CN208662109U - A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil - Google Patents
A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil Download PDFInfo
- Publication number
- CN208662109U CN208662109U CN201820909734.5U CN201820909734U CN208662109U CN 208662109 U CN208662109 U CN 208662109U CN 201820909734 U CN201820909734 U CN 201820909734U CN 208662109 U CN208662109 U CN 208662109U
- Authority
- CN
- China
- Prior art keywords
- soil
- carbonization
- curing agent
- heavy
- organic matter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a kind of volatile organic matter-heavy-metal composite pollution soil carbonization restoration processing system, which includes: pretreatment unit, pollution monitoring device, stirring steam pressure device, mixing device, granulating device, carbonizing plant and collection and treatment device.It is successively worked by above-mentioned apparatus, complete the uniform blending of the volatilization of organic matter in combined pollution soil, Polluted Soil and curing agent and solidifies the flash carbonization of pollution soil particle；Ad hoc multiple monitoring devices and collection hop controller, according to the organic components and concentration and heavy metal component and content detected, the monitoring result of combination temperature and moisture content, to adjust heating time, curing agent volume and carbonization time, to be optimal working efficiency；Whole system has more procedure, system operatio is simple and direct, economic security, rate of working continuously height, the carbonization Polluted Soil pellet hardness produced is big, intensity is high, leaching rate is low, can be used as roadbed, airfield runway, engineering backfill material etc., has huge engineering construction meaning.
Description
Technical field
The utility model discloses a kind of volatile organic matter-heavy-metal composite pollution soil carbonization restoration processing system,
Belong to ecological environment and repairs field, the specifically processing to volatile organic matter in Polluted Soil and heavy metal contaminants.
Background technique
Toxic, the Harmful Residue and its pollution accumulation of the soil as non-renewable resources for the survival of mankind, in soil
Have become one of the environmental problem that current social all circles most pay close attention to.In processes of industrialization such as long-term mining, smelting, chemical industry
In, there is serious soil contamination problem in industrial and mining enterprises' land used of large area, and cannot be neglected speed and trend with one kind
It is spread in the whole nation.As Industry Structure adjustment and urbanization process quickly propel, the pollutions of some conveniently situations
Enterprise is forced to shut down or move, there is an urgent need to be planned to commercial land and residential land again, however left after enterprises remove
Contaminated site is exposed, such as heavy metal pollution place, organic contamination place and combined pollution place.Traditional contaminating enterprises
In long-term industrial processes, due to simple process, reagent complicated composition, also tend to that enterprise place is caused organic-weight occur
Metal combined contamination.Combined pollution soil refer to coexisted in soil there are two types of or two or more pollutants, and pollutant concentration reaches
It arrives or is more than national standard of soil environment quality or level, combined pollution soil is various informative, mainly includes organic combined pollution, again
Metal combined contamination and organic and heavy-metal composite pollution etc..If not carrying out effective repairing and treating to Polluted Soil, pollutant will lead to
It crosses the approach such as atmosphere, soil or underground water and endangers environment and human health, seriously hinder the pace of construction in city.Although domestic
Two kinds of independent Polluted Soil and different heavy-metal composite pollution soil are had conducted extensive research outside, propose corresponding reparation
Method and technology, but interaction and dirt due to the diversification and complication of Pollution In Soil, between organic matter and heavy metal
Dye the complex nature of the problem and uncertainty often aggravate pollution risk.
In recent years, both at home and abroad the peripheral doses of contaminated soil, chemical remediation and in terms of achieve quickly
Development, some technologies have been introduced into the commercialization practical stage and achieve remarkable result.In the common recovery technique of these types,
Peripheral doses are to remove pollutant by physical method, including excavate landfill, electro reclamation and pyrolysis adsorption technology etc.；Chemical remediation
It is the chemical property according to pollutant in soil and takes measures, including Soil leaching, curing/stabilizing etc.；Biological prosthetic finger
It by the contaminant degradation in soil is carbon dioxide, water or other nuisanceless substances by the metabolism of plant or microorganism,
Including phytoremediation and microorganism remediation.Organic contamination soil is taken out frequently with plant/microorganism remediation, oxidation/reduction, gas phase
It mentions, burn, chemical leaching and electro reclamation etc.；For heavy metal polluted soil frequently with chemical stabilization/fixation, phytoremediation, change
Learn elution and electro reclamation etc.；And for organic matter-heavy-metal composite pollution soil, traditional technology is frequently with phytoremediation, soil
Elution and electro reclamation etc..Phytoremediation is particularly adapted to the soil of the acid combined pollution based on heavy metal, its advantage is that cost
It is low, use scope is wide, but, long processing period low to degradation effect of organic compound；Chemical leaching has recovery rate high, heavy metal and organic
The advantages that object repairing effect is good has good repairing effect for hydroxide, oxide and carbonate of weak binding state etc.,
But eluent consumption is big, at high cost, is difficult to degrade in the soil, easily forms secondary pollution；Electro reclamation is in soil-liquid phase
It is inserted into electrode in system, is passed through that direct current is enriched with pollutant under electric field action to electrode transfer and that redox occurs is anti-
Answer, have many advantages, such as it is easy to operate, be suitable for low-permeability soil, but the technology depend on pollutant solubility and migration
Property, it is unsuitable for nonpolar organic matter, destructible soil texture.Being pyrolyzed adsorption technology is a kind of efficient soil restoring technology, is had
Easy to operate, the advantages that treatment effeciency is high, is suitable for the half volatiles such as mercury metallic pollution soil, treated changes of soil properties
Greatly, at high cost.Curing/stabilizing technology mainly passes through the chemical means such as absorption, precipitating, complexing, redox will be heavy metal-polluted
Dye object package is fixed up, and then reduces the transfer ability of pollutant, achievees the purpose that reduce pollutant diffusion, technology warp
Ji efficiently, is more suitable for intermediate pollution soil.For volatility organic contamination soil, gone frequently with chemical oxidization method and physics extraction process
It removes, but oxidation-reduction method easily causes secondary pollution during processing, the removal of physics extraction process is not thorough, the energy used is derived from electricity
Net, it is uncoordinated with natural environment, there is certain limitation.
About organic matter-heavy-metal composite pollution soil restorative procedure, many reports existing at present, such as patent of invention (application
It numbers 200910219623.7 and 200910219798.8) provides and a kind of utilizes EGTA citric acid+salicylic acid fortification of plants reparation
The polycyclic aromatic hydrocarbons contaminated native technology of cadmium-, but the method is only for a kind of heavy metal cadmium and to the removal rate of polycyclic aromatic hydrocarbon low (< 30%)；
Patent of invention (application number: 201010558286.7) provides a kind of use neopelex and two amber platinic acid of ethylenediamine
It elutes repairing organic-heavy-metal composite pollution soil method, but is only applicable to chlorobenzene and trichloro ethylene class organic pollutant,
And there are potential risks for ecological environment of the chemical agent used to Polluted Soil；Patent of invention (application number 201310129100.X) mentions
The photochemical method of a kind of repairing organic and heavy-metal composite pollution soil has been supplied, but need to continuously stir soil to increase Polluted Soil
Photocatalytic activity, process object are low concentration pesticide and herbicide, and are reduced at a low price or the heavy metal of simple substance still can be into
One step is oxidized to high volence metal ion；Patent of invention (application number: 201710053063.7) discloses a kind of heavy metal-organic matter
The recovery technique and technique of combined contamination soil, but this method needs build elution slope, using leacheate and microbial degradation, repair
It answers long in time limit and easily causes secondary pollution；Patent of invention (application number: 201010582316.8) discloses a kind of solar energy dystopy
The device of volatility organic contamination soil is repaired, but the device operating condition is shined upon and influenced, and heavy metal pollution is not suitable for
Soil.
Therefore, for China's organic matter-heavy-metal composite pollution place reparation demand and soil pollution feature, Ji Xian
Under the conditions of thering is experience technology to compare external backwardness, rehabilitation cost height, period length and low efficiency etc., before development contaminated site recycles
Repairing and treating, study efficiently quick and environmental-friendly combined pollution recovery technique it is very necessary, develop have independent intellectual
The combined pollution soil prosthetic device of property right is of great significance to China's Improvement of Ecological Environment and Community health's development.
Utility model content
Technical problem:
To overcome the shortcoming during existing combined pollution soil repair process, the purpose of the utility model is to provide
A kind of economical and efficient, removal rate be high, can scale application volatile organic matter-heavy-metal composite pollution soil carbonization repair place
Reason system, to realize that the volatile organic matter-recycling of heavy-metal composite pollution soil and carbon dioxide in engineering construction is sharp again
With.
Technical solution:
To achieve the goals above, we disclose a kind of carbonizations of volatile organic matter-heavy-metal composite pollution soil to repair
Multiple processing system, which is characterized in that the processing system includes: pretreatment unit, pollution monitoring device, stirring steam pressure device, mixes
Mixing device, granulating device, carbonizing plant and collection and treatment device；
Pollution monitoring device is provided in the pretreatment unit, pretreatment unit lower part is equipped with weighing hopper, weighing hopper
Lower part is equipped with inlet valve, and the bottom of weighing hopper and the top of stirring steam pressure device are tightly connected；
The lower part of the stirring steam pressure device is glued with water-bath absorber plate, and water-bath absorber plate bottom is equipped with electric boiling plate, stirs
Mix and be provided with temperature sensor and exhaust fan A at the top of steam pressure device, stirring steam pressure device side lower by conveying pipeline A with
Connection in the middle part of the side of mixing device, the conveying pipeline A are equipped with the first control valve and moisture transducer, and the exhaust fan A is logical
It crosses conduit to be connected with collection and treatment device A, the conduit between exhaust fan A and collection and treatment device A is equipped with the second control valve；
The top of the mixing device is equipped with curing agent storage powder tank, curing agent fluid reservoir and exhaust fan B, curing agent and stores up powder tank
Bottom and curing agent fluid reservoir bottom with the top of mixing device be tightly connected, curing agent store up powder tank top and solidification
The top of agent fluid reservoir is connected with air compressor machine, and the lower part that curing agent stores up powder tank is equipped with flow valve A, under curing agent fluid reservoir
Portion is equipped with flow valve B, is additionally provided with atomizer, and the bottom of atomizer and curing agent fluid reservoir at the top of the mixing device
Sealed connection, the flow valve A and flow valve B are respectively positioned on the outside of mixing device, and the exhaust fan B passes through at conduit and collection
It manages device A to be connected, the conduit between exhaust fan B and collection and treatment device A is equipped with third control valve；
The bottom of the mixing device is connect by conveying pipeline B with granulating device, and the conveying pipeline B is equipped with the 4th control
Valve processed；The granulating device is tightly connected by conveying pipeline C and carbonizing plant, the conveying pipeline C be equipped with the 5th control valve and
Kinetic pump；
Vibrating screen is equipped in the carbonizing plant, the top of carbonizing plant is close to water-bath absorber plate and electric boiling plate, shakes
Dynamic sieve is connected with discharge nozzle one end, and outlet valve is equipped on the discharge nozzle outside carbonizing plant, and the other end and storing of discharge nozzle are supported
Protection unit is tightly connected；The side of the carbonizing plant is tightly connected by snorkel and carbon dioxide gas tank, and on gas-guide tube
Equipped with pressure regulator valve；
The collection and treatment device B is connected by the sealed bottom of conduit and carbonizing plant, and conduit is equipped with the 6th control
Valve processed.
As a kind of improvement of the utility model, the pretreatment unit includes eliminating impurities isolating device and broken dress
It sets.
Another kind as the utility model improves, and it includes humidity detection instrument, soil that the pollution monitoring device, which is a kind of,
The combined device of earth Organic Pollution Monitoring instrument and monitoring heavy metal pollution instrument.
Another kind as the utility model improves, and the water-bath absorber plate is lower convex shape, and electric boiling plate is ring-type
Structure.
Another kind as the utility model improves, and the moisture transducer, flow valve A and flow valve B, which pass through, to be led
Line is connect with collection hop controller A.
Another kind as the utility model improves, the pollution monitoring device, electric boiling plate, temperature sensor and tune
Pressure valve passes through conducting wire and is connected with collection hop controller B.
Another kind as the utility model improves, bottom, water-bath absorber plate and the carbonization dress of the stirring steam pressure device
The top set is thermal conductivity and the good metal material of heat absorptivity.
The utility model has the advantages that
Compared with prior art, the utility model has the beneficial effect that
(1) ad hoc pollution monitoring device can monitor organic components and concentration and heavy metal in combined pollution soil
Heating time, curing agent volume and carbon is adjusted in conjunction with temperature monitoring device below and moisture content monitoring device in ingredient and content
Change the time, to be optimal working efficiency.
(2) ad hoc water-bath absorber plate, the waste heat that carbonization can be made full use of to generate, although volatility in first batch of combined pollution soil
The thermal desorption processing of organic matter is heated using electric boiling plate, but subsequent hot steam is mostly derived from heavy metal polluted soil carbonization
Heat production in the process, it is energy saving.
(3) air extractor and electric heating plate apparatus are had additional, can be evaporated and be waved according to the quantity of heat production and organic pollutant of carbonization
The minimum temperature of hair determines that the unlatching of electric heating plate apparatus improves to accelerate the extraction and reparation of volatile organic matter
The removal efficiency of volatile organic matter or half volatile organic contaminant.
(4) according to the practical moisture content of heavy metal polluted soil after TREATMENT OF VOCs, powdered curing agent is adjusted in real time
With grout curing dose of volume, the mixed processing of curing agent and heavy metal polluted soil is realized by mixing device；And according to granulation
Grain diameter, adjusts subsequent Carbonization Conditions, and realization is worked continuously.
(5) vibrating screen in carbonizing chamber can make solidification pollution soil particle sufficiently be carbonized, and Polluted Soil can be completed within a few hours
The pressure of cured granulate is carbonized, and improves the utilization efficiency of carbon dioxide and the uniformity of particle carbonization.
(6) can by combined pollution soil in volatile organic matter and heavy metal repair process be the good geotechnique of engineering properties
Material, for road, dam body, airfield runway, engineering backfill material etc..
(7) volatile organic matter in combined pollution soil extraction processing has been subjected to, carbon has been carried out to heavy metal contaminants
Change solidification, and be provided with the collection and treatment device of dust, exhaust gas in each link, avoids the pollution to atmosphere, while being carbonized and adding
Gu process fully absorbs great amount of carbon dioxide gas, whole process has the advantages that low-carbon environment-friendly and sustainable development.
(8) all the sensors are connected with collection hop controller, and structure height is unified, and systems linking is strong, easy to operate,
The good automated job of parameter configuration greatly reduces manpower burden, accelerates process and saves macroeconomic cost, the scope of application is more
Extensively.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of volatile organic matter-heavy-metal composite pollution soil carbonization restoration processing system；
In figure: 1, pretreatment unit, 2, pollution monitoring device, 3, weighing hopper, 4, inlet valve, 5, stirring steam pressure device, 6,
Water-bath absorber plate, 7, electric boiling plate, 8, temperature sensor, 9, conveying pipeline A, the 10, first control valve, 11, moisture transducer, 12,
Mixing device, 13, curing agent storage powder tank, 14, curing agent fluid reservoir, 15, flow valve A, 16, flow valve B, 17, collection hop controller
A, 18, atomizer, 19, exhaust fan A, the 20, second control valve, 21, collection and treatment device A, 22, air compressor machine, 23, third control
Valve, 24, exhaust fan B, 25, conveying pipeline B, the 26, the 4th control valve, 27, granulating device, the 28, the 5th control valve, 29, kinetic pump,
30, conveying pipeline C, 31, carbonizing plant, 32, vibrating screen, 33, carbon dioxide gas tank, 34, pressure regulator valve, 35, collection hop controller B, 36,
Outlet valve, 37, discharge nozzle, 38, storing curing means, the 39, the 6th control valve, 40, collection and treatment device B.
Specific embodiment
In the description of the present invention, it should be understood that belonging to "upper", "lower", "top", "bottom", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new
Type, rather than the particular orientation that must have in the device of indication or suggestion meaning, therefore should not be understood as the utility model
Limitation.Technological means of the utility model, creation characteristic, achieving the goal is readily apparent from understanding with effect in order to make, below
In conjunction with attached drawing, the utility model is further elaborated.
A kind of ectopic activities magnesia carbonization curing sludge soil processing system, which is characterized in that the processing system includes: pre-
Processing unit 1, pollution monitoring device 2, stirring steam pressure device 5, mixing device 12, granulating device 27, carbonizing plant 31 and collection
Processing unit；
Pollution monitoring device 2 is provided in the pretreatment unit 1,1 lower part of pretreatment unit is equipped with weighing hopper 3, metering
The lower part of bucket 3 is equipped with inlet valve 4, and the bottom of weighing hopper 3 and the top of stirring steam pressure device 5 are tightly connected；
The lower part of the stirring steam pressure device 5 is glued with water-bath absorber plate 6, and 6 bottom of water-bath absorber plate is equipped with electric boiling plate
7, the top of stirring steam pressure device 5 is provided with temperature sensor 8 and exhaust fan A19, and the side lower of stirring steam pressure device 5 is logical
It crosses in the middle part of conveying pipeline A9 and the side of mixing device 12 and connect, the conveying pipeline A9 is equipped with the first control valve 10 and moisture senses
Device 11, the exhaust fan A19 are connected by conduit with collection and treatment device A21, exhaust fan A19 and collection and treatment device A21 it
Between conduit be equipped with the second control valve 20；
The top of the mixing device 12 is equipped with curing agent storage powder tank 13, curing agent fluid reservoir 14 and exhaust fan B24, solidification
The bottom of powder tank 13 is stored up in agent and the bottom of curing agent fluid reservoir 14 is tightly connected with the top of mixing device 12, and curing agent stores up powder
The top of tank 13 and the top of curing agent fluid reservoir 14 are connected with air compressor machine 22, and the lower part that curing agent stores up powder tank 13 is equipped with stream
Valve A15 is measured, the lower part of curing agent fluid reservoir 14 is equipped with flow valve B16, and the top of the mixing device 12 is additionally provided with atomizer
18, and atomizer 18 is connect with the sealed bottom of curing agent fluid reservoir 14, the flow valve A15 and flow valve B16 are respectively positioned on
The outside of mixing device 12, the exhaust fan B24 are connected by conduit with collection and treatment device A21, exhaust fan B24 at collection
The conduit managed between device A21 is equipped with third control valve 23；
The bottom of the mixing device 12 is connect by conveying pipeline B25 with granulating device 27, and is set on the conveying pipeline B25
There is the 4th control valve 26；The granulating device 27 is tightly connected by conveying pipeline C30 and carbonizing plant 31, the conveying pipeline C30
It is equipped with the 5th control valve 28 and kinetic pump 29；
Vibrating screen 32, the top of carbonizing plant 31 and water-bath absorber plate 6 and electric boiling plate 7 are equipped in the carbonizing plant 31
It is close to, vibrating screen 32 is connected with one end of discharge nozzle 37, outlet valve 36 is equipped on the discharge nozzle 37 outside carbonizing plant 31, out
The other end and storing curing means 38 of expects pipe 37 are tightly connected；The side of the carbonizing plant 31 passes through snorkel and titanium dioxide
Carbon gas tank 33 is tightly connected, and gas-guide tube is equipped with pressure regulator valve 34；
The collection and treatment device B40 is connect by conduit with the sealed bottom of carbonizing plant 31, and conduit is equipped with the
Six control valves 39.
As a kind of improvement of the utility model, the pretreatment unit 1 includes eliminating impurities isolating device and is crushed
Device.
Another kind as the utility model improves, and it includes humidity detection instrument, soil that the pollution monitoring device 2, which is a kind of,
The combined device of earth Organic Pollution Monitoring instrument and monitoring heavy metal pollution instrument.
Another kind as the utility model improves, and the water-bath absorber plate 6 is lower convex shape, and electric boiling plate 7 is ring
Shape structure.
Another kind as the utility model improves, and the moisture transducer 11, flow valve A15 and flow valve B16 are equal
It is connect by conducting wire with collection hop controller A17.
Another kind as the utility model improves, the pollution monitoring device 2, electric boiling plate 7, temperature sensor 8
It is connected by conducting wire with collection hop controller B35 with pressure regulator valve 34.
Another kind as the utility model improves, bottom, water-bath absorber plate 6 and the carbonization of the stirring steam pressure device 5
The top of device 31 is thermal conductivity and the good metal material of heat absorptivity.
The carbonization restoration processing system implements operation through the following steps:
Firstly, by the plant roots in volatile organic matter to be processed-heavy-metal composite pollution soil in pretreatment unit 1
The sundries such as system, weeds, house refuse, solid refuse, rubble are purged by mechanical harrow nail or vibrating screen, and pollution soil block is led to
It crosses built-in crushing device and is broken into small particles of pollution soil, also pass through the humidity in pollution monitoring device 2 in pretreatment unit 1
Monitor and soil Organic Pollution Monitoring instrument come monitoring pollution soil's water content, Components of Organic Pollutants and concentration, pass through pollution
Monitoring heavy metal pollution instrument in monitoring device 2 monitors the ingredient and concentration of heavy metal；
Then, inlet valve 4, electric boiling plate 7, agitating device, exhaust fan A19 and the second control valve 20 are successively opened, according to
Single inlet amount is adjusted in the capacity of stirring steam pressure device 5, and pretreated combined pollution soil is transmitted by weighing hopper 3
Into stirring steam pressure device 5, and combined pollution soil is heated, is stirred and pumping process；It is stirred by the monitoring of temperature sensor 8
Mix the temperature in steam pressure device 5, minimum evaporating temperature determined according to the ingredient of organic pollutant, by organic pollutant concentration,
Temperature in Polluted Soil moisture content and stirring steam pressure device 5 determines heating time and pumpdown time, completes volatility in Polluted Soil
The evaporation separation and extraction of organic pollutant are handled, and generate heavy metal polluted soil；The organic matter evaporated of first batch of combined pollution soil
Reason relies primarily on the realization of 7 heated water bath absorber plate 6 of electric boiling plate, then in second batch and the organic matter evaporation process of batch later
The heat production that previous batch solidifies Polluted Soil carbonization is relied primarily on, when monitoring is lower than minimum temperature when organic matter volatilizees, automatically
Start electric boiling plate 7；
Then, the first control valve 10 is opened, the heavy metal polluted soil of generation is delivered to mixing device by conveying pipeline A9
In 12, the moisture content of heavy metal polluted soil is obtained by moisture transducer 11, according to the moisture content and a huge sum of money of heavy metal polluted soil
The ingredient of category and concentration come adjust powder curing agent, grout curing dose with the ratio of Polluted Soil, and respectively by flow valve A15 and
Flow valve B16 is adjusted, and powder curing agent, grout curing dose are carried out uniform stirring with heavy metal polluted soil, generate pollution
The equal mixing of soil, opens third control valve 23 and exhaust fan B24 later, is collected place to dust in mixing device 12 and exhaust gas
Reason；The powder curing agent is magnesia, calcium oxide or cement is one such or any two or more combination, the slurries
Curing agent is waterglass, magnesia slurry, calcium oxide slurries or cement grout is one such or any two or more combination；
Furthermore the 4th control valve 26 is opened, the equal mixing of the Polluted Soil of generation is delivered to granulating device by conveying pipeline B25
In 27, the granulation partial size of granulating device 27 is adjusted, grainy treatment is carried out to the equal mixing of Polluted Soil, produces Polluted Soil mixed
Grain；
Furthermore the carbonization of the mixed particle of Polluted Soil: opening the 5th control valve 28 and kinetic pump 29, and the Polluted Soil of generation is equal
Mixed particle is pumped on the vibrating screen 32 in carbonizing plant 31 by conveying pipeline C30, is then shut off the 5th control valve 28 and is started
Pressure regulator valve 32 carries out the carbonization of the mixed particle of Polluted Soil, generates to be carbonized and pollutes soil particle, according to solidification Polluted Soil in carbonisation
The size of grain diameter determines carbonization pressure and carbonization time；
Finally, the storage maintenance of carbonization pollution soil particle: outlet valve 36 is opened, by the carbonization Polluted Soil on vibrating screen 32
Grain is collected by discharge nozzle 37 into storing curing means 38, carries out continuing maintenance；After collecting carbonization pollution soil particle, open
6th control valve 39 completes first batch by the waste liquid and exhaust gas generated in collection and treatment device B40 absorption technique process
The carbonization repair process of volatile organic matter-heavy-metal composite pollution soil, the heat released in first batch Polluted Soil carbonisation
Amount is absorbed by water-bath absorber plate 6, and to second and later the organic pollutant in batch in step c separates；It will be through above-mentioned
The carbonization pollution soil particle obtained after step is recycled as roadbed, airfield runway or engineering backfill material.
Wherein, in implementation process, pass through the humidity detection instrument and soil Organic Pollution Monitoring instrument in pollution monitoring device 2
Come monitoring pollution soil's water content, Components of Organic Pollutants and concentration, passes through the monitoring heavy metal pollution in pollution monitoring device 2
Instrument monitors the ingredient and concentration of heavy metal, according to the main component and concentration of moisture content, volatile organic contaminant, after determining
The minimum temperature of continuous evaporation.The opening time of electric boiling plate 7, the pumpdown time of organic pollutant, powder curing agent and slurries are solid
Agent and the ratio of Polluted Soil, carbonization pressure and carbonization time etc. are by initial aqueous rate, organic pollutant in combined pollution soil
Ingredient and concentration, the moisture content of heavy metal polluted soil, the ingredient of heavy metal contaminants and content solidify the mixed particle of Polluted Soil
The influence of the factors such as partial size.
Specifically, when its boiling range and initial boiling point are higher, then required when evaporating when being extracted for the evaporation of organic pollutant
Heating temperature is higher, heating time is longer；Polluted Soil moisture content is higher, organic pollutant concentration is higher, then corresponding heating temperature
Degree is higher, heating time is longer, it is longer to extract the time.For the curing/stabilizing of heavy metal in Polluted Soil, work as heavy metal pollution
Soil's water content is higher, and required powder curing agent ratio is higher.For solidifying the carbonization of the mixed particle of Polluted Soil, partial size is got over
Greatly, then venting pressure is higher, carbonization time is longer.
The system is simple to operation, and overall flow is coherent efficiently, realizes filling for volatile organic matter in combined pollution soil
Divide evaporation to extract to be carbonized with the rapid curing of heavy metal contaminants, reduces organic pollutant and heavy metal pollution in whole process
Pollution of the object to ambient enviroment, generating carbonization pollution soil particle has the characteristics that hardness is big, intensity is high, leaching rate is low.
Embodiment 1
On the basis of aforesaid operations are implemented, when organic pollutant is gasoline, gasoline concentration in the soil body in combined pollution soil
For 4g/kg, when initial aqueous rate is about 20%, minimum temperature is 40 DEG C when setting electric boiling plate starts, i.e. temperature is lower than 40 DEG C
When, start electric boiling plate automatically, pumpdown time is 30 minutes, and the removal rate of organic pollutant is up to 95% or more.When in Polluted Soil
Gasoline after volatilization is handled, pollution soil's water content be 5%-7%, to heavy metal polluted soil addition powder curing agent be
0%, grout curing dose of addition is 25%, and grout curing dose of the ratio of mud is 2.0, and grout curing dose by waterglass, magnesia
And cement composition, three's component ratio are 20: 40: 40.As cured granulate partial size 3cm, in the case where pressure carbon dioxide is 200kPa,
Most of carbonization can be completed in 3 hours in carbonization.
Embodiment 2
On the basis of embodiment 1, when combined pollution soil in organic pollutant be benzene, in the soil body benzene concentration be 5g/kg, just
When beginning moisture content is about 25%, minimum temperature is 60 DEG C when setting electric boiling plate starts, i.e., when temperature is lower than 60 DEG C, opens automatically
Dynamic electric boiling plate, pumpdown time are 60 minutes, and the removal rate of organic pollutant is up to 90% or more.When the gasoline warp in Polluted Soil
After volatilization processing, pollution soil's water content is 8%-10%, and the powder curing agent to heavy metal polluted soil addition is 5%, addition
Grout curing dose be 20%, grout curing dose of the ratio of mud is 2.0, and powder curing agent is magnesia, calcium oxide and cement, three
Person's ratio is 40: 20: 40；Grout curing dose by waterglass, magnesia and cement composition, three's component ratio is 20: 40: 40.When
For cured granulate partial size in 5cm, in the case where pressure carbon dioxide is 200kPa, carbonization time needs 6 hours.
Embodiment 3
On the basis of embodiment 1, when in combined pollution soil organic pollutant be 1- dodecane in polycyclic aromatic hydrocarbon, and should
Organic concentration is 5g/kg, and when initial aqueous rate is about 30%, minimum temperature is 80 DEG C when setting electric boiling plate starts, i.e., warm
When degree is lower than 80 DEG C, start electric boiling plate automatically, pumpdown time is 90 minutes, and the removal rate of organic pollutant is up to 90% or more.
When the gasoline in Polluted Soil is after volatilization is handled, pollution soil's water content is 11%, solid to the powder of heavy metal polluted soil addition
Agent is 10%, and grout curing dose of addition is 15%, and grout curing dose of the ratio of mud is 2.0, and powder curing agent is magnesia
And cement, proportions 60: 40；Grout curing dose by waterglass, magnesia, calcium oxide and cement composition, four component ratios
It is 20: 30: 20: 30.When cured granulate partial size is in 7cm, in the case where pressure carbon dioxide is 400kPa, carbonization time needs 12 are small
When.
Embodiment 4
On the basis of embodiment 1, when organic pollutant is organic agricultural chemicals or insecticide in combined pollution soil, and this has
Machine object concentration is 7g/kg, and when initial aqueous rate is about 35%, minimum temperature is 100 DEG C when setting electric boiling plate starts, i.e., warm
When degree is lower than 100 DEG C, start electric boiling plate automatically, pumpdown time is 120 minutes, the removal rate of organic pollutant up to 85% with
On.When the gasoline in Polluted Soil is after volatilization is handled, pollution soil's water content is 17%, to the powder of heavy metal polluted soil addition
Curing agent is 20%, and grout curing dose of addition is 5%, and grout curing dose of the ratio of mud is 2.0, and powder curing agent is oxidation
Magnesium；Grout curing dose by magnesia and cement composition, the two component ratio is 50: 50.When cured granulate partial size is in 9cm, two
Carbon oxide pressure is under 400kPa, and carbonization time needs 12 hours.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is not it should be appreciated that the utility model is limited by examples detailed above, described in examples detailed above and specification only
It is to illustrate the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model is protected
Shield range is defined by appended claims and its equivalent.
Claims (7)
1. a kind of volatile organic matter-heavy-metal composite pollution soil carbonization restoration processing system, which is characterized in that the processing system
System includes: pretreatment unit, pollution monitoring device, stirring steam pressure device, mixing device, granulating device, carbonizing plant and collection
Processing unit；
Pollution monitoring device is equipped in the pretreatment unit, pretreatment unit lower part is equipped with weighing hopper, and the lower part of weighing hopper is set
There is inlet valve, the bottom of weighing hopper and the top of stirring steam pressure device are tightly connected；
The lower part of the stirring steam pressure device is glued with water-bath absorber plate, and water-bath absorber plate bottom is equipped with electric boiling plate, and stirring is steamed
Temperature sensor and exhaust fan A are provided at the top of pressure device, the side lower of stirring steam pressure device passes through conveying pipeline A and blending
Connection in the middle part of the side of device, the conveying pipeline A are equipped with the first control valve and moisture transducer, and the exhaust fan A is by leading
Pipe is connected with collection and treatment device A, and the conduit between exhaust fan A and collection and treatment device A is equipped with the second control valve；
The top of the mixing device is equipped with curing agent storage powder tank, curing agent fluid reservoir and exhaust fan B, curing agent and stores up the bottom of powder tank
Portion and the bottom of curing agent fluid reservoir are tightly connected with the top of mixing device, and curing agent stores up top and the curing agent storage of powder tank
The top of flow container is connected with air compressor machine, and the lower part that curing agent stores up powder tank is equipped with flow valve A, and the lower part of curing agent fluid reservoir is set
There is flow valve B, atomizer, and the sealed bottom of atomizer and curing agent fluid reservoir are additionally provided at the top of the mixing device
Connection, the flow valve A and flow valve B are respectively positioned on the outside of mixing device, and the exhaust fan B is by conduit and collects processing dress
It sets A to be connected, the conduit between exhaust fan B and collection and treatment device A is equipped with third control valve；
The bottom of the mixing device is connect by conveying pipeline B with granulating device, and the conveying pipeline B is equipped with the 4th control
Valve；The granulating device passes through conveying pipeline C and carbonizing plant is tightly connected, and the conveying pipeline C is equipped with the 5th control valve and moves
Power pump；
Vibrating screen is equipped in the carbonizing plant, the top of carbonizing plant is close to water-bath absorber plate and electric boiling plate, vibrating screen
It is connected with discharge nozzle one end, outlet valve is equipped on the discharge nozzle outside carbonizing plant, the other end and the storing maintenance of discharge nozzle fills
Set sealed connection；The side of the carbonizing plant is tightly connected by snorkel and carbon dioxide gas tank, and gas-guide tube is equipped with
Pressure regulator valve；
The collection and treatment device B is connected by the sealed bottom of conduit and carbonizing plant, and conduit is equipped with the 6th control valve.
2. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is characterized by: the pretreatment unit includes eliminating impurities isolating device and crushing device.
3. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is characterized by: it includes humidity detection instrument, soil Organic Pollution Monitoring instrument and heavy metal that the pollution monitoring device, which is a kind of,
The combined device of contamination monitor.
4. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is characterized by: the water-bath absorber plate is lower convex shape, electric boiling plate is cyclic structure.
5. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is connect it is characterized by: the moisture transducer, flow valve A and flow valve B pass through conducting wire with collection hop controller A.
6. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is characterized by: the pollution monitoring device, electric boiling plate, temperature sensor and pressure regulator valve pass through conducting wire and set controls
Device B is connected.
7. a kind of volatile organic matter according to claim 1-heavy-metal composite pollution soil carbonization restoration processing system,
It is characterized by: being thermal conductivity and heat absorption at the top of the bottom of the stirring steam pressure device, water-bath absorber plate and carbonizing plant
The good metal material of property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820909734.5U CN208662109U (en) | 2018-06-08 | 2018-06-08 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820909734.5U CN208662109U (en) | 2018-06-08 | 2018-06-08 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208662109U true CN208662109U (en) | 2019-03-29 |
Family
ID=65823810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820909734.5U Expired - Fee Related CN208662109U (en) | 2018-06-08 | 2018-06-08 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208662109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555011A (en) * | 2018-06-08 | 2018-09-21 | 南京林业大学 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
| CN111438170A (en) * | 2020-03-27 | 2020-07-24 | 生态环境部南京环境科学研究所 | Laboratory soil screening and harmful gas purification circulating device |
-
2018
- 2018-06-08 CN CN201820909734.5U patent/CN208662109U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555011A (en) * | 2018-06-08 | 2018-09-21 | 南京林业大学 | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil |
| CN108555011B (en) * | 2018-06-08 | 2023-06-27 | 南京林业大学 | Carbonization remediation treatment system for volatile organic compound-heavy metal composite contaminated soil |
| CN111438170A (en) * | 2020-03-27 | 2020-07-24 | 生态环境部南京环境科学研究所 | Laboratory soil screening and harmful gas purification circulating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108672489A (en) | A kind of carbonization restorative procedure of volatile organic matter-heavy-metal composite pollution soil | |
| CN204052353U (en) | Skid-mounted type composite soil prosthetic device | |
| CN104759463A (en) | Organic-polluted soil restoration method | |
| CN104190698B (en) | The restorative procedure of a kind of high load capacity heavy metal pollution place clayed soil | |
| CN105013811A (en) | Preparation and application for heavy metal chromium contaminated soil remediation material | |
| CN108555011A (en) | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil | |
| CN208662109U (en) | A kind of carbonization restoration processing system of volatile organic matter-heavy-metal composite pollution soil | |
| CN106391688A (en) | System and method for restoring organic matter-heavy metal composite polluted soil through straw | |
| CN102517447A (en) | Processing method for utilizing heavy metal to restore plant residues | |
| CN103056157A (en) | Repairing method and device for mercury-polluted soil by using low-temperature pyrolysis treatment | |
| CN110076185A (en) | A kind of method of remediating heavy metal and polycyclic aromatic hydrocarbon composite pollution soil | |
| CN203541071U (en) | Mechanochemical Harmless Treatment Device for Heavy Metal Contaminated Soil | |
| CN111515235A (en) | Remediation system and remediation method for chemical leaching-thermal desorption of composite contaminated soil | |
| CN103170501A (en) | Preparation method of in-situ repair material for soil polluted by heavy metal chromium and application of material | |
| CN109731899A (en) | A kind of contaminated soil remediation method | |
| CN111097789A (en) | Soil remediation system | |
| CN205270328U (en) | Novel pollution soil stabilizing treatment device | |
| CN106799393B (en) | Low-temperature desorption device | |
| CN105513662B (en) | Nuclear power plant's radioactivity does treatment of wastes produced method | |
| CN113426816A (en) | Intelligent remediation system and remediation method for contaminated site | |
| CN109013686B (en) | Soil remediation device for soil polluted by organic matters | |
| CN208643668U (en) | A kind of original position soil thermal desorption steam extraction equipment | |
| CN202539178U (en) | Hot air gas phase extraction device for soil polluted by volatile organic matters | |
| CN206276718U (en) | A kind of system of utilization stalk repairing organic heavy-metal composite pollution soil | |
| CN214321293U (en) | Semi-automatic plasma soil prosthetic devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suqian De Wei new material Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000282 Denomination of utility model: Volatile organic compound-heavy metal composite contaminated soil carbonization restoration treatment system Granted publication date: 20190329 License type: Common License Record date: 20191119 Assignee: Suqian Dewei Fiberglass Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000281 Denomination of utility model: Volatile organic compound-heavy metal composite contaminated soil carbonization restoration treatment system Granted publication date: 20190329 License type: Common License Record date: 20191119 Assignee: Nanjing Boke New Material Industry Research Institute Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000283 Denomination of utility model: Volatile organic compound-heavy metal composite contaminated soil carbonization restoration treatment system Granted publication date: 20190329 License type: Common License Record date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20200608 |