CN105149336A - Method and device for remediating soil - Google Patents
Method and device for remediating soil Download PDFInfo
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- CN105149336A CN105149336A CN201510634000.1A CN201510634000A CN105149336A CN 105149336 A CN105149336 A CN 105149336A CN 201510634000 A CN201510634000 A CN 201510634000A CN 105149336 A CN105149336 A CN 105149336A
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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
- B09C1/08—Reclamation of contaminated soil chemically
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Abstract
The invention relates to the field of soil remediation, and specifically relates to a method and device for remediating soil. The device comprises a container for storing the soil, electrodes which have two polarities and are arranged in the container, and a double-layer shielding wall which is arranged between the electrodes having polarities, wherein pollutants can flow through the double-layer shielding wall, and chemical agents can be stopped through the double-layer shielding wall. According to the device for remediating the soil, the electric remediation technology and the oxidization/ reduction technology are combined to use; an electric field is arranged on the soil which is polluted and to be treated; the pollutants are collected; chemical agents capable of degrading or passivating the pollutants are added to the soil area in which the pollutants are collected, and then the pollutants can be removed through the chemical agents under the continuous action of the electric field. According to the method, the remediation period is short; the soil can be completely remediated; in addition, few chemical agents are used, so that secondary pollution can be avoided.
Description
Technical field
The present invention relates to soil remediation field, particularly a kind of soil remediation method and soil remediation equipment.
Background technology
Along with industry restructuring and modern urbanization process, be positioned at the chemical plant in urban district, oil plant, pharmaceutical factory and other factories and move suburb, due to long-term solid waste pile up, discharge of wastewater and atmosphere dried wet deposition etc. to leave over the organic or heavy metal pollution place of lower industry in a large number and soil in genuine area.In place, pollutant composition is complicated, contaminative is strong, concentration is high, potential pollution sources, and the stronger intermediate product of some toxicity can be produced in the environment, if can not get timely process for a long time, can to Soil Surrounding and surface water even underground water pollute, also by drinking water or by soil-plant system, enter human body via food chain, jeopardize ecological safety and population health.Therefore, reparation that is organic or heavy metal pollution place is extremely urgent.
At present, contaminated site and soil restoring technology comprise physics, chemistry and the various ways such as biological prosthetic.But, existing most of restorative procedure and equipment because of the high range of application that causes of its cost narrow, the needs of a large amount of heavily contaminated site remediation can not be met.
Wherein, electric repairing technique is considered to the effective technology solving soil pollution, and its general principle is that the various electrokinesises utilizing electric field to produce strengthen the bioavailability of pollutant in underground environment, the activity of microorganism or direct mineralising organic matter.Because this technology have simple to operate, removal efficiency is high, can in-situ immobilization, the features such as little are destroyed to soil environment, receive the extensive concern of domestic and international soil remediation expert, but it is in repair process, the problem of anode acidifying can be produced, cause the unbalanced of soil pH value, larger on edaphon impact, and conventional electric recovery technique adopts directed electric field operational mode, and electric field effective rate of utilization is lower, affects its practical application.
Oxidation/reduction technology is a kind of soil remediation chemical technology of maturation, by adding oxidant or reducing agent to contaminated soil, utilizing oxidation or reduction reaction, making the contamination transform in soil be nontoxic or that relative toxicity is less material.Common oxidant comprises permanganate, hydrogen peroxide, Fenton reagent, persulfate and ozone.Common reducing agent comprises sodium dithionite, sodium hydrogensulfite, ferrous sulfate, calcium polysulfide, ferrous iron, Zero-valent Iron etc.Wherein, chemical oxidation can process most of organic matters such as petroleum hydrocarbon, BTEX (benzene, toluene, ethylbenzene, dimethylbenzene), phenols, MTBE (methyl tertiary butyl ether(MTBE)), chloro-carbon solvent, polycyclic aromatic hydrocarbon, agricultural chemicals; Electronation can process heavy metal class (as Cr VI) and chlorinatedorganic etc.For Fenton reagent process organic polluted soil, Fenton reagent is swift in response, and process thoroughly.But the technical bottleneck of this technology exists competition for fear of materials such as the organic matters existed in soil to hydroxyl radical free radical to consume, the time existed after hydrogen peroxide enters soil is simultaneously short, consumption is huge, if on a large scale, heavy dose of use easily causes the secondary pollution of soil.
Summary of the invention
The present invention is intended to overcome soil remediation method of the prior art, repairing efficiency is long, exist and repair not thorough or there is the situations such as secondary pollution, have impact on its practical application, there is provided a kind of repairing efficiency short, reparation is thorough and chemical reagent use amount is few, can not there is soil remediation method and the soil remediation equipment of secondary pollution.
For achieving the above object, the present invention is by the following technical solutions:
The invention provides a kind of soil remediation method, the method is included on the contaminated soil that need process and arranges electric field, by contaminants, adding at the soil region assembling pollutant can by the chemical reagent of contaminant degradation or passivation, and chemical reagent to go down depollution thing in the continuation effect of electric field.
In some embodiments, the above-mentioned method arranging electric field is included in soil center and arranges central electrode, arranges the polarity all electrode contrary with central electrode at soil periphery.
In some embodiments, between above-mentioned central electrode and all electrodes, be also provided with the double layer screen wall that negotiable pollution sources can stop again chemical reagent to circulate, for limiting the soil region assembling pollution sources.
In some embodiments, above-mentioned can be oxidant or reducing agent by the chemical reagent of contaminant degradation; Above-mentioned can be passivator by the chemical reagent of pollutant passivation.
Present invention also offers the soil remediation equipment that a kind of above-mentioned soil remediation method is used, this equipment comprises the container that can hold soil, be arranged on the electrode of two kinds of polarity in container, the double layer screen wall that the negotiable pollution sources between the electrode being arranged on two kinds of polarity can stop again chemical reagent to circulate.
In some embodiments, the electrode of above-mentioned two kinds of polarity comprises the central electrode being arranged on container center, at all electrodes that the polarity of container inner wall periphery setting is contrary with central electrode; Double layer screen wall comprises the external shield wall relative with all electrodes, the inner shield wall relative with central electrode, and described external shield wall and inner shield wall can relatively rotate; External shield wall and inner shield wall are provided with the opening that can dock, can opening be closed by rotation external shield wall and/or inner shield wall.
In some embodiments, above-mentioned central electrode and all electrodes are bar electrode, and wherein, central electrode is one, and all electrodes are multiple, and are uniformly distributed along container inner wall periphery.
In some embodiments, the aperture of above-mentioned opening is 0.5-2cm.
In some embodiments, above-mentioned soil remediation equipment also comprises the power supply be electrically connected with the electrode of two kinds of polarity.
In some embodiments, above-mentioned power supply can provide direct current, and galvanic voltage is not higher than 60V.
In some embodiments, be also provided with electrode controller between the electrode of above-mentioned two kinds of polarity and power supply, described electrode controller comprises the time controller of the breaker of the dipole inversion of energy control electrode and the conversion time of energy control electrode.
In some embodiments, the inwall of above-mentioned double layer screen wall is provided with reagent and injects groove.
The present invention additionally provides the soil remediation method using above-mentioned soil remediation equipment to repair the contaminated soil that need process simultaneously.
Beneficial effect of the present invention is: the present invention is by electric repairing technique and the coupling of oxidation/reduction technology, under the condition of electro-catalysis, make the effect of chemical oxidation/reduction medicament or passivator amplify, and by electrochemical reaction, accelerate removal or the degraded of pollutant, degradation speed is fast, degraded thoroughly, is one, soil remediation field innovative technology.Particularly the present invention is by contaminants, effectively can control the scope that chemical reagent adds and the amount added, and the high concentration of pollution sources also accelerates the carrying out of reaction simultaneously, can not only reduce costs, and can ensure that soil can not be secondary polluted.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of an embodiment of soil remediation equipment provided by the invention.
Fig. 2 is the structural representation of the soil remediation equipment that Fig. 1 provides.
1. hydrostatic column; 2. double layer screen wall; 3. reagent injects groove;
4. central electrode; 5. all electrodes; 6. power supply; 7. electrode controller;
21. external shield walls; 22. inner shield walls
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " setting ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The invention provides a kind of soil remediation method, the method is included on the contaminated soil that need process and arranges electric field, by contaminants, adding at the soil region assembling pollutant can by the chemical reagent of contaminant degradation, and chemical reagent to go down depollution thing in the continuation effect of electric field.
In one embodiment of the present of invention, in order to efficient, controlled gathering pollutant, the method arranging electric field is included in soil center and arranges central electrode, at soil periphery, the polarity all electrode contrary with central electrode is set, by the centre of contaminants at soil, soil center herein refers to the approximate centre of soil section.
In one embodiment of the present of invention, prevent chemical reagent to the secondary pollution of soil in order to high-efficiency accumulation pollutant, the double layer screen wall that negotiable pollutant can stop again chemical reagent to circulate also is provided with between central electrode and all electrodes, for limiting the soil region assembling pollutant, pass through electric field action, contaminants is enclosed in the periphery of central electrode, adds chemical reagent at the soil region of this high density pollution thing closed and efficient degradation is carried out to pollutant.Distance between general double layer screen wall and central electrode is less than 3/4 of all electrodes and central electrode distance.
In one embodiment of the present of invention, can be oxidant or reducing agent by the chemical reagent of contaminant degradation, kind according to pollutant is selected, such as, when pollutant can add oxidant during oxidized degraded, oxidant can comprise permanganate, hydrogen peroxide, Fenton reagent, persulfate and ozone etc.; Can add reducing agent when pollutant can be reduced degraded, reducing agent can comprise sodium dithionite, sodium hydrogensulfite, ferrous sulfate, calcium polysulfide, ferrous iron, Zero-valent Iron etc.By electrochemical oxidation or reduction, the contamination transform in soil is made to be nontoxic or that relative toxicity is less material.Oxidant can most of organic matter such as decomposing petroleum hydrocarbon, BTEX (benzene, toluene, ethylbenzene, dimethylbenzene), phenols, MTBE (methyl tertiary butyl ether(MTBE)), chloro-carbon solvent, polycyclic aromatic hydrocarbon, agricultural chemicals; Reducing agent can be degraded heavy metal class (as Cr VI) and chlorinatedorganic etc.
In one embodiment of the present of invention, can be passivator by the chemical reagent of contaminant degradation, the kind according to pollutant be selected, and such as, passivator can be flyash, lime, hydroxyapatite or calcium dihydrogen phosphate etc.
Invention also provides a kind of soil remediation equipment, as shown in Figure 1, 2, this soil remediation equipment comprises the container 1 that can hold soil, be arranged on the electrode of two kinds of polarity in container 1, the double layer screen wall 2 that the negotiable pollutant between the electrode being arranged on two kinds of polarity can stop again chemical reagent to circulate.
In one embodiment of the present of invention, as shown in Figure 1, 2, the electrode of two kinds of polarity comprises the central electrode 4 being arranged on container center, at all electrodes 5 that the polarity of container 1 inner peripheral wall setting is contrary with central electrode, by electric field action, by the periphery of contaminants at central electrode.In the present embodiment, as shown in the figure, double layer screen wall 2 comprises the external shield wall 21 relative with all electrodes 5, the inner shield wall 22 relative with central electrode 4, and wherein, external shield wall 21 and inner shield wall 22 can relatively rotate; In the present embodiment, by on barrier shield 21 and inner shield wall 22 outside, all opening is set, by the opening docking on external shield wall 21 and inner shield wall 22, realize the circulation of pollutant, close these openings to realize by rotation external shield wall 21 and/or inner shield wall 22 and stop chemical reagent circulation, pollutant is enclosed in the periphery of central electrode to realize the closed degraded of pollutant.Wherein, in soil remediation process, be also filled with soil in double layer screen wall 2, it just realizes a contaminants soil region in whole accommodation containers of soil 1.Within double layer screen wall 2 is generally in 3/4 position of central electrode 4 apart from all electrodes 5.
General opening only need be used for the circulation of pollutant, relevant with the molecular size of the pollutant of actual treatment, and generally in order to better operation, opening is generally slightly large.Can the aperture of preferred opening be 0.5-2cm in the present embodiment.The density of opening only need realize the docking of the opening rotated on the adjustable inside and outside barrier shield of inside and outside barrier shield and close.
In one embodiment of the present of invention, as shown in Figure 1, 2, container 1 is hydrostatic column, central electrode 4 and all electrodes 5 are bar electrode, central electrode 4 is one, is positioned at the axle center of hydrostatic column. all electrodes 5 for multiple, and are uniformly distributed along container 1 inner peripheral wall, concrete, as shown in the figure, all electrodes 5 are 6, are uniformly distributed along container 1 inwall, be centered around be positioned at axle center central electrode 4 around, be energized between rear 6 all electrodes 5 and central electrode 4 and all have electric field.
In the present embodiment, bar electrode is titanium bar electrode.
When the concrete use of soil remediation equipment, when being namely used for repairing the contaminated soil that need process, need by electrifying electrodes, the electrode by two kinds of polarity is electrically connected with power supply 6, generally, arranges the polarity of electrode according to pollutant charged character under the electric field.In a particular embodiment of the present invention, be by the periphery of contaminants at central electrode 4, then generally select the polarity of central electrode 4 contrary with pollutant charged character under the electric field, such as, when pollutant is chlorophenesic acid, central electrode 4 connects anode, and all electrodes 5 connect negative electrode; When pollutant is Cr VI, central electrode 4 connects negative electrode, and all electrodes 5 connect anode.The connection of electrode and power supply 6 can adopt conventional wire, and the present invention does not limit.
The electric current of general access electrode is direct current.Can connect and directly can provide galvanic power supply 6, galvanic voltage is not higher than 60V, and galvanic voltage range is preferably greater than 0 and is less than or equal to 60V.
Also conversion control device can be set between electrode and power supply 6, such as can arrange and convert alternating current to galvanic device, in one embodiment of the invention, electrode controller 7 is also provided with between the electrode of two kinds of polarity and power supply 6, wherein, electrode controller 7 comprises the time controller of the breaker of the dipole inversion of energy control electrode and the conversion time of energy control electrode, realizes the time of the polarity according to pollutant charged property control electrode in the electric field and the control of the kind according to pollutant applying electric field.Wire all can be adopted between power supply 6, electrode controller 7 and electrode to connect.
In one embodiment of the present of invention, as shown in Figure 1, 2, the inwall of double layer screen wall 2 be also provided with reagent inject groove 3 more convenient for chemical reagent, more deep add contaminated soil, the pollutant entered in double layer screen wall 2 is moved in better degraded, and addition is controlled, reagent injects groove 3 the present invention and does not limit, and can be offer groove at the inwall of double layer screen wall 2 and the inside of inner shield wall 22 along the axial direction of container 1, the degree of depth of groove be generally not more than 0.8cm.
The present invention also can be provided with the upper cover sealed container 1 simultaneously, and shape and the vessel port of upper cover adapt to, and above covers the hole that can arrange for wearing electrode or wire.
Invention also provides the soil remediation method using above-mentioned soil remediation equipment to repair the contaminated soil that need process, after above-mentioned soil remediation equipment energising, central electrode 4 and all electrodes 5 form closed-loop path, produce electric field, utilize the migration of the electrokinesis of electric field, electrochemistry or electric catalyticing effect acceleration pollutant, removal or degraded; When contaminant transportation to double layer screen within the walls, rotate inside and outside barrier shield, form room in closing, chemical reagent is injected along reagent the contaminated soil that groove 3 injects double layer screen side within the walls, under electrochemical catalysis, electrokinesis effect, strengthen the effect of chemical reagent, accelerate removal or the degraded of pollutant.
Below two specific embodiments provided by the invention, in order to choosing of such scheme and various condition thereof to be described.
Embodiment 1
The present embodiment is selected by chlorophenesic acid contaminated soil as reparation object.
Human configuration is subject to chlorophenesic acid contaminated soil, pollutant final concentration 200mg/kg.
The chlorophenesic acid contaminated soil that is subject to of configuration is loaded in container 1, select titanium rod as electrode, be inserted in contaminated soil according to Fig. 1, according to chlorophenesic acid charged character under the electric field, central electrode 4 is set to anode in this embodiment, and all electrodes 5 are set to negative electrode, and is wired on electrode controller 7, electrode controller 7 is wired on power supply 6, builds upper cover.
Switch on power 6, form closed-loop path, carry out the electro reclamation by chlorophenesic acid contaminated soil, through the reparation of 3 days, get in double layer screen wall 2 and analyze with outer pedotheque, repair after 30 days, chlorophenesic acid 99% outside result display double layer screen wall 2 all enters in double layer screen wall 2, rotate the external shield wall 21 of double layer screen wall 2, opening is closed, inject groove 3 by reagent and inject Fenton reagent inside double layer screen wall 2, through the process of 12 hours, chlorophenesic acid recall rate was 0.
The method improves 60% than single microorganism remediation efficiency.Repair than single use Fenton reagent, obtain same remediation efficiency, the use amount of reagent reduces 30%.
Embodiment 2
The present embodiment selects hexavalent chromium polluted soil as reparation object.
Gather hexavalent chromium polluted soil at certain chromium slag muck, measuring pollution concentration in soil is 187mg/kg.
Load in container 1 by by hexavalent chromium polluted soil, select titanium rod as electrode, be inserted in contaminated soil according to Fig. 1, according to Cr VI charged character under the electric field, central electrode 4 is set to negative electrode in this embodiment, and all electrodes 5 are set to anode, and is wired on electrode controller 7, electrode controller 7 is wired on power supply 6, builds upper cover.
Switch on power 6, form closed-loop path, carry out the electro reclamation by hexavalent chromium polluted soil, through the reparation of 2 days, get in double layer screen wall 2 and analyze with outer sample, Cr VI 100% outside result display double layer screen wall 2 all enters in double layer screen wall 2, rotate the inner shield wall 22 of double layer screen wall 2, opening is closed, inject groove 3 by reagent and inject ferrous sulfate reducing agent inside double layer screen wall 2, through the process of 4 hours, monitoring obtained Cr VI and is all converted into the less trivalent chromium of toxicity.
The method is higher by 35% than single elution method efficiency; Higher by 20% than single electric repair method efficiency.
Embodiment 3
The present embodiment selects the soil of cadmium pollution as reparation object.
Gather certain cadmium pollution soil, measuring pollution concentration in soil is 238mg/kg.
Cadmium soil is loaded in container 1, select titanium rod as electrode, be inserted in contaminated soil according to Fig. 1, according to cadmium charged character under the electric field, central electrode 4 is set to negative electrode in this embodiment, and all electrodes 5 are set to anode, and is wired on electrode controller 7, electrode controller 7 is wired on power supply 6, builds upper cover.
Switch on power 6, form closed-loop path, carry out the electro reclamation of the soil of cadmium pollution, through the reparation of 5 days, get in double layer screen wall 2 and analyze with outer sample, cadmium 100% outside result display double layer screen wall 2 all enters in double layer screen wall 2, rotate the inner shield wall 22 of double layer screen wall 2, opening is closed, inject groove 3 by reagent and inject calcium dihydrogen phosphate passivator inside double layer screen wall 2, through the process of 2 hours, it was 2.3mg/kg that monitoring obtains cadmium residual concentration in soil.
The method is higher by 40% than single elution method efficiency; Higher by 30% than single electric repair method efficiency.
From above-described embodiment, the present invention adopts electric repairing technique and the coupling of oxidation/reduction technology, under the condition of electro-catalysis, make the effect of chemical oxidation/reduction medicament amplify, and by electrochemical reaction, accelerate removal or the degraded of pollutant, degradation speed is fast, and degraded thoroughly, is one, soil remediation field innovative technology.Particularly the present invention is by contaminants, effectively can control the scope that chemical reagent adds and the amount added, and the high concentration of pollutant also accelerates the carrying out of reaction simultaneously, can not only reduce costs, and can ensure that soil can not be secondary polluted.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (10)
1. a soil remediation method, it is characterized in that, be included on the contaminated soil that need process and electric field is set, by contaminants, adding at the soil region assembling pollutant can by the chemical reagent of contaminant degradation or passivation, and chemical reagent to go down depollution thing in the continuation effect of electric field.
2. soil remediation method according to claim 1, is characterized in that, the described method arranging electric field is included in soil center and arranges central electrode, arranges the polarity all electrode contrary with central electrode at soil periphery; The double layer screen wall that negotiable pollution sources can stop again chemical reagent to circulate also is provided with, for limiting the soil region assembling pollution sources between described central electrode and all electrodes.
3. soil remediation method according to claim 1, is characterized in that, described can be oxidant or reducing agent by the chemical reagent of contaminant degradation; Described can be passivator by the chemical reagent of pollutant passivation.
4. a soil remediation equipment, is characterized in that, comprises the container that can hold soil, is arranged on the electrode of two kinds of polarity in container, the double layer screen wall that the negotiable pollution sources between the electrode being arranged on two kinds of polarity can stop again chemical reagent to circulate.
5. soil remediation equipment according to claim 4, is characterized in that, the electrode of described two kinds of polarity comprises the central electrode being arranged on container center, at all electrodes that the polarity of container inner wall periphery setting is contrary with central electrode;
Described double layer screen wall comprises the external shield wall relative with all electrodes, the inner shield wall relative with central electrode, and described external shield wall and inner shield wall can relatively rotate;
Described external shield wall and inner shield wall are provided with the opening that can dock, can opening be closed by rotation external shield wall and/or inner shield wall;
Described central electrode and all electrodes are bar electrode, and described central electrode is one, and described all electrodes are multiple, and are uniformly distributed along container inner wall periphery.
6. soil remediation equipment according to claim 4, is characterized in that, the aperture of described opening is 0.5-2cm.
7. soil remediation equipment according to claim 4, is characterized in that, described soil remediation equipment also comprises the power supply be electrically connected with the electrode of two kinds of polarity;
Described power supply can provide direct current, and galvanic voltage is not higher than 60V.
8. soil remediation equipment according to claim 4, it is characterized in that, also be provided with electrode controller between the electrode of described two kinds of polarity and power supply, described electrode controller comprises the time controller of the breaker of the dipole inversion of energy control electrode and the conversion time of energy control electrode.
9. soil remediation equipment according to claim 4, is characterized in that, the inwall of described double layer screen wall is provided with reagent and injects groove.
10. a soil remediation method, comprise and use soil remediation equipment to repair the contaminated soil that need process, it is characterized in that, described soil remediation equipment is the soil remediation equipment described in claim 4-9 any one.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513433A (en) * | 2017-01-20 | 2017-03-22 | 中国地质科学院矿产资源研究所 | Electric repair turnover device for heavy metal contaminated soil |
| CN106623397A (en) * | 2016-07-11 | 2017-05-10 | 国家地质实验测试中心 | Electrodynamics-permeation reaction grid device suitable for outdoor field repair of composite polluted soil and technological process |
| CN108326030A (en) * | 2018-01-11 | 2018-07-27 | 上海理工大学 | The heavy metal-polluted soil prosthetic device of convertible array-type electrode |
| CN109731902A (en) * | 2019-01-17 | 2019-05-10 | 天津友爱环保科技有限公司 | A kind of movable type electrochemical soil prosthetic device |
| CN109848202A (en) * | 2019-02-28 | 2019-06-07 | 北京中岩大地科技股份有限公司 | A kind of tower processing equipment of Polluted Soil and waste residue |
| CN112547787A (en) * | 2020-11-25 | 2021-03-26 | 合肥学院 | Portable plasma device and method for repairing polluted soil |
| CN114160565A (en) * | 2021-12-08 | 2022-03-11 | 江苏澳洋生态园林股份有限公司 | Electrochemical soil improvement system |
| CN114367533A (en) * | 2022-01-18 | 2022-04-19 | 陕西省土地工程建设集团有限责任公司 | Soil remediation system and method |
| CN115365288A (en) * | 2022-09-02 | 2022-11-22 | 中南大学 | Electric repair device and repair method for heavy metal contaminated soil by combining low-temperature driving |
| CN116554888A (en) * | 2023-07-11 | 2023-08-08 | 广东万山环境科技有限公司 | Soil restoration agent suitable for heavy metal pollution of soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030072052A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | dynamic galvanic |
| CN1695835A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for quick restoring soil polluted by heavy metal in situ |
| CN102941217A (en) * | 2012-11-15 | 2013-02-27 | 华北电力大学 | Electric power repairing device and method for cylindrical arrangement electrode |
| CN103286119A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Device and method for restoring chlorobenzene-type organism polluted soil and underground water |
| CN204320793U (en) * | 2014-11-18 | 2015-05-13 | 青岛新天地环境保护有限责任公司 | A kind of horizontal permeable reactive barrier for soil remediation |
-
2015
- 2015-09-29 CN CN201510634000.1A patent/CN105149336B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030072052A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | dynamic galvanic |
| CN1695835A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for quick restoring soil polluted by heavy metal in situ |
| CN102941217A (en) * | 2012-11-15 | 2013-02-27 | 华北电力大学 | Electric power repairing device and method for cylindrical arrangement electrode |
| CN103286119A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Device and method for restoring chlorobenzene-type organism polluted soil and underground water |
| CN204320793U (en) * | 2014-11-18 | 2015-05-13 | 青岛新天地环境保护有限责任公司 | A kind of horizontal permeable reactive barrier for soil remediation |
Non-Patent Citations (3)
| Title |
|---|
| 刘安安: "电动力-Fenton氧化法修复苯酚污染土壤研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 孙英杰 等: "ＥＫ－ＰＲＢ联合修复技术及其应用进展", 《青岛理工大学学报》 * |
| 黄益宗 等: "重金属污染土壤修复技术及其修复实践", 《农业环境科学学报》 * |
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