CN102513342A - Polypropylene composite functional electrode and application thereof - Google Patents
Polypropylene composite functional electrode and application thereof Download PDFInfo
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- CN102513342A CN102513342A CN2011104391871A CN201110439187A CN102513342A CN 102513342 A CN102513342 A CN 102513342A CN 2011104391871 A CN2011104391871 A CN 2011104391871A CN 201110439187 A CN201110439187 A CN 201110439187A CN 102513342 A CN102513342 A CN 102513342A
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Abstract
The invention relates to the technical field of electric restoration and specifically provides a polypropylene composite functional electrode and application thereof. The composite functional electrode is an electrode with surface cladded with polypropylene oil-absorbing cotton with gaps. The polypropylene composite functional electrode is used for electric restoration of organically polluted soil. The composite electrode of the invention can rapidly adsorb pollutants in the organically polluted soil under effect of the polypropylene oil-absorbing cotton, promote a organic pollutant removal process under effect of an electric field and accelerate restoration efficiency of organically polluted soil.
Description
Technical field
The present invention relates to the electric repairing technique field, is a kind of polypropylene complex function electrode and application thereof specifically.
Background technology
Electric repairing technique is a kind of effective ways of renovation of organic pollution soil.Electronic reparation is promptly inserted conductive electrode in the contaminated soil zone, forms DC electric field, through electrokinesis pollutant is focused on unified removal the in the FX; Or electric field action promotes the especially metabolism of the microorganism of electrode near zone in the electric field action scope in edaphon, quickens the degraded of pollutant.Electronic repairing efficiency is short, efficient is high, not limited by soil heterogeneity and environmental condition, can carry out the dystopy reparation, also can carry out the original position reparation at the pollution scene.
A critical problem of electrokinetic technique renovation of organic pollution soil is a problem of removing efficient.The conductive electrode of ordinary meaning is the graphite electrode or the stainless steel metal conductive electrode of inertia, only can faint DC electric field be provided for the contaminated soil reparation.And for most organic pollutants; Poorly soluble in soil; Generally in soil, be difficult to migration or desorption, other regional contaminant removal efficiency are significantly less than the electrode near zone, therefore; Find a kind of method to make other regional pollutants can move to the electrode near zone, be significant improving electronic renovation of organic pollution soil removal efficient.
Summary of the invention
The objective of the invention is provides a kind of polypropylene complex function electrode and application thereof in order to quicken the efficient of electronic renovation of organic pollution soil.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of polypropylene complex function electrode, complex function electrode are that electrode surface coats the polypropylene oil suction cotton that has the space.
Offer the circular hole that a plurality of diameters are 0.5-1.0cm on the said polypropylene oil suction cotton.The bare area that said surface coats the electrode of the polypropylene oil suction cotton that has the space is the 50%-70% that has the cotton area of polypropylene oil suction in space.Said electrode is the inertia conductive electrode.Said electrode is graphite electrode, stainless steel electrode or platinum electrode.
The application of polypropylene complex function electrode, said polypropylene complex function electrode is used for the electronic reparation of organic polluted soil.Said polypropylene complex function electrode added be located at the contaminated soil two ends, under electronic repairing condition,, organic pollution is adsorbed onto near the combination electrode zone, and then realizes effectively removing through the cotton effect of polypropylene oil suction that coats on the electrode.
The present invention has following advantage:
1. the organic pollution effect removed in the organic polluted soil of the present invention is remarkable.Through experiment showed, that combination electrode of the present invention can promote the removal of organic pollution in the soil, be example with 50mg/g contaminated by diesel oil soil, to repair after 30 days, clearance is higher by 26% than the electronic remediation efficiency of ordinary electrode.
2. the preparation method is simple.The polypropylene oil suction cotton can directly have been bought from market in the material of preparation combination electrode, can change voluntarily behind the use certain hour, and cheap, the preparation process is simple, easy operating.
Description of drawings
The polypropylene complex function electrode that Fig. 1 provides for the embodiment of the invention, wherein 1 is the complex function electrode, and 2 is cotton for the polypropylene oil suction that has hole, and 3 is exposed electrode.
The specific embodiment
Below in conjunction with embodiment the present invention is further specified, but embodiment of the present invention is not limited thereto.
Embodiment 1
The preparation of graphite combination electrode: present embodiment electrode used therein material is a graphite, and long 20cm, diameter are the graphite electrode of 1cm.The polypropylene oil suction cotton is the thick white oil absorbent material of commercially available 1.5mm; Offer the circular hole that a plurality of diameters are 0.5cm on the oil absorbent material surface; With PU glue oil absorbent material is bonded in the graphite electrode top layer, graphite electrode can be contacted with soil, realize the function of conduction; Graphite electrode bare area after the said coating be have the space the cotton area of polypropylene oil suction 50%, dry back subsequent use (referring to Fig. 1).
The cotton characteristics of said polypropylene oil suction are oil suctions and not absorbing water, and the oil mass of receiving is big, and adsorptivity is strong.
Contaminated soil is an autogamy oil content 50mg/g oil-polluted soils.Cleaning soil is a brown earth, removes macroscopic impurity.Indoor natural wind is done the sieve that 2mm is crossed in the back.Crude oil picks up from Chinese Daqing oil field.Be mixed with behind the oil-polluted soils natural air drying place 7 days subsequent use.
The soil chamber is that rectangular lucite is processed, long 40cm, wide 20cm, high 20cm.The above-mentioned combination electrode for preparing is inserted in the contaminated soil, and connecting adjustable electronic prosthetic device is electrode power supply, and the distance between adjacent two combination electrodes is 20cm, and using distilled water to regulate soil moisture is 30%.Repairing efficiency is 30 days.Using the removal efficient of polypropylene combination electrode is 42%, higher by 18% than common graphite electrode remediation efficiency.Concrete outcome sees attached list 1.
Oil content before and after subordinate list 1 combination electrode is handled
The preparation present embodiment electrode used therein material of graphite combination electrode is a graphite, preparation growth 20cm, and diameter is the graphite electrode of 1cm.The polypropylene oil suction cotton is the thick white oil absorbent material of commercially available 1.5mm; Offer the circular hole that a plurality of diameters are 0.5cm on the oil absorbent material surface; With PU glue oil absorbent material is bonded in the graphite electrode top layer, graphite electrode can be contacted with soil, realize the function of conduction; Graphite electrode bare area after the said coating be have the space the cotton area of polypropylene oil suction 70%, it is subsequent use to dry the back.
The contaminated soil that present embodiment adopts is the 50mg/g contaminated by diesel oil soil of preparation.Repair the result and see attached list 2.The diesel oil clearance reaches 62%, and is higher by 26% than ordinary electrode clearance.Removal effect obviously improves.
Diesel oil content before and after subordinate list 2 combination electrodes are handled
The preparation of graphite combination electrode: present embodiment electrode used therein material is a graphite, preparation growth 20cm, and diameter is the graphite electrode of 1cm.The polypropylene oil suction cotton is the thick white oil absorbent material of commercially available 1.5mm; Offer the circular hole that a plurality of diameters are 0.5cm on the oil absorbent material surface; With PU glue oil absorbent material is bonded in the graphite electrode top layer, graphite electrode can be contacted with soil, realize the function of conduction; Graphite electrode bare area after the said coating be have the space the cotton area of polypropylene oil suction 55%, it is subsequent use to dry the back.
In the oil-polluted soils of 50mg/g, add oil degradation bacteria, degradation bacteria is Arthrobacter globiformis (Arthrobacter globiformis), and the dosage that is added in the soil is 0.01mL/g.Repair after 30 days, the clearance of maximum oil is the experimental group of having added oil degradation bacteria, and clearance is 64%.
Oil content before and after subordinate list 3 combination electrodes are handled
| Group | Handle | Oil content before handling | Handle back oil content | Processing time (my god) |
| Control group | Do not have | 5％ | 4.8％ | 30 |
| Experimental group 1 | Common graphite electrode+oil degradation bacteria | 5％ | 3.2％ | 30 |
| |
Polypropylene combination electrode+oil degradation bacteria | 5％ | 2.5％ | 30 |
| |
Polypropylene combination electrode+oil degradation bacteria | 5％ | 1.8％ | 30 |
Embodiment 4
The preparation of stainless steel double composite electrode: present embodiment electrode used therein material is a stainless steel, long 50cm, the stainless steel electrode of diameter 5cm.The polypropylene oil suction cotton is the thick white oil absorbent material of commercially available 1.5mm; Offer the circular hole that a plurality of diameters are 0.5cm on the oil absorbent material surface; With PU glue oil absorbent material is bonded in the stainless steel electrode top layer, stainless steel electrode can be contacted with soil, realize the function of conduction; Stainless steel electrode bare area after the said coating be have the space the cotton area of polypropylene oil suction 60%, it is subsequent use to dry the back.
Contain 5% contaminated by diesel oil soil and pile up growth 2m, wide 2m, the earthwork of high 50cm, with the combination electrode insertion contaminated soil two ends of preparation, distance is 50cm between adjacent two electrodes, and be 30 days repair time, and the common stainless steel conductive electrode is as control group.The diesel oil clearance reaches 66%, and the result sees table 4.
Diesel oil content before and after subordinate list 4 combination electrodes are handled
| Group | Handle | Diesel oil content before handling | Handle back diesel oil content | Processing time (my god) |
| Control group | Do not have | 5％ | 4.8％ | 30 |
| Experimental group 1 | The common stainless steel electrode | 5％ | 2.8％ | 30 |
| |
The polypropylene combination electrode | 5％ | 1.7％ | 30 |
Claims (7)
1. polypropylene complex function electrode is characterized in that: it is cotton that the complex function electrode is that electrode surface coats the polypropylene oil suction that has the space.
2. by the described polypropylene complex function of claim 1 electrode, it is characterized in that: offer the circular hole that a plurality of diameters are 0.5-1.0cm on the said polypropylene oil suction cotton.
3. by claim 1 or 2 described polypropylene complex function electrodes, it is characterized in that: the bare area that said surface coats the electrode of the polypropylene oil suction cotton that has the space is the 50%-70% that has the cotton area of polypropylene oil suction in space.
4. by the described polypropylene complex function of claim 1 electrode, it is characterized in that: said electrode is the inertia conductive electrode.
5. by the described polypropylene complex function of claim 4 electrode, it is characterized in that: said electrode is graphite electrode, stainless steel electrode or platinum electrode.
6. the application of the described polypropylene complex function of claim 1 electrode is characterized in that: said polypropylene complex function electrode is used for the electronic reparation of organic polluted soil.
7. press the application of the described polypropylene complex function of claim 6 electrode; It is characterized in that: said polypropylene complex function electrode is added be located at the contaminated soil two ends; Under electronic repairing condition; Through the cotton effect of the polypropylene oil suction that coats on the electrode, organic pollution is adsorbed onto near the combination electrode zone, and then realizes effectively removing.
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| CN201110439187.1A CN102513342B (en) | 2011-12-23 | 2011-12-23 | Polypropylene composite functional electrode and application thereof |
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| CN201110439187.1A CN102513342B (en) | 2011-12-23 | 2011-12-23 | Polypropylene composite functional electrode and application thereof |
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| CN102513342A true CN102513342A (en) | 2012-06-27 |
| CN102513342B CN102513342B (en) | 2015-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551662A (en) * | 2019-09-25 | 2019-12-10 | 天津科技大学 | Arthrobacter strain ZJ-H and application thereof |
Citations (6)
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| US5586213A (en) * | 1992-02-05 | 1996-12-17 | Iit Research Institute | Ionic contact media for electrodes and soil in conduction heating |
| RU2177379C1 (en) * | 2001-02-09 | 2001-12-27 | Липатов Валерий Васильевич | Method of bioelectric cleaning of ground to remove organic contaminations |
| WO2002002875A1 (en) * | 2000-07-05 | 2002-01-10 | Newcastle University Ventures Limited | Geosynthetic structure |
| CN101007267A (en) * | 2006-12-22 | 2007-08-01 | 南京大学 | Process for regenerating of in-situ electricity of adsorption resin |
| CN201776276U (en) * | 2010-08-30 | 2011-03-30 | 河海大学 | Contaminated soil in-situ repairing device |
| CN102225426A (en) * | 2011-03-14 | 2011-10-26 | 哈尔滨工业大学 | Method for electrically remedying soil polluted by petroleum |
-
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Patent Citations (6)
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|---|---|---|---|---|
| US5586213A (en) * | 1992-02-05 | 1996-12-17 | Iit Research Institute | Ionic contact media for electrodes and soil in conduction heating |
| WO2002002875A1 (en) * | 2000-07-05 | 2002-01-10 | Newcastle University Ventures Limited | Geosynthetic structure |
| RU2177379C1 (en) * | 2001-02-09 | 2001-12-27 | Липатов Валерий Васильевич | Method of bioelectric cleaning of ground to remove organic contaminations |
| CN101007267A (en) * | 2006-12-22 | 2007-08-01 | 南京大学 | Process for regenerating of in-situ electricity of adsorption resin |
| CN201776276U (en) * | 2010-08-30 | 2011-03-30 | 河海大学 | Contaminated soil in-situ repairing device |
| CN102225426A (en) * | 2011-03-14 | 2011-10-26 | 哈尔滨工业大学 | Method for electrically remedying soil polluted by petroleum |
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| 马建伟等: "利用电动技术强化有机污染土壤原位修复研究", 《环境工程学报》 * |
Cited By (1)
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| CN110551662A (en) * | 2019-09-25 | 2019-12-10 | 天津科技大学 | Arthrobacter strain ZJ-H and application thereof |
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| CN102513342B (en) | 2015-01-07 |
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