CN203253713U - Two-dimensional non-uniform flied experimental device used for electrically remedying contaminated soil - Google Patents
Two-dimensional non-uniform flied experimental device used for electrically remedying contaminated soil Download PDFInfo
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- CN203253713U CN203253713U CN 201320249248 CN201320249248U CN203253713U CN 203253713 U CN203253713 U CN 203253713U CN 201320249248 CN201320249248 CN 201320249248 CN 201320249248 U CN201320249248 U CN 201320249248U CN 203253713 U CN203253713 U CN 203253713U
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Abstract
The utility model provides a two-dimensional non-uniform field experimental device used for electrically remedying contaminated soil. The device comprises a soil sample tank, a gas measuring device, a liquid circulating and measuring device, an electrode control system and a data acquisition device, wherein the soil sample tank comprises a tank body, a top cover, a bottom cover and bolts; each of the top cover and the bottom cover is provided with a central nut and a plurality of other annular nuts which are around the central nut and are in central symmetry, and electrodes are arranged between the upper nuts and the lower nuts; a plurality of probes are uniformly distributed on the top cover; graded tubes are used as the gas measuring device; the liquid circulating and measuring device comprises a connecting pipe, a header shunting pipe, a peristaltic pump and a liquid measuring device; the electrode control system is connected with the electrodes; the data acquisition system is connected with the probes. The two-dimensional non-uniform filed experimental device can well simulate the remedying situation of the contaminated soil, so as to conveniently measure various electric power parameters in real time in an experiment process and be beneficial to removal of pollutants, energy consumption reduction and high system reliability, and has experimental valves and application prospect.
Description
Technical field
The utility model relates to a kind of for pollutant purification and treating apparatus, relates to especially a kind of two-dimentional inhomogeneous field experimental provision for electric restoring polluted soil, belongs to environmental protection and prevention and cure of pollution and improvement field.
Background technology
Along with continuing of China's process of industrialization, and the heavy dose of agricultural production Pesticides, on a large scale, the use of long expiration, thereby accumulated comparatively serious soil pollution, for example, in polluted enterprises or areal of industrial concentration, industrial and mineral mining area and surrounding area, city and suburban area soil seriously polluted area and high risk area have appearred.Meanwhile, the type of soil pollution also presents variation, complicated trend, for example, a lot of areas have the old and new's pollutant and deposit, severe situation that inorganic organic composite pollutes.
Soil pollution has obvious threat to ecological environment, drinking water source, agricultural product quality and health etc., in view of this, a large amount of further investigations has been carried out for the prevention of contaminated soil, improvement, harmless treatment etc. in countries in the world, tries hard to find the contaminated soil processing method of quick, low energy consumption, high cost effectiveness.And compare with western developed country, China is just at the early-stage aspect soil remediation and reparation, and practical, simple and effective soil pollution recovery technique and new device are had urgent demand.
At present, the recovery technique of traditional contaminated soil mainly contains advanced oxidation processes, stable/curing technology, chemical leaching method, high temperature pyrolytic cracking (HTP), phytoremediation, microorganism repairing method, gas phase extraction process etc.But all there is shortcomings in these methods, easily the physicochemical property of soil are caused serious adverse effect such as advanced oxidation processes; Stable/curing technology has just been realized the stable of heavy metal and has been solidified, can't fundamentally reduce the total metals in the contaminated soil; The chemical leaching method is only effective to specific soil and pollutant, and the scope of application is less, and elution efficiency is low; The power consumption of high temperature pyrolytic cracking (HTP) is larger, and the physicochemical property of soil is also had adverse effect; Although the phytoremediation cost is lower, and is simple to operate, efficient is excessively low, and is consuming time too very long; The cost of microorganism repairing method is higher, and repairing efficiency is long; The soil vapor extraction method is applicable to the reparation of high volatile volatile organic matter such as the contaminated soils such as gasoline, benzene and tetrachloro-ethylene, and except efficient lower, the cycle is longer.
All this kind has caused the range of application of said method and using value all to be subject to certain restriction, can't promote on a large scale.In the last few years, the electronic repairing method of contaminated soil obtained paying attention to day by day, and scientist has carried out research extensively and profoundly to it, has developed multiple electric repair method and related device.
CN1695834A discloses a kind of electrodynamics restorative procedure of heavy-metal contaminated soil.Described method adopts amberplex that negative electrode and tested soil sample are separated, and places control amberplex obstruction between amberplex and the soil, the H that utilizes electrode self to produce with porous ceramics
+And OH
-, and by the iris action of amberplex, the pH value of soil in the control electrodynamics repair process, stripping and the migration of acceleration pollutant.
CN201454977U discloses a kind of polluted soil electrokinetic adsorbing composite heavy metal pollution soil restoration device.Described device comprises and adopts graphite to make electrode, electrode comprises anode and negative electrode, anode places the anode region, negative electrode places the cathodic region, by the anode region to the cathodic region, set gradually the porous adsorbing material active carbon of the dividing plate that prevents the heavy metal ion diffusion, the porous adsorbing material active carbon of Adsorption of Heavy Metals, the heavy-metal contaminated soil that needs processing, Adsorption of Heavy Metals and prevent the dividing plate that the polluted heavy metals ion spreads, for the rising that prevents cathode zone pH and the decline of anode region pH, and adopt the method for switching polarity of electrode.
CN1899717B discloses the technique of a kind of electric power and iron permeable reactive barrier renovation of heavy metal polluted soil with combined.Described technique is that graphite electrode is installed in the soil both sides, lay the iron wall between two electrodes and pending soil, plugged, under electric field action, anionic metal is moved near the anode, and metal cation is moved near the negative electrode, reacts with it when heavy metal passes the iron wall and is adsorbed, reduces and precipitate.
CN202356398U discloses the electronic prosthetic device of removing heavy metal in soil and organic pollution.Described device comprises electronic reparation post, electrode, electrolytic cell, electrolyte treatment pond, acidometer and dc source, by the pH automatic control system, guarantee the comparativity between the result, improved control accuracy, can improve removal of pollutants effect in the contaminated soil.
CN102500610A discloses a kind of method of electrodynamics associating drip irrigation restoration of soil polluted by heavy metal.Described method is that positive and negative electrode is installed at the contaminated soil two ends, and between positive and negative electrode and contaminated soil, place adsorbent, above near the soil adsorbent, drip irrigation appliance is set, electrolyte, buffer solution or complexing agent etc. are added drop-wise in the soil of both sides, electrode is carried out periodicity to be switched, thereby being adsorbed agent by the electrokinetic migration effect, heavy metal adsorbs, thus the concentration of reduction heavy metal in soil.
CN102806228A discloses the electronic prosthetic device of a kind of contaminated soil heterotopic and method.Described device comprises soil bearing system, electrode system and electrode working solution spray system, and when work, the top electrode of electrode system is electrically charged opposite with bottom electrode institute.
CN102896143A discloses a kind of powered surface activating agent associating repairing polluted soil experimental provision.Described device comprises the main body that contaminated soil and uncontamination soil are housed, the two side portions of corresponding contaminated soil vertically is equipped with two parallel electrode chamber perforated baffles in main body, two perforated baffles and main body inner surface form two electrode chambers, electrode respectively is housed in electrode chamber, by electrode is applied electric current, can improve the treatment effect of contaminated soil.
CN202667240U discloses a kind of oil-polluted soils prosthetic device based on high-pressure electrostatic.Described device comprises high voltage source, high-pressure electrostatic soil treatment part, High Voltage Used for Absorbing Dust part, insulated part, described high-pressure electrostatic soil treatment partly comprises electrode, form discharge by pressurization between electrode, petroleum hydrocarbon in the contaminated soil can be decomposed, decompose the noxious material that generates and adsorbed by the High Voltage Used for Absorbing Dust part.This device is mainly used in the reparation of the contaminated soil that Petroleum Production and carrier cause.
As mentioned above, although people have researched and developed multiple electronic prosthetic device and method, all have some shortcomings, for example: 1. the board-like materials that use are done electrode more.2. positive and negative electrode is distributed in the both sides of contaminated soil and causes pollutant to move linearly, and probably enters the dead air space of soil and can't move to electrode tip.3. the important parameters such as the electrodialysis stream in can't the experiments of measuring process and gas production rate.4. can only form uniform and stable uniform electric field, can't freely switch positive and negative electrode or switch loaded down with trivial detailsly, cause energy consumption high, and system's fluctuation of service.
For these reasons, administering the field at contaminated soil at present, still have tight demand for contaminated soil restorative procedure and device novel, respond well, high removal effect, also is research emphasis and the focus in present soil remediation field.
The utility model content
Shortcomings and deficiencies in view of above-mentioned technology, the inventor is from practical application, device to electric restoring polluted soil has carried out a large amount of further investigations, after having paid creative work, develop a kind of device of electric restoring polluted soil, this device can continue to add additive or synergist in experimentation in soil, such as complexing agent, chelating agent, surfactant, acid-base salt solution, cushioning liquid, microorganisms etc. promote the desorption of pollutant in soil, degraded or various chemical reaction process, by electrode control system the electrode of particular arrangement is controlled simultaneously, thereby produced inhomogeneous field, can be so that the pollutant generation non-rectilinear two dimensional migration in the soil, and can in and pH, reduce energy consumption, be convenient for measuring simultaneously the electrodialysis stream in the experimentation, gas, the important parameters such as voltage, help to analyze Electroremediation mechanism, have a good application prospect and be worth, be better than at present all similar devices in various indexs.
For achieving the above object, the utility model provides a kind of two-dimentional inhomogeneous field experimental provision of electric restoring polluted soil, particularly, described device comprises soil sample groove, gas measurement device, liquid-circulating and measurement mechanism, electrode control system and data collecting system.
Wherein, described soil sample groove comprises cell body, top cover, bottom, and is used for the fixedly bolt of cell body, top cover, bottom; The opposite position of described top cover and bottom is provided with a plurality of nuts, and one of them nut is positioned at the center, all the other nuts be positioned at this center nut around, and distribute ringwise take described center nut as symmetrical centre; Be provided with electrode between the lower nut corresponding on described, i.e. contre electrode and a plurality of ring electrode; Also be evenly distributed with a plurality of probes that extend into described soil sample groove inside on the described top cover.
Described gas measurement device is the graded tube that links to each other with each electrode upper end.
Described liquid-circulating and measurement mechanism comprise the tube connector that links to each other with the contre electrode lower end, by the isocon that links to each other with the ring electrode lower end converge total isocon of forming, the peristaltic pump that links to each other with total isocon with described tube connector, the device for measuring volumetric flow of fluid that links to each other of terminal with tube connector and total isocon end respectively.
Described electrode control system links to each other with each electrode.
Described data collecting system links to each other with each probe.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, the 3D shape of the cell body of described soil sample groove is special the restriction not, and, cuboid cylindrical such as can be, the square bodily form etc. are preferably cylindrical.Its volume is special the restriction not, can carry out suitable selection according to soil treatment amount, practical operation situation.Also there is no particular limitation for its material, if the pressure when it has some strength, insulation and can bear operation, non-limitingly such as can be polyester material, safety glass, PVC etc.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described top cover and bottom lay respectively at the upper and lower of described cell body, and can cover described cell body fully, thereby consist of a sealed volume space with the pending contaminated soil of packing into cell body.The material of described top cover and bottom is special the restriction not, if the pressure when it has some strength, insulation and can bear operation, non-limitingly such as can be polyester material, safety glass, PVC etc.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described cell body, top cover and bottom are fixed together by bolt, namely at the superimposed place of described cell body, top cover and bottom, bolt passes top cover, cell body and bottom from top to bottom in turn; Perhaps described top cover and bottom are greater than the horizontal section area of cell body, and namely the edge of top cover and bottom stretches out outside the cell body, and bolt passes the marginal portion of stretching out of top cover and bottom from top to bottom, thus with cell body tightly " folder " live, realize that this three's is fixing.By above-mentioned fixing, can form a confined space that holds pending contaminated soil.Preferably, in order to seal better, between described top cover and cell body, and the sealing ring that is provided with its sealing function between described bottom and the cell body.Non-limiting ground, described sealing ring material can be any known sealant material, as can be various caulking gums, enumerates acrylonitrile-butadiene rubber, fluorubber, silicon rubber or ACM etc. non-limitingly.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described top cover and bottom are provided with a plurality of nuts at opposite position, one of them nut is positioned at the center of described top cover and bottom, all the other nuts be positioned at this center nut around, and distribute ringwise take described center nut as symmetrical centre.On top cover and bottom corresponding, be provided with electrode between the lower nut, namely up and down two center positions be contre electrode, a plurality of electrodes formation ring electrodes at all the other nut location places.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, the quantity of described ring electrode is special the restriction not, can carry out according to the size of described cell body horizontal section suitable selection and/or definite, thereby the center with contre electrode presents symmetric arrays, for example in the distance to contre electrode, described ring electrode can only be a ring around contre electrode, also can be multi-turn around contre electrode, for example be the 2-4 circle.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, as preferred embodiment a kind of, described electrode (unless otherwise prescribed, when with " described electrode ", " each electrode " use, mean described contre electrode and ring electrode, lower with) be hollow form.More preferably, for the described electrode of hollow form is provided with aperture to flow into for liquid and to flow out at the electrode tube wall, for example these apertures can evenly distribute, and for example the aperture can be 0.5mm-5mm, for example can be 0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, as preferred embodiment a kind of, described electrode periphery is provided with leak-proof device, affects normal operation and the loss of electrode to prevent soil particle from entering into hollow electrode.Described leak-proof device is special the restriction not, as long as can stop soil particle to enter in the electrode, for example can be filter paper, filter cloth or filter screen.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, also be evenly distributed with a plurality of probes that extend into described soil sample groove inside on the described top cover, in brief, namely have equally distributed aperture to insert probe at top cover, then can tighten probe and realize fixing.The length of described probe is not special restriction, as long as it can extend in the soil and not touch bottom, for example it can be the 1/3-2/3 of electrode length.The two-dimentional voltage that the purpose that described probe is set is to measure pending soil distributes, thereby data acquisition is determined the parameters such as voltage gradient that apply, for operation carry out smoothly provide the most direct data to show with mensuration as a result etc.The type of described probe is special the restriction not, as long as it can measure the voltage that produces in the soil, can be any known voltage probe.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described gas measurement device is the graded tube that links to each other with each electrode upper end, but this graded tube top is provided with the opening of opening and closing of fault, when sealing, can determine by the decline of liquid level the volume of gas.When not measuring gas volume, then be in opening, keeping liquid level place pressure is environmental pressure.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described liquid-circulating and measurement mechanism comprise the tube connector that links to each other with the contre electrode lower end, by the isocon that links to each other with the ring electrode lower end converge total isocon of forming, the peristaltic pump that links to each other with total isocon with described tube connector, the device for measuring volumetric flow of fluid that links to each other with tube connector end and isocon end.
Wherein, an end of described tube connector links to each other with the contre electrode lower end, and the other end connects described device for measuring volumetric flow of fluid.Described isocon connects all ring electrode lower ends, and merges into a total isocon.Described peristaltic pump links to each other with total isocon with tube connector, and peristaltic pump is special the restriction not, as long as it can carry out circulating reflux with the liquid in the device for measuring volumetric flow of fluid, can use any known peristaltic pump.By using peristaltic pump, the liquid from male or female can be back to respectively in negative electrode or the anode, thereby can in and pH value, avoided the precipitation of pollutant under acidity/alkali condition that causes because of the too high or too low of pH value.
Wherein, the end of described tube connector and the isocon of being connected all connects a three-way pipe, and the path of described three-way pipe by the wherein in the future liquid of self-electrode flow in the described device for measuring volumetric flow of fluid, and another path then communicates with atmosphere.
Wherein, the liquid that flows out from electrode can part be back in the electrode by described peristaltic pump, and with the neutralization of realization pH value, and remainder can enter the device for measuring volumetric flow of fluid discharge, to reach the purpose of removing pollutant, rehabilitating soil.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described electrode control system links to each other with each electrode.By described electrode control system, can control and switch the polarity of contre electrode and all ring electrodes etc., thereby soil is applied inhomogeneous field, realize moving process and the pattern of control pollutant, be convenient to study the migration of pollutant and remove mechanism, thereby realize good measurement and pollutant removal.In addition, the timing that can realize anode and negative electrode by electrode control system between contre electrode and ring electrode is switched, before switching, be 1 minute-12 hours the conduction time to electrode, this scope has comprised any subinterval scope wherein, for example 5 minutes-11.5 hours, 30 minutes-11 hours, 1 hour-10 hours, 2-9 hour, 3-8 hour, 4-7 hour or 5-6 hour, for example take conduction time as 1 hour as example, its implication is anode and cathodal closing 1 hour, then switches: anode is switched to negative electrode and negative electrode is switched to anode (concrete switch sequence can referring to Fig. 4).By switching, the performance of system has been stablized near advantageously rapid rising or the decline of the soil pH value control electrode.Wherein, for the smooth running of described electrode control system, connect dc source to obtain the power source of different voltage gradients.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, as preferred embodiment a kind of, be provided with ammeter between described electrode control system and the contre electrode, to show the current data that is applied, it typically is 1mA-1000mA, for example can be 1mA, 5mA, 10mA, 50mA, 100mA, 200mA, 300mA, 400mA, 500mA, 600mA, 700mA, 800mA, 900mA or 1000mA.。
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, described data collecting system links to each other with each probe.By described data collecting system, can gather the two-dimentional voltage data that all probe measurements are arrived, thereby for the operator selects and/or changes voltage to provide direct data information, generally speaking, the voltage that applies should be so that the voltage gradient in the soil is 0.1V/cm-5V/cm, for example can be 0.1V/cm, 0.5V/cm, 1V/cm, 2V/cm, 3V/cm, 4V/cm or 5V/cm.
In the two-dimentional inhomogeneous field experimental provision of described electric restoring polluted soil of the present utility model, can in experimentation, continue in soil, to add additive or synergist, promote desorption, degraded or the various chemical reaction process of pollutant in soil such as complexing agent, chelating agent, surfactant, acid-base salt solution, cushioning liquid, microorganism etc.This adding can be undertaken by three ports of tube connector and total isocon end, and can add at any time according to the pollutant removal situation.
This adding can manually be carried out, for example can manually add needed additive or synergist, but as preferred embodiment a kind of, described two-dimentional inhomogeneous field experimental provision also comprises the liquid adding apparatus, described liquid adding apparatus can be realized the adding of desired additives or synergist, is with graduated container such as pipette, buret etc. such as can be.
The beneficial effects of the utility model are:
1. utilize contre electrode and ring electrode in soil, to apply inhomogeneous field, make pollutant do the non-linear two dimensional migration, prevented that it from entering in the enclosed type hole, and can simulate better the actual repair situation, distribute by the two-dimentional voltage in the probe assay soil, can determine easily that voltage gradient distributes.
2. utilize peristaltic pump in the future the liquid of self-electrode reflux, can in and the acidity/alkalescence of electrode, prevent from pollutant in high pH value or hang down under the pH value precipitating, more be conducive to removal of pollutants.
3. by the changeable different polarity of electrode of electrode control system, and because the novelty of electrode arrangement mode changes, strengthen contacting and reaction of pollutant and the soil liquid, and in and near the Acidity of Aikalinity of electrode, thereby saved energy consumption, keep the stability of a system.
As mentioned above, the utility model provides electronic prosthetic device a kind of novelty, that can remove pollutant in soil, and described device has multiple excellent characteristics, is suitable for very much the repair process of contaminated soil.
Description of drawings
In order to be illustrated more clearly in described device of the present utility model, the accompanying drawing of required use was done simple the introduction during the below will describe embodiment, but apparently, the accompanying drawing that the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain modified accompanying drawing similar with it according to these accompanying drawings.
Fig. 1 is the structural representation of device described in the utility model.
Fig. 2 is the top view of the soil sample groove of device described in the utility model.
Fig. 3 is the preparation of soil sample schematic diagram of device described in the utility model.
Wherein, the corresponding relation of the elements/components of each numeral number and/or code name and device described in the utility model is as follows:
1. cell body 2. top covers 3. bottoms
4. contre electrode 5. ring electrodes 6. probes
7. sealing ring 8. bolts 9. device for measuring volumetric flow of fluid
10. peristaltic pump 11. gas measurement devices 12. data collecting systems
13. electrode control system 14. dc sources 15. nuts
16. isocon 17. tube connectors 18. pyknosis top boards
19. pyknosis groove 20. liquid adding apparatus
The specific embodiment
With reference to the accompanying drawings following; described device of the present utility model is described in detail further and/or sets forth; but should be appreciated that; the exemplary description that this just makes device of the present utility model and method of operating thereof; it is intended that to explain/elaboration described device of the present utility model and embodiment thereof; but not be used for limiting and/or restriction the utility model, more non-protection domain of the present utility model is confined to this.
With reference to figure 1, described device of the present utility model comprises soil sample groove, gas measurement device 11, liquid-circulating and measurement mechanism, electrode control system 13 and data collecting system 12.Wherein, described soil sample groove comprises cell body 1, top cover 2, bottom 3, and is used for the fixedly bolt 8 of cell body 1, top cover 2, bottom 3, in order to strengthen sealing property, is being equipped with sealing ring 7 between top cover 2 and the cell body 1 and between bottom 3 and the cell body 1.
The opposite position of described top cover 2 and bottom 3 is provided with a plurality of nut (not shown), and one of them nut is positioned at the center, all the other nuts be positioned at this center nut around, and distribute ringwise take described center nut as symmetrical centre.Be provided with electrode between the corresponding described upper lower nut, be contre electrode 4 and a plurality of ring electrode 5, electrode is hollow form, and the electrode tube wall is provided with equally distributed a plurality of aperture, when installing, electrode around it, is provided with leak-proof device (not shown), such as filter paper, filter cloth or filter screen etc.Also be evenly distributed with a plurality of probes 6 that extend into described soil sample groove inside on the top cover 2.
Described gas measurement device 11 is the graded tube that links to each other with the electrode upper end.
Described liquid-circulating and measurement mechanism comprise the tube connector 17 that links to each other with contre electrode 5 lower ends, the isocon 16 that links to each other with ring electrode 5 lower ends, the peristaltic pump 10 between tube connector, the device for measuring volumetric flow of fluid that links to each other with the end of the end of tube connector 17 and isocon 16.
Described electrode control system 13 links to each other with each electrode, and by dc source 14 powered operations.Between described electrode control system 13 and contre electrode 4, be provided with ammeter, thereby can detect the size of current in the soil.
Described data collecting system 12 links to each other with each probe 6, thereby can detect in real time the voltage distribution gradient in the soil.
Described device of the present utility model also can comprise liquid adding apparatus 20, it can join additive, synergist or microorganism etc. in the threeway of tube connector or total isocon end, thereby the backflow by peristaltic pump enters into soil, realizes the efficient removal of pollutant under the inhomogeneous field effect.
With reference to figure 2, this figure is the top view of the soil sample groove of device described in the utility model.Described cell body horizontal section is circular, is top cover on it, and is fixed by a plurality of bolts 8.The center is contre electrode 4, is symmetrically distributed with a plurality of ring electrodes 5 around this center, is inserted with a plurality of equally distributed probes 6 on the top cover.In order to strengthen sealing property, between top cover and cell body, be provided with sealing ring 7.
With reference to figure 3, this figure is the preparation of soil sample schematic diagram of device described in the utility model.When the soil sample of preparation contaminated soil, the soil sample groove to be inverted, the base plate of described top cover 2 during as the preparation of soil sample unscrewed the nut of all electrodes, and probe 6 turned on.Above cell body 1, place the pyknosis groove 19 identical with the cell body internal diameter, place than the smaller pyknosis plate 18 of described pyknosis groove 19 internal diameters pyknosis groove 19 tops, for example than the little 1-5mm of described pyknosis groove 19 internal diameters, thereby can closely enter into described pyknosis groove 19 inside, and compress the pollution mud of pouring into, have the water that overflows when a plurality of apertures supply to compress to discharge on the described pyknosis plate 18.
When the preparation of soil sample, mud slowly is poured in the described cell body 1, mix, then on mud, lay filter screen or filter cloth, then place pyknosis plate 17, apply to add and press pyknosis plate 17 downwards, thereby mud is carried out fixed compression.In compression process, the water in the mud can flow out from the slit of electrode hole, probe aperture and the aperture on the pyknosis plate 18.
When compression finishes, finish fixed after, take pyknosis groove 19 and pyknosis plate 18 away, and remove filter screen or the filter cloth of placing, and remove suitably unnecessary soil (when not unnecessary, then need not remove) according to the volume of soil sample groove.Then put described bottom 3, tight a bolt 8 and probe 6, and tighten the nut of electrode.Then the soil sample groove is overturn, thereby finished the preparation of soil sample.
Although for for example and the purpose of description, and introduced structure and processing procedure shown in above-mentioned embodiment of the present utility model and the accompanying drawing.But these are not to be detailed description, scope of the present utility model can not be confined to this.For a person skilled in the art, can make numerous modifications and variations to above-mentioned embodiment of the present utility model, and these all modifications and/or change all are included in as within the claim limited range of the present utility model, do not break away from the scope and spirit of the present utility model that claim as described limits.
Claims (10)
1. two-dimentional inhomogeneous field experimental provision that is used for the Electroremediation soil pollution, it is characterized in that: described device comprises soil sample groove, gas measurement device, liquid-circulating and measurement mechanism, electrode control system and data collecting system;
Described soil sample groove comprises cell body, top cover, bottom, and is used for the fixedly bolt of cell body, top cover, bottom; The opposite position of described top cover and bottom is provided with a plurality of nuts, and one of them nut is positioned at the center, all the other nuts be positioned at this center nut around, and distribute ringwise take described center nut as symmetrical centre; Be provided with electrode between the lower nut corresponding on described; Also be evenly distributed with a plurality of probes that extend into described soil sample groove inside on the described top cover;
Described gas measurement device is the graded tube that links to each other with each electrode upper end;
Described liquid-circulating and measurement mechanism comprise the tube connector that links to each other with the contre electrode lower end, by the isocon that links to each other with the ring electrode lower end converge total isocon of forming, the peristaltic pump that links to each other with total isocon with described tube connector, the device for measuring volumetric flow of fluid that links to each other of terminal with tube connector and total isocon end respectively;
Described electrode control system links to each other with each electrode;
Described data collecting system links to each other with each probe.
2. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 1, it is characterized in that: described electrode is the form of hollow.
3. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 2 is characterized in that: for the described electrode of hollow form is provided with aperture at the electrode tube wall.
4. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 1, it is characterized in that: described electrode periphery is provided with leak-proof device.
5. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 4, it is characterized in that: described leak-proof device is filter paper, filter cloth or filter screen.
6. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 1 is characterized in that: between described top cover and the cell body, be equipped with sealing ring between bottom and the cell body.
7. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 6, it is characterized in that: described sealing ring is acrylonitrile-butadiene rubber, fluorubber, silicon rubber or ACM.
8. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 1, it is characterized in that: the length of described probe is the 1/3-2/3 of electrode length.
9. the two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution as claimed in claim 1, it is characterized in that: described device also comprises the liquid adding apparatus.
10. such as each described two-dimentional inhomogeneous field experimental provision for the Electroremediation soil pollution of claim 1-9, it is characterized in that: be provided with ammeter between described electrode control system and the contre electrode.
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Cited By (8)
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| CN103240268A (en) * | 2013-05-09 | 2013-08-14 | 中国石油大学(华东) | Two-dimensional inhomogeneous field experiment device for electrically repairing polluted soil |
| CN103736718A (en) * | 2013-12-27 | 2014-04-23 | 河南理工大学 | Electrokinetic remediation method and device of heavy metal contaminated soil |
| CN105632314A (en) * | 2015-11-05 | 2016-06-01 | 浙江工业大学 | Experiment apparatus for electrokinetic remediation and use method |
| CN105689387A (en) * | 2016-03-30 | 2016-06-22 | 中国石油大学(华东) | Method for restoring combined pollution soil through electrodynamic force-fuel cell coupling device |
| CN105728453A (en) * | 2016-03-11 | 2016-07-06 | 中国科学院沈阳应用生态研究所 | Field intensity compensation method for constructing inhomogeneous field through auxiliary electrode |
| CN105750313A (en) * | 2016-05-04 | 2016-07-13 | 辽宁石油化工大学 | Surfactant enhanced organic polluted soil electric-biological remediation method and device |
| CN105750322A (en) * | 2016-03-11 | 2016-07-13 | 中国科学院沈阳应用生态研究所 | Potential difference based current guide electrode layout and field intensity compensation method |
| CN106180159A (en) * | 2016-07-07 | 2016-12-07 | 北京大学 | A kind of contaminated soil Electroremediation system power real-time acquisition device based on data collecting card |
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| CN103240268A (en) * | 2013-05-09 | 2013-08-14 | 中国石油大学(华东) | Two-dimensional inhomogeneous field experiment device for electrically repairing polluted soil |
| CN103240268B (en) * | 2013-05-09 | 2014-06-11 | 中国石油大学(华东) | Two-dimensional inhomogeneous field experiment device for electrically repairing polluted soil |
| CN103736718A (en) * | 2013-12-27 | 2014-04-23 | 河南理工大学 | Electrokinetic remediation method and device of heavy metal contaminated soil |
| CN105632314B (en) * | 2015-11-05 | 2018-08-21 | 浙江工业大学 | A kind of experimental facilities and application method for electromotion repairing technique |
| CN105632314A (en) * | 2015-11-05 | 2016-06-01 | 浙江工业大学 | Experiment apparatus for electrokinetic remediation and use method |
| CN105728453A (en) * | 2016-03-11 | 2016-07-06 | 中国科学院沈阳应用生态研究所 | Field intensity compensation method for constructing inhomogeneous field through auxiliary electrode |
| CN105750322A (en) * | 2016-03-11 | 2016-07-13 | 中国科学院沈阳应用生态研究所 | Potential difference based current guide electrode layout and field intensity compensation method |
| US10471485B2 (en) | 2016-03-11 | 2019-11-12 | Shenyang Institute Of Applied Ecology, Chinese Academy Of Sciences | Field intensity compensation method for constructing non-uniform electric field through auxiliary electrode |
| US10717119B2 (en) | 2016-03-11 | 2020-07-21 | Shenyang Institute Of Applied Ecology, Chinese Academy Of Sciences | Potential difference-based diversion electrode arrangement and field intensity compensation method |
| CN105689387A (en) * | 2016-03-30 | 2016-06-22 | 中国石油大学(华东) | Method for restoring combined pollution soil through electrodynamic force-fuel cell coupling device |
| CN105689387B (en) * | 2016-03-30 | 2018-08-31 | 中国石油大学(华东) | A kind of method that electric power-fuel cell coupling device repairs combined contamination soil |
| CN105750313A (en) * | 2016-05-04 | 2016-07-13 | 辽宁石油化工大学 | Surfactant enhanced organic polluted soil electric-biological remediation method and device |
| CN105750313B (en) * | 2016-05-04 | 2019-09-10 | 辽宁石油化工大学 | A kind of method that surfactant reinforcing organic polluted soil is electronic-biological prosthetic |
| CN106180159A (en) * | 2016-07-07 | 2016-12-07 | 北京大学 | A kind of contaminated soil Electroremediation system power real-time acquisition device based on data collecting card |
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