CN108838202A - A kind of ecological soil restorative procedure - Google Patents
A kind of ecological soil restorative procedure Download PDFInfo
- Publication number
- CN108838202A CN108838202A CN201810905420.2A CN201810905420A CN108838202A CN 108838202 A CN108838202 A CN 108838202A CN 201810905420 A CN201810905420 A CN 201810905420A CN 108838202 A CN108838202 A CN 108838202A
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- Prior art keywords
- soil
- restorative procedure
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- suspension
- ecological
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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
-
- 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
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
-
- 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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
Abstract
The invention discloses a kind of ecological soil restorative procedures, include the following steps：Sieving processing, the soil for carrying out repair process will be needed to put into and carry out screening process in grading oscillating screen, soil A after being sieved, heating parsing, soil A is put into Thermal desorption furnace rotary kiln and carries out heating parsing, obtain blocky soil B, break process, blocky soil B is put into and carries out break process in crusher, and it is sieved, obtain soil C, electrolysis processing, soil C is put into electrolytic cell, suitable pure water is added, it is stirred into suspension, and electrode is inserted into suspension, carry out electrolysis processing, dehydration, suspension by electrolysis processing is staticly settled.The present invention decomposes the harmful components in soil, save the cost, while promoting the fertilizer efficiency of soil, is more in line with production and application demand, can control the content of microorganisms in soil, kills harmful bacteria.
Description
Technical field
The present invention relates to technical field of soil remediation more particularly to a kind of ecological soil restorative procedures.
Background technique
Soil remediation refers to the method transfer using physics, chemistry and biology, absorbs, the pollution in degradation and conversion soil
Object makes its concentration be reduced to acceptable level, or converts poisonous and hazardous pollutant to harmless substance.Basically,
The technical principle of contaminated soil remediation may include for：Change the existing forms of pollutant in the soil or the combination side with soil
Formula reduces its transportable property and bioavailability in the environment；Reduce the concentration of harmful substance in soil.
Existing soil remediation method is ineffective, and processing cost is higher, so now proposing a kind of ecological soil reparation
Method.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of ecological soil restorative procedures.
A kind of ecological soil restorative procedure proposed by the present invention, includes the following steps：
S1：Sieving processing, will need the soil for carrying out repair process to put into and carries out screening process in grading oscillating screen, obtain
Soil A after to screening；
S2：Heating parsing, soil A is put into Thermal desorption furnace rotary kiln and carries out heating parsing, obtains blocky soil B；
S3：Blocky soil B is put into and carries out break process in crusher, and is sieved by break process, obtains soil
C；
S4：Electrolysis processing, soil C is put into electrolytic cell, suitable pure water is added, is stirred into suspension,
And it is inserted into electrode to suspension, carry out electrolysis processing；
S5：Dehydration staticly settles the suspension by electrolysis processing, extracts supernatant out, then will precipitating
It puts into sludge de-watering device and is carried out dehydrating, obtain soil D；
S6：Soil D and straw, wheat straw, chips and bark etc., excrement etc. are mixed, and are sprinkled by biodegrade
Biodegradable strain, organic pollutant difficult to degrade in soil of degrading by the microbial action in composting process.
S7：Backfill processing will carry out exposure by biodegradable soil D, and then carry out backfill use.
Preferably, in the S2, the exhaust gas come out from Thermal desorption furnace rotary kiln then passes through the first water condenser and is cooled to
290-310 DEG C, mercury separator is entered back by the exhaust gas of the first water condenser, isolates granule dust and liquid mercury.
Preferably, in the S7, the exposure time is 2-3 days, and carries out content of microorganisms sampling observation to the soil after exposure.
Preferably, in the S4, the metal ion being precipitated on electrode is recycled, and pickling processes are carried out to electrode,
Finally rinsed well with pure water.
Preferably, range of the soil moisture at 460-600 DEG C, Thermal desorption furnace are kept in the S2 in Thermal desorption furnace rotary kiln
Pressure in rotary kiln is 75Pa-100Pa, and the temperature of the exhaust gas come out from Thermal desorption furnace rotary kiln is 550-590 DEG C.
Preferably, in the S5, the waste water of generation is handled by settling again, and by waste water by sewage disposal device
After discharge.
Having the beneficial effect that in the present invention：
1. cooperating traditional heating to parse by the electrolysis processing carried out, the metal ion in soil can be removed, promoted
Soil remediation effect, so that soil is more in line with using standard.
2. being decomposed using biodegradation technique to the harmful components in soil by the biodegrade carried out, save
Cost, while the fertilizer efficiency of soil is promoted, it is more in line with production and application demand, in conjunction with the exposure in backfill processing, can control soil
Content of microorganisms in earth, kills harmful bacteria.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of ecological soil restorative procedure proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1, a kind of ecological soil restorative procedure, includes the following steps：
S1：Sieving processing, will need the soil for carrying out repair process to put into and carries out screening process in grading oscillating screen, obtain
Soil A after to screening；
S2：Heating parsing, soil A is put into Thermal desorption furnace rotary kiln and carries out heating parsing, obtains blocky soil B；
S3：Blocky soil B is put into and carries out break process in crusher, and is sieved by break process, obtains soil
C；
S4：Electrolysis processing, soil C is put into electrolytic cell, suitable pure water is added, is stirred into suspension,
And it is inserted into electrode to suspension, carry out electrolysis processing；
S5：Dehydration staticly settles the suspension by electrolysis processing, extracts supernatant out, then will precipitating
It puts into sludge de-watering device and is carried out dehydrating, obtain soil D；
S6：Soil D and straw, wheat straw, chips and bark etc., excrement etc. are mixed, and are sprinkled by biodegrade
Biodegradable strain, organic pollutant difficult to degrade in soil of degrading by the microbial action in composting process.
S7：Backfill processing will carry out exposure by biodegradable soil D, and then carry out backfill use.
In the present invention, in S2, the exhaust gas come out from Thermal desorption furnace rotary kiln then passes through the first water condenser and is cooled to 290-
310 DEG C, mercury separator is entered back by the exhaust gas of the first water condenser, isolates granule dust and liquid mercury, in S7, when exposure
Between be 2-3 days, and to the soil progress content of microorganisms sampling observation after exposure, in S4, to the metal ion being precipitated on electrode into
Row recycling, and pickling processes are carried out to electrode, it is finally rinsed well with pure water, keeps soil in S2 in Thermal desorption furnace rotary kiln
Range of the temperature at 460-600 DEG C, the pressure in Thermal desorption furnace rotary kiln is 75Pa-100Pa, is come out from Thermal desorption furnace rotary kiln
The temperature of exhaust gas be 550-590 DEG C, in S5, the waste water of generation sets waste water by sewage treatment by settling again
It is discharged after standby processing.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of ecological soil restorative procedure, which is characterized in that include the following steps：
S1：Sieving processing, will need the soil for carrying out repair process to put into and carries out screening process in grading oscillating screen, sieved
Soil A after point；
S2：Heating parsing, soil A is put into Thermal desorption furnace rotary kiln and carries out heating parsing, obtains blocky soil B；
S3：Blocky soil B is put into and carries out break process in crusher, and is sieved by break process, obtains soil C；
S4：Electrolysis processing, soil C is put into electrolytic cell, suitable pure water is added, is stirred into suspension, and to
Suspension is inserted into electrode, carries out electrolysis processing；
S5：Dehydration staticly settles the suspension by electrolysis processing, extracts supernatant out, then puts into precipitating
It is carried out dehydrating into sludge de-watering device, obtains soil D；
S6：Soil D and straw, wheat straw, chips and bark etc., excrement etc. are mixed, and are sprinkled into biology by biodegrade
Degrading bacteria, organic pollutant difficult to degrade in soil of degrading by the microbial action in composting process.
S7：Backfill processing will carry out exposure by biodegradable soil D, and then carry out backfill use.
2. a kind of ecological soil restorative procedure according to claim 1, which is characterized in that in the S2, from Thermal desorption furnace
The exhaust gas that rotary kiln comes out then passes through the first water condenser and is cooled to 290-310 DEG C, by the first water condenser exhaust gas again into
Enter mercury separator, isolates granule dust and liquid mercury.
3. a kind of ecological soil restorative procedure according to claim 1, which is characterized in that in the S7, the exposure time is
2-3 days, and content of microorganisms sampling observation is carried out to the soil after exposure.
4. a kind of ecological soil restorative procedure according to claim 1, which is characterized in that in the S4, to being analysed on electrode
Metal ion out is recycled, and carries out pickling processes to electrode, is finally rinsed well with pure water.
5. a kind of ecological soil restorative procedure according to claim 1, which is characterized in that Thermal desorption furnace turns round in the S2
Range of the soil moisture at 460-600 DEG C is kept in kiln, the pressure in Thermal desorption furnace rotary kiln is 75Pa-100Pa, from Thermal desorption
The temperature for the exhaust gas that furnace rotary kiln comes out is 550-590 DEG C.
6. a kind of ecological soil restorative procedure according to claim 1, which is characterized in that in the S5, the waste water of generation
It is discharged after sewage disposal device is handled by settling again, and by waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810905420.2A CN108838202A (en) | 2018-08-10 | 2018-08-10 | A kind of ecological soil restorative procedure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810905420.2A CN108838202A (en) | 2018-08-10 | 2018-08-10 | A kind of ecological soil restorative procedure |
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| CN108838202A true CN108838202A (en) | 2018-11-20 |
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| CN201810905420.2A Pending CN108838202A (en) | 2018-08-10 | 2018-08-10 | A kind of ecological soil restorative procedure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807171A (en) * | 2019-03-28 | 2019-05-28 | 长沙埃比林环保科技有限公司 | A kind of method of soil remediation |
| CN110026426A (en) * | 2019-04-18 | 2019-07-19 | 刘长城 | Organic contamination place soil remediation method |
| CN110404953A (en) * | 2019-08-09 | 2019-11-05 | 周成宗 | A kind of soil remediation method |
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| JP2001231881A (en) * | 2000-02-24 | 2001-08-28 | Japan Atom Energy Res Inst | Method for decomposing pollutant similar to pcb, furan, and dioxin by using infrared laser |
| CN102513348A (en) * | 2011-12-15 | 2012-06-27 | 中国科学院南京土壤研究所 | Electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil |
| CN102527705A (en) * | 2012-01-18 | 2012-07-04 | 广州市金龙峰环保设备工程有限公司 | Soil remediation method |
| CN104307867A (en) * | 2014-09-05 | 2015-01-28 | 华北电力大学 | Polluted soil repairing device and method by adopting surface afflux electrical method and degrading bacteria |
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| CN206425335U (en) * | 2017-01-04 | 2017-08-22 | 江苏宏宇环境科技有限公司 | Heavy-metal contaminated soil processing equipment |
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2018
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| JP2001231881A (en) * | 2000-02-24 | 2001-08-28 | Japan Atom Energy Res Inst | Method for decomposing pollutant similar to pcb, furan, and dioxin by using infrared laser |
| CN102513348A (en) * | 2011-12-15 | 2012-06-27 | 中国科学院南京土壤研究所 | Electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil |
| CN102527705A (en) * | 2012-01-18 | 2012-07-04 | 广州市金龙峰环保设备工程有限公司 | Soil remediation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807171A (en) * | 2019-03-28 | 2019-05-28 | 长沙埃比林环保科技有限公司 | A kind of method of soil remediation |
| CN110026426A (en) * | 2019-04-18 | 2019-07-19 | 刘长城 | Organic contamination place soil remediation method |
| CN110404953A (en) * | 2019-08-09 | 2019-11-05 | 周成宗 | A kind of soil remediation method |
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Application publication date: 20181120 |