electric field stimulation coupled with cathodic anaerobic/anodic aerobic removal of polychlorinated biphenyls in sediment | |
CN1151084C (en) | 3D Electrode Reactor | |
Chu et al. | Anodic oxidation process for the degradation of 2, 4-dichlorophenol in aqueous solution and the enhancement of biodegradability | |
CN103318990A (en) | Method for removing organic pollutants in water through electrochemical cathode catalytic ozonation | |
CN106495369B (en) | Method and device for treating organic wastewater by electro-Fenton method | |
CN105084554B (en) | The minimizing technology of Microcystin in water | |
Zhang et al. | Cathodes of membrane and packed manganese dioxide/titanium dioxide/graphitic carbon nitride/granular activated carbon promoted treatment of coking wastewater in microbial fuel cell | |
CN205659980U (en) | Joint fenton oxidation strengthening biological of electric power migration restores reactor that phenol pollutes soil | |
JP6327718B2 (en) | Microbial electrolysis cell | |
CN109502932B (en) | A chlorinated hydrocarbon polluted groundwater treatment device and remediation method based on microbial degradation coupled electrochemical method | |
Dai et al. | A vertically configured photocatalytic-microbial fuel cell for electricity generation and gaseous toluene degradation | |
Ambaye et al. | Insights into rhamnolipid amendment towards enhancing microbial electrochemical treatment of petroleum hydrocarbon contaminated soil | |
Su et al. | Ameliorating substance accessibility for microorganisms to amplify toluene degradation and power generation of microbial fuel cell by using activated carbon anode | |
CN110282839A (en) | The method for realizing halogenated organic pollutant dehalogenation in bed mud is coupled using microorganism electrochemical | |
CN113149342B (en) | Device and method for efficient degradation of bisphenol A by light-coupled electroactive biofilm | |
Li et al. | Advanced degradation of refractory organic compounds in electroplating wastewater by an in-situ electro-catalytic biological coupling reactor: Removal performance, microbial community and possible mechanism | |
Lin et al. | Performance of bioelectrochemical systems in treating exhaust gas with power generation: effects of shock-load, shut-down episodes and microbial community | |
Wu et al. | Enhanced nitrogen and phosphorus removal by a novel ecological floating bed integrated with three-dimensional biofilm electrode system | |
NL2029145B1 (en) | Aquatic plant-microbial electrochemical remediation system and application thereof and method for treating organic polluted water | |
CN112872015B (en) | Method for restoring and treating phthalate-polluted soil by pulse electrochemical production of hydrogen peroxide | |
CN107954504B (en) | The technique for removing bisphenol-A in drinking water | |
CN216946381U (en) | A bioelectrochemical reactor for in-situ remediation of halogenated organic pollutants in water | |
Chaijak et al. | Power recovery and sulfate removal from rubber wastewater with the novel model multi-electrode microbial fuel cell |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |