CN106734173A - Soil/solid waste pollution environmental protection repair system and restorative procedure - Google Patents
Soil/solid waste pollution environmental protection repair system and restorative procedure Download PDFInfo
- Publication number
- CN106734173A CN106734173A CN201710026504.4A CN201710026504A CN106734173A CN 106734173 A CN106734173 A CN 106734173A CN 201710026504 A CN201710026504 A CN 201710026504A CN 106734173 A CN106734173 A CN 106734173A
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- electrode
- soil
- room
- solid waste
- power supply
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Classifications
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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
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of soil/solid waste pollution environment-friendly disposal system and processing method, including：Power supply, first electrode room, second electrode room, treatment region；Power supply is connected with first electrode and second electrode in first electrode room and second electrode room respectively；Treatment region is used to fill the soil/solid waste for needing to be processed；First electrode room is cylindrical structural, and second electrode room is the loop configuration coaxial with first electrode room, and its circular first electrode room is set；Power supply sets switching switch, allows hand over itself and first electrode and the connection polarity of second electrode；According to the contaminant ion polarity that removal is needed in soil/solid waste, the connection polarity of Switching power and first electrode and second electrode makes the contaminant ion of the needs removal in electro reclamation radially be moved to second electrode room direction.
Description
Technical field
It is related to rehabilitating soil/solid waste the present invention relates to a kind of field of Environment Protection, when especially, is transformed into innoxious material
The system and method for the reparation of material.
Background technology
Solid waste refers to the solid and gunk of discarding in production, life activity（The dirt that for example urban life is produced
Red mud that sewage sludge, aluminium industry are produced and, the biomass waste that produces in electroplating wastewater processing sludge and agricultural production etc.）With
And the solid particulate matter that Mining Market discharge is emitted from waste water, waste gas（Such as chromium slag, the mine tailing containing heavy metal）.
Substantial amounts of organic pollution, heavy metal are usually contained in solid waste, solid waste is banked up and landfill, not only accounts for meeting
Use substantial amounts of soil.And harmful components therein can also contaminated soil, can not only change the soil texture of script, but also meeting
Adverse effect is produced to soil soil property.
Solid waste, particularly hazardous solid waste, by weathering, drench with rain, and produce high temperature, malicious water or other reactions,
The microorganism and animal in soil can be killed, the activity of edaphon is reduced, and composition and structure in soil can be changed, caused
It is contaminated soil.
Repair process is carried out for the pollution that soil/solid waste is caused, the major issue of general concern is had become.It is existing
The restorative procedure of some soil/solid waste includes：Physical method, chemical method, associated with biological prosthetic and various methods
Processing method.Wherein, electric repairing technique is a kind of emerging recovery technique, its by passing to direct current in contaminated soil,
There is the electrochemical reactions such as electromigration, electrodialysis and electrophoresis in pollutant, contaminant transportation is gone out soil in soil, so as to reach
Remove the purpose of pollutant.
During the electro reclamation of soil/solid waste, contaminant ion can be enriched with transition process, be blocked
Soil aperture, prevents the further migration and removal of pollutant.
The content of the invention
The present invention proposes a kind of soil/solid waste pollution environment-friendly disposal system, can solve the problem that the above-mentioned of prior art
Problem.
As one aspect of the present invention, there is provided a kind of soil/solid waste pollution environment-friendly disposal system, including：Power supply,
First electrode room, second electrode room, treatment region；First electrode room and second electrode room accommodate working solution, the power supply point
Do not electrically connected with first electrode and second electrode in first electrode room and second electrode room；The treatment region is used to fill to be needed
Pollute the soil/solid waste for the treatment of, its pass through separate layer respectively with first electrode room and second electrode room every point
From；The first electrode room is cylindrical structural, and the first electrode includes many electrodes, and its circular first electrode chamber axis sets
Put；The second electrode room is the loop configuration coaxial with first electrode room, and its circular first electrode room is set, second electricity
Pole includes many electrodes, and ring is set in its circular second electrode room；The power supply includes that switching is switched, allow hand over it is described its with
The connection polarity of first electrode and second electrode；According to the contaminant ion pole that removal is needed in the soil/solid waste
Property, switch the power supply and first electrode and the connection polarity of second electrode, make the dirt of the needs removal in electro reclamation
Dye thing ion is radially moved to second electrode room direction.
Preferably, the switching switch includes the first single-pole double-throw switch (SPDT) and the second single-pole double-throw switch (SPDT).Described first
After many electrodes parallel connection of electrode, it is connected with the positive pole and negative pole of power supply respectively by the first single-pole double-throw switch (SPDT)；Described second
After the multiple electrodes parallel connection of electrode, it is connected with the positive pole and negative pole of power supply respectively by the second single-pole double-throw switch (SPDT).
Preferably, when the soil/pollutant of solid-waste ion is cation, regulation switching switch makes the positive pole of power supply
It is connected with first electrode, the negative pole of power supply is connected with second electrode；The soil/pollutant of solid-waste ion is anion
When, regulation switching switch makes the negative pole of power supply be connected with first electrode, and the positive pole of power supply is connected with second electrode.
Preferably, the cation includes Cd2+、Pb2+、Hg2+Etc. heavy metal ion；The anion includes Cr2O7 2-,
CrO4 2-, CrO2-。
Preferably, each electrode of first electrode and second electrode is respectively provided with current sensor, in electro reclamation institute
When the contaminant ion for needing removal is positive heavy metal ion, the electric current for passing through each electrode by monitoring control devices, according to
Monitoring result carries out drip washing for treatment region.
Preferably, the controller is calculated by the average value of all cathode currents, determines abnormal cathode, is filled by drip washing
Putting the soil/solid waste near for abnormal cathode carries out drip washing.
Preferably, if the electric current of particular cathode exceedes threshold value less than average value, judge that the particular cathode is abnormal cathode.
Preferably, the threshold value is 2.5 times of all cathode current mean square deviations.
Preferably, the soil/solid waste near the abnormal cathode is adjacent including centered on the abnormal cathode position
Two circular arc arc length of negative electrode are the circular arc of arc length, and the corresponding area of 1/2 radius is extended to the center of circle.
Preferably, filter paper of the separate layer including lucite that punch density is 30%~50% and attachment thereon.
Preferably, the separate layer includes rigid plastics expanded metals.
Preferably, the first electrode and second electrode are graphite electrode.
Preferably, the working solution is electrolyte.
Preferably, the electrolyte includes potassium nitrate, potassium phosphate, potassium chloride, one or more in sodium sulphate.
As another aspect of the present invention, there is provided the soil of above-mentioned soil/solid waste pollution environment-friendly disposal system
Processing method, comprises the following steps：（1）Need to contaminated soil/solid waste to be processed be filled in treatment region；（2）It is determined that dirty
Dye soil/solid waste needs the polarity of the soil pollutant ion repaired；（3）Soil/the solid waste for processing as needed
The polarity regulation switching switch of contaminant ion, enables the contaminant ion of the needs removal in electro reclamation radially
Moved to second electrode room direction；（4）Apply dc source for first electrode and second electrode, it is useless for soil/solid
Thing carries out electro reclamation；（6）After electro reclamation completion, apply with more than direct current for first electrode and second electrode
The AC power of the voltage of voltage, organic pollution heat treatment is carried out to soil/solid waste and is repaired.
Preferably, contaminated soil/solid waste to be processed to the need is pre-processed, and makes its water content before filling
Reach more than 10%.
Brief description of the drawings
Fig. 1 is the system structure diagram of the embodiment of the present invention.
The step of Fig. 2 is the agent, soil treatment method of embodiment of the present invention flow chart.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.And, should
Work as understanding, the feature not mutual exclusion of various embodiments described here, and can be combined and transformation mistake various
Exist in journey.
The soil of the embodiment of the present invention/solid waste pollution environmental protection repair system, referring to Fig. 1, including dc source 1, the
One electrode chamber 3, second electrode room 4, treatment region 5.Wherein, dc source 1 is used to provide electrical energy to pollutant repair system.
Dc source 1 is used for electro reclamation, and the voltage of dc source can be set according to the radical length for the treatment of region, makes the electricity for the treatment of region
Pressure gradient is 1~5V/cm, such as when processing section length for 10cm, the voltage of dc source 1 is set to 50V.AC power 2 is used
In heating renovation of organic pollution thing, its voltage for sufficiently high, at least above 2 times of dc source 1, it is possible to use 220V or
The voltage of person 380V.
First electrode room 3 is cylindrical structural, and first electrode 31 includes many electrodes, and it is circumferential along first electrode room 3
Set；Second electrode room 4 is the loop configuration coaxial with first electrode room 3, and its circular first electrode room 3 is set；Second electrode
41 are set around the inner ring of second electrode room 4.First electrode 31 and second electrode 41 are graphite electrode.First electrode room 3 and
The working solution of two electrode chambers 4 is electrolyte, and it can be potassium nitrate, and potassium phosphate, potassium chloride is a kind of or many in sodium sulphate
Kind.
Dc source 1 sets the first single-pole double-throw switch (SPDT) 11 and the second single-pole double-throw switch (SPDT) 12.First electrode 31 it is many
After the parallel connection of root electrode, it is connected with the positive pole and negative pole of dc source 1 respectively by the first single-pole double-throw switch (SPDT) 11；Second electrode 41
Multiple electrodes parallel connection after, be connected with the positive pole and negative pole of power supply respectively by the second single-pole double-throw switch (SPDT) 12.
Treatment region 5 is the annular housing region being arranged between first electrode room 3 and second electrode room 4, for filling
Needs pollute the soil/solid waste for the treatment of, and it is electric with first electrode room 3 and second respectively that it passes through separate layer 51 and 52
Pole room 4 is every separation.Separate layer can be including lucite that punch density is 30%~50% and attachment thereon filter paper, also may be used
Being such as rigid plastics expanded metals.Needs carry out pollute treatment soil/solid waste pollutant can be heavy metal sun from
Son pollution such as Cd2+、Pb2+、Hg2+Etc. heavy metal ion or anion such as Cr2O7 2-, CrO4 2-, CrO2-.Soil/
Before solid waste is filled into treatment region 5, it is pre-processed, its moisture content is reached more than 10%, it is preferred that to reach
More than 30%.
Before electro reclamation is carried out, according to the contaminant ion polarity that removal is needed in soil/solid waste, by first
The single-pole double-throw switch (SPDT) 12 of single-pole double-throw switch (SPDT) 11 and second, switching dc source 1 and first electrode 31 and second electrode 32
Connection polarity, makes the contaminant ion of the needs removal in electro reclamation radially be moved to the direction of second electrode room 4.Work as soil
Contaminant ion is cation such as Cd in earth/solid waste2+、Pb2+、Hg2+When, the first single-pole double-throw switch (SPDT) 11 of regulation and the
Two single-pole double-throw switch (SPDT)s 12 make the positive pole of power supply be connected with first electrode 31, and negative pole is connected with second electrode 41, make pollutant sun
Ion is moved to second electrode room 4；When soil/pollutant of solid-waste ion be anion for example when Cr2O7 2-, CrO4 2-, CrO2-,
Regulation the first single-pole double-throw switch (SPDT) 11 of switching and the second single-pole double-throw switch (SPDT) 12 make the negative pole of dc source 1 and first electrode 31
Connection, positive pole is connected with second electrode 41, anionic contaminant is moved to second electrode room 4.
By the setting of the above embodiment of the present invention, the second electrode room for making contaminant ion increase towards radial direction area
4 direction migration, so as to reduce enrichment of the contaminant ion in transition process, improves the property of contaminant transportation and treatment
Energy.
Preferably, each electrode of first electrode 31 and second electrode 41 is respectively provided with current sensor 6, is repaiied electronic
The contaminant ion of removal required for multiple is cation such as Cd2+、Pb2+、Hg2+When, pass through each electrode by monitoring control devices
Electric current, drip washing is carried out for treatment region according to monitoring result.Wherein, controller is calculated by the average of all cathode currents
Value, determines abnormal cathode, and drip washing is carried out for the soil/solid waste near abnormal cathode by elution device.Specifically, such as
When the electric current of fruit particular cathode exceedes threshold value, such as 2.5 times of all cathode current mean square deviations less than average value, judge that this is specific
Negative electrode is abnormal cathode.Wherein, the soil/solid waste near abnormal cathode include centered on the abnormal cathode position, phase
Adjacent two circular arc arc length of negative electrode are the circular arc of arc length, and the corresponding area of 1/2 radius is extended to the center of circle.
The agent, soil treatment method of the soil of the embodiment of the present invention/solid waste pollution environment-friendly disposal system, referring to Fig. 2, bag
Include following steps：（1）Need to contaminated soil/solid waste to be processed be filled in treatment region；（2）Determine contaminated soil/solid
Waste needs the polarity of the soil pollutant ion repaired；（3）The soil for processing as needed/pollutant of solid-waste ion
Polarity regulation switching switch, enables the contaminant ion of the needs removal in electro reclamation radially to second electrode room
Move in direction；（4）Apply dc source for first electrode and second electrode, electronic repairing is carried out for soil/solid waste
It is multiple.Preferably, step（1）Before, contaminated soil/solid waste to be processed to the need is pre-processed, and makes it before filling
Water content reaches more than 10%.
The above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations, although with reference to above-described embodiment pair
The present invention has been described in detail, and those of ordinary skill in the art should be understood：Still can be to of the invention specific
Implementation method is modified or equivalent, and without departing from any modification of spirit and scope of the invention or equivalent,
It all should cover in the middle of scope of the presently claimed invention.
Claims (7)
1. a kind of soil/solid waste pollution environment-friendly disposal system, including：Power supply, first electrode room, second electrode room, treatment
Area；First electrode room and second electrode room accommodate working solution, the power supply respectively with first electrode room and second electrode room
Interior first electrode and second electrode are electrically connected；The treatment region is used to fill the soil/solid for needing to carry out polluting treatment
Waste, it passes through separate layer respectively with first electrode room and second electrode room every separating；It is characterized in that：First electricity
Pole room is cylindrical structural, and the first electrode includes many electrodes, and its circular first electrode room is circumferentially disposed；Second electricity
Pole room is the loop configuration coaxial with first electrode room, and its circular first electrode room is set, and the second electrode includes many electricity
Pole, ring is set in its circular second electrode room；The power supply includes that switching is switched, allow hand over it is described its with first electrode and
The connection polarity of second electrode；According to the contaminant ion polarity that removal is needed in the soil/solid waste, switch the electricity
Source and first electrode and the connection polarity of second electrode, make the contaminant ion of the needs removal in electro reclamation radially
Moved to second electrode room direction.
2. soil according to claim 1/solid waste pollution environment-friendly disposal system, it is characterised in that：Gu the soil/
When body waste pollution thing ion is cation, regulation switching switch makes the positive pole of power supply be connected with first electrode, the negative pole of power supply
It is connected with second electrode；When the soil/pollutant of solid-waste ion is anion, regulation switching switch makes the negative pole of power supply
It is connected with first electrode, the positive pole of power supply is connected with second electrode.
3. soil according to claim 1 and 2/solid waste pollution environment-friendly disposal system, it is characterised in that：Described first
Electrode and second electrode are graphite electrode.
4. soil according to claim 1 and 2/solid waste pollution environment-friendly disposal system, it is characterised in that：The work
Liquid is electrolyte.
5. soil according to claim 4/solid waste pollution environment-friendly disposal system, it is characterised in that：The electrolyte
Including potassium nitrate, potassium phosphate, potassium chloride, one or more in sodium sulphate.
6. the agent, soil treatment method of the soil described in a kind of claim 1-5/solid waste pollution environment-friendly disposal system, including
Following steps：（1）Need to contaminated soil/solid waste to be processed be filled in treatment region；（2）Determine that contaminated soil/solid gives up
Thing needs the polarity of the soil pollutant ion repaired；（3）The pole of the soil for processing as needed/pollutant of solid-waste ion
Property regulation switching switch, enable the contaminant ion that needs are removed in electro reclamation radially to second electrode room side
To movement；（4）Apply dc source for first electrode and second electrode, electro reclamation is carried out for soil/solid waste.
7. agent, soil treatment method according to claim 6, it is characterised in that：Gu to need contaminated soil to be processed/
Body waste is pre-processed, make its before filling water content reach more than 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026504.4A CN106734173A (en) | 2017-01-14 | 2017-01-14 | Soil/solid waste pollution environmental protection repair system and restorative procedure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710026504.4A CN106734173A (en) | 2017-01-14 | 2017-01-14 | Soil/solid waste pollution environmental protection repair system and restorative procedure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570532A (en) * | 2017-10-17 | 2018-01-12 | 陆隽鹤 | A kind of method of electronic diffusion electrical heating coupling rehabilitating soil organic contamination |
| 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 |
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| CN104492796A (en) * | 2014-12-09 | 2015-04-08 | 江苏盖亚环境工程有限公司 | Electrokinetic remediation method of heavy metal contaminated soil |
| CN104941983A (en) * | 2015-05-27 | 2015-09-30 | 重庆大学 | Method for removing heavy metals in garbage incinerating flying ash through three-dimensional electrode |
| CN105312314A (en) * | 2015-11-05 | 2016-02-10 | 北京建工环境修复股份有限公司 | Repairing system and method for heavy metal-organic combined polluted soil and underground water |
| 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 |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284474A (en) * | 2011-05-16 | 2011-12-21 | 重庆大学 | Method and device for restoring polluted soil and treating solid wastes by utilizing electric energy |
| CN104492796A (en) * | 2014-12-09 | 2015-04-08 | 江苏盖亚环境工程有限公司 | Electrokinetic remediation method of heavy metal contaminated soil |
| CN104941983A (en) * | 2015-05-27 | 2015-09-30 | 重庆大学 | Method for removing heavy metals in garbage incinerating flying ash through three-dimensional electrode |
| CN105312314A (en) * | 2015-11-05 | 2016-02-10 | 北京建工环境修复股份有限公司 | Repairing system and method for heavy metal-organic combined polluted soil and underground water |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570532A (en) * | 2017-10-17 | 2018-01-12 | 陆隽鹤 | A kind of method of electronic diffusion electrical heating coupling rehabilitating soil organic contamination |
| 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 |
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Effective date of registration: 20180918 Address after: 102488 Beijing Fangshan District Liangxiang Triumph Street Jianshe Road 18 -D1948 Applicant after: Beijing Yi Zhi Lian Technology Co., Ltd. Address before: 150080 160 Syrian street, Xiangfang District, Harbin, Heilongjiang, 160 Applicant before: Zhang Qing |
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Application publication date: 20170531 |