CN106807735A - A kind of method of contaminated soil remediation system adopting recirculating and contaminated soil remediation - Google Patents
A kind of method of contaminated soil remediation system adopting recirculating and contaminated soil remediation Download PDFInfo
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- CN106807735A CN106807735A CN201710059337.3A CN201710059337A CN106807735A CN 106807735 A CN106807735 A CN 106807735A CN 201710059337 A CN201710059337 A CN 201710059337A CN 106807735 A CN106807735 A CN 106807735A
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- rotary furnace
- contaminated soil
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- soil
- ball mill
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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
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a kind of contaminated soil remediation system adopting recirculating, the contaminated soil remediation system adopting recirculating includes drying section and ball mill, the drying section includes rotary furnace 8 and combustion chamber 7, the combustion chamber 7 is enclosed within leading portion of the rotary furnace 8 near feeding device 2, the afterbody of rotary furnace 8 is provided with drawing mechanism 10, and the drawing mechanism 10 is connected with the charging aperture 12 of the ball mill.The method of contaminated soil remediation, methods described includes, pretreated contaminated soil is delivered in rotary furnace 8, to dry and carry out ball milling after removing water；Preferably, the temperature of the heating is 80 110 DEG C；It is highly preferred that drying time of the contaminated soil in rotary furnace 8 is 0.2 5h；The time that the contaminated soil carries out ball milling is 0.2 5h.
Description
Technical field
The present invention relates to field of Environment Protection, in particular to a kind of contaminated soil remediation system adopting recirculating and contaminated soil remediation
Method.
Background technology
Industry is developed rapidly and highlights problem of environmental pollution, especially the unreasonable disposal of hazardous waste cause soil and
The pollution of underground water.The features such as soil pollution has disguise and is difficult to Reversibility, direct or indirect can be detrimental to health,
Other environmental problems will also be caused.At present, pollutant is commonly divided into four classes by its property：Organic pollution, heavy metal, radiation
Property element and pathogenic microorganism, wherein organic pollution and heavy metal pollution and its combined pollution place are the most universal.
In general, for different pollutants, recovery technique is also different.For organic polluted soil, conventional technology
Including thermal desorption, gas phase extracting, chemical oxidation, microorganism remediation etc.；For heavy-metal contaminated soil, common technology have solidification-
Stabilisation, electronation, Soil leaching, phytoremediation etc..It is most of at present for organic matter and heavy-metal composite pollution place
Technical matters needs substep to repair, and heavy metal and organic pollution take different recovery techniques to be repaired successively.Thus
Cause the reparation for heavy metal and organic compound contaminated place, process is cumbersome and quantities is big, and processing cost is too high.
Research and application of the mechanochemical reaction particularly mechanical ball mill technology during soil remediation are more and more.Pass through
Abrading-ball and the shock and friction of soil storeroom, can make the pollution components in soil occur physically or chemically to change, and then make dirt
Dye soil is repaired.For heavy metal and organic pollution, mechanical ball mill can be with repair process.Heavy metal contaminants are in machine
There is migration and chemical conversion, generation stabilization, the metallic compound of hypotoxicity, so as to reach solidification-stabilization in tool mechanical milling process
The effect of change.Organic pollution can occur chain rupture, open loop, dehalogenation reaction, generation small molecule, hypotoxicity in Mechanical Milling Process
Product, so as to obtain repair process.But, mechanical attrition method there is also its drawback, drying is had to pass through before soil ball milling and is removed
Water, and mechanical milling process noise is excessive, these all limit the application of mechanical ball mill technology.
In view of this, it is special to propose the present invention.
The content of the invention
The first object of the present invention is to provide a kind of contaminated soil remediation system adopting recirculating, and described soil repair system has energy
Enough steps complete to dry the process with ball milling, and whole repair system turns into an entirety, and pretreated contaminated soil can lead to
Cross repair system of the invention quickly and efficiently to repair, without producing unnecessary waste gas.
The second object of the present invention is to provide a kind of method of repairing polluted soil, and the method is by using of the invention
Soil repair system carries out the reparation of contaminated soil, and while larger process amount is kept, mechanical milling process is without heating, and it is right only to need
Soil is dried or greenhouse turns over throwing and air-dries, and energy consumption and financial cost are greatly reduced.
In order to realize above-mentioned purpose of the invention, spy uses following technical scheme：
One aspect of the present invention is related to a kind of contaminated soil remediation system adopting recirculating, and the contaminated soil remediation system adopting recirculating includes drying
Portion and ball mill, the drying section include rotary furnace 8 and combustion chamber 7, and the combustion chamber 7 is enclosed within the rotary furnace 8 near pan feeding
The leading portion of device 2, the afterbody of rotary furnace 8 is provided with drawing mechanism 10, the charging aperture 12 of the drawing mechanism 10 and the ball mill
Connection.
Preferably, the rotary furnace 8 is supported by one group of rolling ring 4, and the rolling ring 4 can adjust height to cause the revolution
Stove 8 is horizontal by 0-15 degree angle.
Preferably, the rotary furnace 8 is provided with rotary furnace gear 9, and the rotary furnace gear 9 is used to drive the rotary furnace
8 carry out axial-rotation；Preferably, the rotary furnace 8 is respectively arranged at two ends with the first air inlet 11 and the first gas outlet 3.
Preferably, the bottom of the combustion chamber 7 is provided with fuel gas inlet 6, and the top of the combustion chamber 7 is provided with gas outlet
5。。
Preferably, the ball mill is horizontal drum type ball mill, it is preferred that the horizontal drum type ball mill includes rolling
Cylinder, the support rolling ring 13 for supporting roller, the driving gear 17 for driving roller rotation and the abrading-ball 15 being arranged in roller, institute
State roller and be provided with the second air inlet 19, the second gas outlet 14 and discharging opening 18, it is preferable that a diameter of 10- of the abrading-ball 15
200mm。
Preferably, the combined contamination soil repair system also includes emission-control equipment 20, the emission-control equipment
It is connected with the gas outlet of the rotary furnace and/or the gas outlet of ball mill, it is preferred that the emission-control equipment is that activated carbon is inhaled
Attached case.
Another aspect of the present invention is related to the method for contaminated soil remediation, methods described to include, by pretreated pollution
Soil is delivered in rotary furnace 8, and ball milling is carried out after drying water removal；
Preferably, the temperature of the heating is 80-110 DEG C；
It is highly preferred that drying time of the contaminated soil in rotary furnace 8 is 0.2-5h；The contaminated soil carries out ball
The time of mill is 0.2-5h.
Preferably, when carrying out the ball milling, abrading-ball gross mass is 10 with soil quality ratio:1~1:1, it is preferable that ball milling mistake
Ball-milling additive is added in journey, it is highly preferred that the ball-milling additive includes CaO, SiO2, one or more in NaOH and Mg.
Preferably, the pretreatment includes air-drying and screening,
Preferably, after the completion of the pretreatment, the particle diameter of contaminated soil is less than 25mm.
Preferably, the flue gas for being produced in the drying and mechanical milling process is discharged from the first gas outlet 3 and the second gas outlet 14
Afterwards, collect to emission-control equipment and processed.
Compared with prior art, beneficial effects of the present invention are：
1) soil repair system of the invention has repairing effect for heavy metal contaminants and organic pollution, can be simultaneously
One step treatment, it is to avoid the technological process that the combination of multi-step multiple technologies brings is long and complexity, the big defect of quantities；
2) in carrying out the repair process of contaminated soil using soil repair system of the invention, Mechanical Milling Process and tradition
Organically-pollutedsoil soil remediation method such as thermal desorption etc. compare, while larger process amount is kept, mechanical milling process without heating,
Soil need to only be dried or greenhouse is turned over throwing and air-dried, energy consumption and financial cost are greatly reduced；
3) organic tail gas are produced in whole processing procedure, to there is preferable dehalogenation effect containing halogen organic, while energy
The generation of dioxin is enough avoided, to environment non-secondary pollution.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described.
Fig. 1 is the schematic diagram of contaminated soil remediation system adopting recirculating of the invention.
Reference：
The first gas outlets of 1- hopper 2- feeding devices 3-
4- rolling ring 5- gas outlet 6- fuel gas inlets
7- combustion chambers 8- rotary furnace 9- rotary furnace gears
10- drawing mechanisms 11- the first air inlet 12- charging apertures
The second gas outlets of 13- ball mill rolling ring 14- 15- abrading-balls
16- roller 17- ball mill gear 18- discharging openings
19- the second air inlet 20- emission-control equipments
Specific embodiment
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
The object of the present invention is achieved like this：As shown in figure 1, being heavy metal of the invention and organic compound contaminated soil
Earth recovery technique process flow diagram.In figure through excavate, air-dry, screening after particle diameter<The contaminated soil of 25mm enters feed hopper 1
Afterwards, it is delivered in the furnace chamber of low temperature rotary furnace 8 through feeding device 2, wherein, feeding device 2 is preferably conveying worm, rotary furnace
8 support by support rolling rings 4, by adjusting two relative altitudes of rolling ring 4,0~15 degree of 8 tiltable of rotary furnace, and in motor
Rotated under the drive of the rotary furnace gear 9 of drive.
Moved to discharge end into the contaminated soil in furnace chamber is slow under the rotation of rotary furnace, turned by adjusting rotary furnace
The residence time of speed and tilt adjustable section material in stove is in 0.2~5h.The leading portion of rotary furnace 8 is located in the combustion chamber 7 of overcoat, day
Right gas is heated into combustion chamber 7 and the generation high-temperature flue gas that burn by fuel gas inlet 6 to the outer wall of rotary furnace 8, reaches in-furnace temperature
To 80~110 DEG C.
The tail gas that combustion chamber 7 produces is discharged through gas outlet 5, post-treated rear discharge up to standard.When contaminated soil passes through back
During converter 8, the drying and dehydrating in stove leaves rotary furnace and enters drum-type ball mill 16 through feed hopper 12 through drawing mechanism 10.For
Accelerate antecedent soil moisture speed in rotary furnace 8, inversely can be passed through air from air inlet 11, carry vapor and volatile organic matter
Tail gas discharged by gas outlet 3, it is post-treated it is up to standard after discharge.Balling drum is supported by ball mill rolling ring 13, and in electricity
Rotated under the drive of the ball mill gear 17 that machine drives.Dry soil into balling drum 16 exists with the abrading-ball 15 in roller
There is violent shock, friction in the rotation process of roller, pollutant therein occur physics, chemical change and obtain repair place
Reason.A diameter of 10~the 200mm of abrading-ball 15 in roller, abrading-ball gross mass is 10 with soil quality ratio:1~1:1.Soil is in roller
Lower constantly forward movement is rotated, Ball-milling Time control is discharged and returned through the soil up to standard after ball milling in 0.2~5h by outlet 18
Fill out.The a small amount of waste gas produced in mechanical milling process carries the second gas outlet 14 by the air stream entered from the second gas outlet 19, through entering
Emptying after the treatment of one step is qualified.Gas port 3 and 14 discharge waste gas through charcoal absorption case 20 process it is up to standard after empty.Dry dirt
Before dye soil enters ball mill 16, according to the difference of pollutant kind, a certain amount of ball-milling additive can be mixed by hopper 12, these
Auxiliary agent includes but is not limited to CaO, SiO2, NaOH, Mg etc..
One aspect of the present invention provides a kind of contaminated soil remediation system adopting recirculating, and the contaminated soil remediation system adopting recirculating includes dry
Dry portion and ball mill, the drying section include rotary furnace 8 and combustion chamber 7, and the combustion chamber 7 is enclosed within the rotary furnace 8 and is close to
Expect the leading portion of device 2, the afterbody of rotary furnace 8 is provided with drawing mechanism 10, the charging aperture of the drawing mechanism 10 and the ball mill
12 connections.
In a preferred embodiment of the present invention, the feeding device is conveying worm, from the soil that hopper 1 enters
Earth particle delivers into rotary furnace 8 and is heated by conveying worm.
In a preferred embodiment of the present invention, the rotary furnace 8 is supported by one group of rolling ring 4, and the rolling ring 4 can be with
Regulation height is with so that the rotary furnace 8 is horizontal by 0-15 degree angle.
In a preferred embodiment of the present invention, the rotary furnace 8 is provided with rotary furnace gear 9, the rotary furnace
Gear 9 carries out axial-rotation for driving the rotary furnace 8；
In a preferred embodiment of the present invention, the rotary furnace 8 is respectively arranged at two ends with the He of the first air inlet 11
First gas outlet 3.
In a preferred embodiment of the present invention, gas outlet and air inlet are inversely set, i.e., the first air inlet 11 sets
Put in rotary furnace afterbody, and the first gas outlet 3 is arranged on rotary furnace front portion.
In a preferred embodiment of the present invention, the bottom of the combustion chamber 7 is provided with fuel gas inlet 6, the burning
The top of room 7 is provided with gas outlet 5.
In a preferred embodiment of the present invention, the ball mill is horizontal drum type ball mill,
In a preferred embodiment of the present invention, the horizontal drum type ball mill is including roller, for back-up roller
The ball mill rolling ring 13 of cylinder, the ball mill gear 17 for driving roller rotation and the abrading-ball 15 being arranged in roller 16, the roller
It is provided with the second air inlet 19, the second gas outlet 14 and discharging opening 18, it is preferable that a diameter of 10-200mm of the abrading-ball 15.
In a preferred embodiment of the present invention, the combined contamination soil repair system is also filled including exhaust-gas treatment
20 are put, the emission-control equipment is connected with the gas outlet of the rotary furnace and/or the gas outlet of ball mill, it is preferred that described
Emission-control equipment is charcoal absorption case.
Another aspect of the present invention provides a kind of method of contaminated soil remediation, and methods described includes, will pre-process
Contaminated soil afterwards is delivered in rotary furnace 8, and ball milling is carried out after drying water removal；
In a preferred embodiment of the present invention, the temperature of the heating is 80-110 DEG C；
In a preferred embodiment of the present invention, drying time of the contaminated soil in rotary furnace 8 is 0.2-
5h；The time that the contaminated soil carries out ball milling is 0.2-5h.
In a preferred embodiment of the present invention, when carrying out the ball milling, abrading-ball gross mass is with soil quality ratio
10:1~1:1, it is preferable that ball-milling additive is added in mechanical milling process, it is highly preferred that the ball-milling additive includes CaO, SiO2、
One or more in NaOH and Mg.
In a preferred embodiment of the present invention, the pretreatment includes air-drying and sieves, it is preferable that the pre- place
After the completion of reason, the particle diameter of contaminated soil is less than 25mm.
In a preferred embodiment of the present invention, the flue gas for being produced in the drying and mechanical milling process is from the first outlet
After mouth 3 and the second gas outlet 14 are discharged, collect to emission-control equipment and processed.
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition advised according to normal condition or manufacturer is carried out.Agents useful for same or the unreceipted production firm person of instrument, are
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
Certain heavy metal arsenic contaminated site, arsenic mean concentration is 122mg/kg in contaminated soil.Through air-drying, grain is obtained after screening
Footpath<The contaminated soil of 5mm, low temperature rotary furnace is sent into through conveying worm, and balling-drum is entered after 60min is dried at 105 DEG C.
Control to make abrading-ball be maintained at 6 with soil quality ratio into native speed:1~3:1, balling-drum rotating speed is 15r/min, soil ball milling
Time 60min, is analyzed to the soil sampling after treatment, according to the methods of 846 Method of US EPA SW 1312 to ball milling
Soil after before processing carries out leaching test, by arsenic concentration in ICP-OES analysis leachates, measures leaching before and after ball-milling treatment
Arsenic concentration is respectively 3.3mg/L and 0.03mg/L in liquid, reaches groundwater quality standard (GB/T 14848-93) Group III water quality
Standard, heavy metal in soil arsenic curing efficiency reaches 99.1%.
Embodiment 2
Certain heavy metal lead pollution place, lead mean concentration is 1120mg/kg in contaminated soil.Through air-drying, obtained after screening
Particle diameter<The contaminated soil of 5mm, low temperature rotary furnace is sent into through conveying worm, is turned into ball mill after 30min is dried at 110 DEG C
Cylinder.Control to make abrading-ball be maintained at 10 with soil quality ratio into native speed:1~1:1, balling-drum rotating speed is 10~15r/min,
Soil Ball-milling Time 30min, is analyzed to the soil sampling after treatment, according to the sides of 846 Method of US EPA SW 1312
Method carries out leaching test to the soil before and after ball-milling treatment, by lead concentration in ICP-OES analysis leachates, measures ball-milling treatment
Lead concentration is respectively 42mg/L and 0.01mg/L in front and rear leachate, reaches groundwater quality standard (GB/T 14848-93) II
Class water standard, curing efficiency reaches 99.9%.
Embodiment 3
Certain PCBs (Polychlorinated biphenyls) contaminated site, polychlorinated biphenyl congener total concentration is 830mg/kg in contaminated soil.Through
Air-dry, particle diameter is obtained after screening<After the contaminated soil of 2mm is mixed into a certain amount of auxiliary agent, low temperature rotary furnace is sent into through conveying worm,
Enter balling-drum after 5h is dried at 80 DEG C.Control to make abrading-ball be maintained at 6 with soil quality ratio into native speed:1~3:1, ball
Grinding machine rotating cylinder rotating speed is 20~40r/min, soil Ball-milling Time 5h min, to the soil sampling after treatment, dichloromethane ultrasound
Extract is purified according to US EPA 1668A standard methods after extraction, finally by GC-MS quantitative analyses, ball milling is measured
PCBs concentration is 9.1mg/kg in soil after treatment, and PCBs clearances reach 98.9%.
Embodiment 4
Certain PAHs (polycyclic aromatic hydrocarbon) contaminated site, polycyclic aromatic hydrocarbon total concentration is 130mg/kg in contaminated soil.Through air-drying, sieve
Particle diameter is obtained after point<After the contaminated soil of 2mm is mixed into a certain amount of auxiliary agent, low temperature rotary furnace is sent into through conveying worm, at 105 DEG C
Enter balling-drum after drying 60min.Control to make abrading-ball be maintained at 6 with soil quality ratio into native speed:1~3:1, ball mill
Rotating cylinder rotating speed is 20~40r/min, soil Ball-milling Time 60min, to the soil sampling after treatment, after dichloromethane ultrasonic extraction
According to the standard methods of US EPA 8270 by GC-MS quantitative analyses, measure after ball-milling treatment that PAHs total concentrations are in soil
0.65mg/kg, PAHs clearance reach 99.5%.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from of the invention
Many other changes and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of contaminated soil remediation system adopting recirculating, it is characterised in that the contaminated soil remediation system adopting recirculating includes drying section and ball mill,
The drying section includes rotary furnace (8) and combustion chamber (7), and the combustion chamber (7) is enclosed within the rotary furnace (8) near feeding device
(2) leading portion, the afterbody of rotary furnace (8) is provided with drawing mechanism (10), the charging of the drawing mechanism (10) and the ball mill
Mouth (12) connection.
2. soil repair system according to claim 1, it is characterised in that the rotary furnace (8) is propped up by one group of rolling ring (4)
Support, the rolling ring (4) can adjust height to cause the rotary furnace (8) horizontal by 0-15 degree angle.
3. soil repair system according to claim 1, it is characterised in that the rotary furnace (8) is provided with rotary furnace tooth
Wheel (9), the rotary furnace gear (9) carries out axial-rotation for driving the rotary furnace (8)；Preferably, the rotary furnace (8)
Be respectively arranged at two ends with the first air inlet (11) and the first gas outlet (3).
4. soil repair system according to claim 1, it is characterised in that the bottom of the combustion chamber (7) is provided with combustion gas
Entrance (6), the top of the combustion chamber (7) is provided with gas outlet (5).
5. soil repair system according to claim 1, it is characterised in that the ball mill is horizontal drum type ball milling
Machine, it is preferred that the horizontal drum type ball mill includes roller, the ball mill rolling ring (13) for supporting roller, drives roller
The ball mill gear (17) of rotation and the abrading-ball (15) being arranged in roller (16), the roller are provided with the second air inlet
(19), the second gas outlet (14) and discharging opening (18), it is preferable that a diameter of 10-200mm of the abrading-ball (15).
6. the soil repair system according to claim any one of 1-5, it is characterised in that the combined contamination soil reparation
System also includes emission-control equipment (20), the gas outlet of the emission-control equipment and the rotary furnace and/or ball mill
Gas outlet is connected, it is preferred that the emission-control equipment is charcoal absorption case.
7. the method for contaminated soil remediation, it is characterised in that methods described includes, pretreated contaminated soil is delivered to back
In converter (8), ball milling is carried out after drying water removal；
Preferably, the temperature of the heating is 80-110 DEG C；
It is highly preferred that drying time of the contaminated soil in rotary furnace (8) is 0.2-5h；The contaminated soil carries out ball milling
Time be 0.2-5h.
8. method according to claim 7, it is characterised in that when carrying out the ball milling, abrading-ball gross mass and soil quality
Than being 10:1~1:1, it is preferable that ball-milling additive is added in mechanical milling process, it is highly preferred that the ball-milling additive include CaO,
SiO2, one or more in NaOH and Mg.
9. method according to claim 7, it is characterised in that the pretreatment includes air-drying and sieves, it is preferable that described
After the completion of pretreatment, the particle diameter of contaminated soil is less than 25mm.
10. method according to claim 7, it is characterised in that the flue gas produced in the drying and mechanical milling process is from the
Behind one gas outlet (3) and the second gas outlet (14) discharge, collect to emission-control equipment and processed.
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| CN201710059337.3A CN106807735A (en) | 2017-01-24 | 2017-01-24 | A kind of method of contaminated soil remediation system adopting recirculating and contaminated soil remediation |
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| CN201710059337.3A CN106807735A (en) | 2017-01-24 | 2017-01-24 | A kind of method of contaminated soil remediation system adopting recirculating and contaminated soil remediation |
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| CN108097712A (en) * | 2017-12-20 | 2018-06-01 | 成都新柯力化工科技有限公司 | A kind of method that soil pollutant is removed using laser |
| CN109092847A (en) * | 2018-07-11 | 2018-12-28 | 中山大学 | The method that a kind of pair of waste printed circuit board nonmetallic ingredient is pre-processed and recycled |
| CN109226221A (en) * | 2018-11-22 | 2019-01-18 | 武汉理工大学 | The method of silica ball milling processing polycyclic aromatic hydrocarbon pollution |
| CN109290359A (en) * | 2018-09-29 | 2019-02-01 | 董方舟 | A kind of contaminated soil controlling device and its soil remediation method |
| CN111744609A (en) * | 2020-07-25 | 2020-10-09 | 陕西正元秦电环保产业有限公司 | Ball mill |
| CN114367530A (en) * | 2022-01-04 | 2022-04-19 | 上海第二工业大学 | Mechanochemical remediation method for heavy metal-POPs (persistent organic pollutants) composite contaminated soil |
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| CN109290359A (en) * | 2018-09-29 | 2019-02-01 | 董方舟 | A kind of contaminated soil controlling device and its soil remediation method |
| CN109226221A (en) * | 2018-11-22 | 2019-01-18 | 武汉理工大学 | The method of silica ball milling processing polycyclic aromatic hydrocarbon pollution |
| CN111744609A (en) * | 2020-07-25 | 2020-10-09 | 陕西正元秦电环保产业有限公司 | Ball mill |
| CN114367530A (en) * | 2022-01-04 | 2022-04-19 | 上海第二工业大学 | Mechanochemical remediation method for heavy metal-POPs (persistent organic pollutants) composite contaminated soil |
| CN114367530B (en) * | 2022-01-04 | 2023-09-22 | 上海第二工业大学 | Mechanochemical remediation method for heavy metal-POPs (pre-stressed organic acids) composite contaminated soil |
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Application publication date: 20170609 |