CN116256496B - Contaminated soil restoration test device - Google Patents
Contaminated soil restoration test device Download PDFInfo
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- CN116256496B CN116256496B CN202310539409.XA CN202310539409A CN116256496B CN 116256496 B CN116256496 B CN 116256496B CN 202310539409 A CN202310539409 A CN 202310539409A CN 116256496 B CN116256496 B CN 116256496B
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- 239000002689 soil Substances 0.000 title claims abstract description 105
- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 238000001514 detection method Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000005067 remediation Methods 0.000 claims abstract description 21
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 25
- 238000001223 reverse osmosis Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 5
- 238000002386 leaching Methods 0.000 abstract description 30
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 14
- 239000003480 eluent Substances 0.000 abstract description 7
- 230000015271 coagulation Effects 0.000 abstract description 6
- 238000005345 coagulation Methods 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000003900 soil pollution Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000010828 elution Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 20
- 239000000523 sample Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000004016 soil organic matter Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Remote Sensing (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Soil Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of polluted soil remediation, and particularly relates to a polluted soil remediation test device which comprises a ground, wherein a plurality of test columns with different lengths are fixedly inserted on the surface of the ground, round grooves are formed in the end faces of the test columns, two symmetrically arranged detection holes are formed in the lower ends of the side walls of the test columns, and a test mechanism main body is arranged on the ground. According to the invention, the coagulation degree of soil in each soil layer can be measured through an in-situ test mode, the waste of the eluent is reduced, the utilization sufficiency of the eluent is improved, the subsequent sufficiency of the soil elution and the removal rate of heavy metal pollutants can be improved, meanwhile, the accuracy of test results can be improved through soil humidity detection, the accurate sampling of the test after the leaching is convenient, and the phenomenon that the residual eluent cannot be decomposed to cause new soil pollution can be avoided as much as possible.
Description
Technical Field
The invention belongs to the technical field of polluted soil remediation, and particularly relates to a polluted soil remediation test device.
Background
With the increasing increase of soil pollution, the polluted soil has gradually threatened the physical health of people and the safety of ecological environment, so the treatment of the polluted soil is especially necessary, and before the polluted soil is restored, the polluted soil needs to be tested to determine a proper restoration scheme.
At present, an in-situ leaching method is a common method for treating polluted soil, which is characterized in that a leaching agent is mixed in the soil, heavy metal pollutants in the polluted soil are leached and discharged by using the flowing leaching agent, so that the effect of treating the polluted soil is achieved, when the polluted soil is tested, a soil sample is generally collected, and then a sample is mixed with a repairing agent and the leaching agent, so that the effect of removing the pollutants is observed, for example, the device for repairing the polluted soil is disclosed in the publication No. CN 212845370U.
However, in the in-situ leaching restoration method, the coagulation degree of soil is also related to leaching effect, excessive coagulation can affect the passing of the leaching agent, so that insufficient leaching is caused, and through a sampling mode, although the loosening degree of the soil can be observed, the soil sample is taken out and is different from the soil sample in an underground pressure environment, so that the coagulation degree reflected by the soil sample is not close to reality, meanwhile, the coagulation capacity of the soil in each soil layer is also different for different soil layers, when leaching restoration is carried out, uneven distribution of the leaching agent, such as loose soil close to the ground surface layer, more leaching agent throughput and more deeply coagulated soil are caused, and the leaching agent passes less, so that not only is waste of the leaching agent caused, but also insufficient heavy metal pollution removal in part of soil is caused.
Disclosure of Invention
The invention aims to solve the problems and provides a contaminated soil restoration test device.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the polluted soil remediation test device comprises a ground, wherein a plurality of test columns with different lengths are fixedly inserted into the surface of the ground, round grooves are formed in the end faces of the test columns, two symmetrically arranged detection holes are formed in the lower ends of the side walls of the test columns, and a test mechanism main body is arranged on the ground; the testing mechanism comprises a testing mechanism body, and is characterized in that the testing mechanism body comprises a detection rod, the detection rod is in a hollow arrangement, a piston block matched with a circular groove is fixedly sleeved at the lower end of the rod wall of the detection rod, two exhaust holes are formed in the position, below the piston block, of the side wall of the detection rod, a bottom plate is arranged on the ground, a machine box is fixedly arranged on the end face of the bottom plate, a connecting hose is fixedly spliced on the side wall of the machine box, the pipe end of the connecting hose is communicated with the detection rod in a sealing mode through a rotary sealing joint, an air inlet pipe is fixedly spliced at the upper end of the machine box, a pump body communicated with the air inlet pipe is fixedly arranged on the end face of the bottom plate, an air suction pipe is fixedly communicated with the suction end of the pump body, an air pressure detection mechanism is fixedly arranged inside the machine box, an ozone generation assembly is fixedly arranged at the position, above the air pressure detection mechanism, a taper sleeve is integrally formed in the lower end of the detection rod, a taper sleeve is fixedly connected with a drilling mechanism at the position, which is fixedly connected with the two exhaust holes, and a digital display ammeter is fixedly arranged on the end face of the bottom plate, and an auxiliary drain mechanism is jointly communicated with the test column.
Preferably, the air pressure detection mechanism comprises a piston plate which is arranged inside the machine box in a sliding manner, the piston plate is arranged at the lower side of the connecting hose, a group of springs are fixedly arranged between the piston plate and the inner bottom of the machine box, the lower end of the piston plate is fixedly connected with an insulating plate, the lower end of the insulating plate is fixedly provided with a resistor rod, the inner bottom of the machine box is fixedly connected with an insulating support, the top of the insulating support is fixedly connected with a conducting ring matched with the resistor rod, and the conducting ring is electrically connected with the digital display ammeter through a detachable conducting wire.
Preferably, the ozone generating assembly comprises a guide sleeve fixedly arranged in the machine box, a mounting plate is fixedly arranged on the lower side of the inner part of the guide sleeve, and an ozone lamp is fixedly arranged on the end face of the mounting plate.
Preferably, the humidity detection mechanism comprises an insulating fixed block arranged below the detection rod, the side wall of the insulating fixed block is in sealing and propping arrangement with the lower end of the detection rod, the side wall of the insulating fixed block is in threaded connection with the rod wall of the detection rod together with two fastening bolts, two conductive inserting rods are fixedly arranged at the lower end of the insulating fixed block, two through holes matched with the conductive inserting rods are formed in the side wall of the taper sleeve, the side wall of the insulating fixed block is in propping arrangement with the inner wall of the taper sleeve, and one of the conductive inserting rods is in electric connection with the digital display ammeter through a detachable lead.
Preferably, the drilling mechanism comprises a T-shaped support frame fixedly mounted inside the detection rod, two side walls of the T-shaped support frame are fixedly provided with miniature electric push rods, the output ends of the two miniature electric push rods are fixedly connected with connecting blocks, two end parts of the connecting blocks are fixedly connected with movable pipes, soft sleeves are fixedly arranged between the movable pipes and the rod walls of the detection rod, two side walls of the T-shaped support frame are fixedly connected with rotating shafts, spiral blades are fixedly sleeved on the shaft walls of the two rotating shafts, miniature motors are fixedly mounted on the side walls of the connecting blocks, and the output ends of the two miniature motors are in transmission connection with the same-side rotating shafts.
Preferably, the inside of water conservancy diversion cover is filled with heat conduction fluid, the inside of water conservancy diversion cover is fixed and is equipped with a plurality of electric bars, and each electric bar is evenly distributed setting about the axis of fender cover.
Preferably, the auxiliary liquid draining mechanism comprises a back suction hose fixedly inserted into the pipe wall of the air suction pipe, a first manual control valve is arranged at the position, located on the upper side of the back suction hose, of the air suction pipe, a circular pipe is fixedly inserted into the pipe wall of the air suction pipe, a second manual control valve is arranged in the circular pipe, a third manual control valve is arranged at the position, located on the upper side of the circular pipe, of the inner part of the air suction pipe, the back suction hose is detachably connected with the end part of the test column through a flange plate, a plurality of reverse osmosis holes are formed in the side wall of the test column, sealing waterproof cloth is paved on the ground, and the pipe end of the back suction hose penetrates through the sealing waterproof cloth.
Preferably, an annular groove is formed in the upper end of the inner wall of the test column, each reverse osmosis hole is formed in the annular groove, the groove wall of the annular groove is in threaded connection with a sealing stop sleeve, and a plurality of round holes communicated with the reverse osmosis holes are formed in the side wall of the sealing stop sleeve.
Compared with the prior art, the contaminated soil restoration test device has the advantages that: 1. through the mutual cooperation of a plurality of test posts, circular groove, detection hole, detection rod, piston block, exhaust hole, bottom plate, machine box, coupling hose, intake pipe, pump body, breathing pipe, atmospheric pressure detection mechanism and digital display ampere meter that set up, through at the soil surface that pollutes, through inserting a plurality of test posts, the cooperation is to corresponding soil in situ, let in gas, can react out the condensation degree of each soil layer inside soil through the mode of field test, thereby be convenient for follow-up pour into the right amount into respectively in each soil layer, the leaching agent of suitable pressure into, ensure that the dose distribution of leaching agent is suitable, reduce the waste of leaching agent, and improve the utilization sufficiency of leaching agent, simultaneously, through utilizing the test post, can also assist to pour into the leaching agent into the soil that pollutes, thereby can follow the abundant injection of a plurality of test points supplementary leaching agents.
2. Through the mutually supporting of ozone generation subassembly, heat conduction fluid and a plurality of electric bars that set up, can be in ventilating, to each polluted soil in situ lets in ozone and high temperature air, utilize ozone's strong oxidizing nature, can promote the antedisplacement of heavy metal to can improve the drip washing rate of getting rid of, and through high temperature air, can assist to improve the dryness of test point week department soil, do benefit to the passage of follow-up eluting agent, indirectly improve the drip washing effect.
3. Through the mutually supporting of taper sleeve and humidity detection mechanism that sets up, can test the humidity of each soil layer of contaminated soil to can assist the sufficiency that improves the soil condensation degree and detect, improve the accuracy of test result.
4. Through the drilling mechanism that sets up, can carry out accurate sample detection to each soil layer of contaminated soil after the drip washing to can be convenient for follow-up test verification to the drip washing effect.
5. Through the auxiliary liquid discharge mechanism, the residual leaching liquid in the soil can be discharged by using the test column after leaching, so that the phenomenon that the residual leaching liquid cannot be decomposed to cause new soil pollution can be avoided as much as possible.
Drawings
FIG. 1 is a schematic diagram of the structure of an example 1 of a contaminated soil remediation test apparatus provided by the present invention;
FIG. 2 is a schematic diagram of a connection structure between a test column and a main body of a test mechanism in an embodiment 1 of a contaminated soil remediation test apparatus according to the present invention;
FIG. 3 is a schematic diagram of a connection structure between a detection rod and a circular groove in a test column in an embodiment 1 of a contaminated soil remediation test apparatus provided by the invention;
FIG. 4 is a schematic diagram of the air pressure detection mechanism and ozone generating assembly of example 1 of a contaminated soil remediation test apparatus provided by the present invention;
FIG. 5 is a schematic view of the internal structure of the taper sleeve of example 1 of a contaminated soil remediation test apparatus provided by the present invention;
FIG. 6 is a schematic structural view of a drilling mechanism of example 1 of a contaminated soil remediation test apparatus according to the present invention;
FIG. 7 is a schematic structural view of an example 2 of a contaminated soil remediation test apparatus provided by the present invention;
fig. 8 is a schematic diagram of a connection structure between a test column and a sealing sleeve in an embodiment 2 of a contaminated soil remediation test apparatus provided by the invention.
In the figure: 1 ground, 2 test column, 3 round slot, 4 detection hole, 5 test mechanism main body, 6 detection rod, 7 piston block, 8 exhaust hole, 9 bottom plate, 10 machine box, 11 connecting hose, 12 intake pipe, 13 pump body, 14 intake pipe, 15 air pressure detection mechanism, 151 piston plate, 152 spring, 153 insulating plate, 154 resistance rod, 155 insulating support, 156 conducting ring, 16 ozone generating component, 161 guide sleeve, 162 mounting plate, 163 ozone lamp, 17 taper sleeve, 18 humidity detection mechanism, 181 insulating fixed block, 182 fastening bolt, 183 conducting insert rod, 184 through hole, 19 drilling mechanism, 191T shaped support frame, 192 miniature electric push rod, 193 connecting block, 194 active pipe, 195 soft sleeve, 196 rotating shaft, 197 spiral blade, 198 miniature motor, 20 digital display ammeter, 21 auxiliary liquid discharging mechanism, 211 back suction hose, 212 first manual control valve, 213 round pipe, 214 second manual control valve, 215 third manual control valve, 216 reverse osmosis hole, 217 sealing cloth, 22 conducting oil, 23 electric heating rod, 24, 25 sealing baffle sleeve, 26 round slot.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1:
as shown in fig. 1-6, a contaminated soil remediation test device comprises a ground 1, wherein a plurality of test columns 2 with different lengths are fixedly inserted on the surface of the ground 1, round grooves 3 are formed in the end faces of the test columns 2, two symmetrically arranged detection holes 4 are formed in the lower ends of the side walls of the test columns 2, and a test mechanism main body 5 is arranged on the ground 1;
the test mechanism main body 5 comprises a detection rod 6, the detection rod 6 is hollow, a piston block 7 matched with the circular groove 3 is fixedly sleeved at the lower end of the rod wall of the detection rod 6, two exhaust holes 8 are formed in the position, below the piston block 7, of the side wall of the detection rod 6, a bottom plate 9 is arranged on the ground 1, a machine box 10 is fixedly arranged on the end face of the bottom plate 9, a connecting hose 11 is fixedly spliced on the side wall of the machine box 10, the pipe end of the connecting hose 11 is communicated with the detection rod 6 in a sealing manner through a rotary sealing joint, an air inlet pipe 12 is fixedly spliced at the upper end of the machine box 10, a pump body 13 communicated with the air inlet pipe 12 is fixedly arranged on the end face of the bottom plate 9, an air suction pipe 14 is fixedly communicated with the suction end of the pump body 13, an air pressure detection mechanism 15 is fixedly arranged in the machine box 10, the air pressure detection mechanism 15 comprises a piston plate 151 arranged in the machine box 10 in a sliding manner, the piston plate 151 is disposed at the lower side of the connection hose 11, a set of springs 152 is fixedly disposed between the piston plate 151 and the inner bottom of the casing 10, an insulating plate 153 is fixedly connected to the lower end of the piston plate 151, a resistor rod 154 is fixedly connected to the lower end of the insulating plate 153, an insulating support 155 is fixedly connected to the inner bottom of the casing 10, a conducting ring 156 matched with the resistor rod 154 is fixedly connected to the top of the insulating support 155, the conducting ring 156 is electrically connected to the digital ammeter 20 through a detachable wire, after the resistor rod 154 moves down, the conducting ring 156 contacts with the conducting ring 156, a connection loop of the resistor rod 154, the conducting ring 156, the digital ammeter 20 and an external power supply is connected, and the deeper the insertion depth of the resistor rod 154 is, the resistance of the resistor rod 154 connected with the conducting ring 156 is reduced, and the current flowing into the digital ammeter 20 is increased.
The inside of box 10 is located the fixed mounting of position that atmospheric pressure detected mechanism 15 top has ozone generation subassembly 16, ozone generation subassembly 16 is including fixing the water conservancy diversion cover 161 that sets up in the box 10 inside, and the inside downside of water conservancy diversion cover 161 is fixed to be equipped with mounting panel 162, the terminal surface fixed mounting of mounting panel 162 has ozone lamp 163, can form high-voltage electric field discharge after the ozone lamp 163 circular telegram, thereby can produce ozone with the air ionization, through the strong oxidability of ozone, can react soil inside heavy metal, can oxidize soil organic matter, promote organic combined state heavy metal release, also can change the heavy metal of the bottom valence state of some difficult migration into the heavy metal of easy migration.
The inside of water conservancy diversion cover 161 is filled with heat conduction fluid 22, and the inside of water conservancy diversion cover 161 is fixed to be equipped with a plurality of electric bars 23, and each electric bar 23 is evenly distributed setting about the axis of keeping off the cover, through the heating of electric bar 23, can heat the inside air of entering soil, through the air of heating, can assist the inside heavy metal's of soil antedisplacement to improve the dryness of soil, thereby can do benefit to the passage of eluent, supplementary improvement drip washing effect.
The lower extreme integrated into one piece of probe rod 6 is provided with taper sleeve 17, and the inside of taper sleeve 17 is equipped with the humidity detection mechanism 18 with probe rod 6 sealing connection, humidity detection mechanism 18 is including setting up in the insulating fixed block 181 of probe rod 6 below, insulating fixed block 181 lateral wall is sealed the setting that offsets with the lower extreme of probe rod 6, and insulating fixed block 181 lateral wall and the pole wall common threaded connection of probe rod 6 have two fastening bolt 182, insulating fixed block 181's lower extreme fixed mounting has two electrically conductive inserted bars 183, two through-holes 184 with electrically conductive inserted bar 183 assorted are seted up to taper sleeve 17's lateral wall, the lateral wall of insulating fixed block 181 is the setting that offsets with the inner wall of taper sleeve 17, through detachable wire electric connection between one of them electrically conductive inserted bar 183 and the digital display ammeter 20, after digital display ammeter 20 is connected with electrically conductive inserted bar 183, cooperation outside power and soil, and can constitute the return circuit, and the greater when the soil's resistivity is less, and the soil humidity is more when the soil humidity is less, the soil's resistivity is big, thereby can assist the degree of condensing of reflecting soil.
The detection rod 6 is located two exhaust hole 8 department fixedly connected with and bores mechanism 19, the terminal surface fixed mounting of bottom plate 9 has digital display ampere meter 20, bore mechanism 19 includes fixed mounting in the inside T shape support frame 191 of detection rod 6, and the equal fixed mounting of two lateral walls of T shape support frame 191 has miniature electric push rod 192, and the equal fixedly connected with connecting block 193 of output of two miniature electric push rods 192, the equal fixedly connected with movable tube 194 of tip of two connecting blocks 193, and fixedly equipped with soft cover 195 between the pole wall of movable tube 194 and detection rod 6, the lateral wall of two T shape support frame 191 all rotates and is connected with pivot 196, and the fixed cover of the axle wall of two pivots 196 has helical blade 197, the lateral wall of two connecting blocks 193 all fixed mounting has miniature motor 198, and the output of two miniature motor 198 all is connected with homonymy pivot 196 transmission, helical blade 197 is when rotating, under the outer top effect of miniature electric push rod 192, can be with soil screw in movable tube 194 inside, the cooperation 195, can lead into the soil that takes into the inside of test column 2, thereby can take a sample soil.
The principle of operation of the present invention will now be described as follows: drilling a working well at the position of polluted soil, injecting a leaching agent into the polluted soil, assembling test columns 2 with proper lengths according to the working well, selecting proper test points on the polluted soil, and hammering each test column 2 into each test point through external hanging hammer equipment;
the bottom plate 9 of the test mechanism main body 5 is arranged on one side of the test column 2 to be tested, then the detecting rod 6 is inserted into the test column 2 on the side, after the detecting rod 6 cannot move, the connecting hose 11 is connected with the detecting rod 6 through the rotary sealing joint, the digital display ammeter 20 is connected with the conducting ring 156 through a detachable lead, and can form a connecting loop with the resistor rod 154 in cooperation with an external loop, then the pump body 13 is started, the pump body 13 sucks air through the air suction pipe 14, air can be introduced into the machine box 10 through the air inlet pipe 12, then the air is discharged into the circular groove 3 through the connecting hose 11 from the two air exhaust holes 8 on the detecting rod 6, finally the soil is blown into the soil through the two detecting holes 4 on the circular groove 3, if the coagulation degree of the soil is higher, the air permeability of the soil is worse, at this time, because the pump body 13 conveys quantitative air, but the air cannot be discharged from the soil rapidly, so the piston plate 151 in the extruder box 10 can move down under the action of air pressure, at this time, the resistance rod 154 can be in contact with the conductive ring 156, and the worse the air permeability of the soil is, the larger the air pressure in the machine box 10 is, the deeper the insertion depth of the resistance rod 154 is, so the resistance after the resistance rod 154 is connected with the conductive ring 156 is reduced, the current introduced into the digital ammeter 20 is increased, at this time, the current value displayed by the digital ammeter 20 is increased, namely the worse the air permeability of the soil is, the current value displayed by the digital ammeter 20 is larger;
while the gas is introduced, the ozone lamp 163 is started, the ozone lamp 163 can form high-voltage electric field discharge after being electrified, so that air can be ionized to generate ozone, part of the air can form ozone, heavy metals in soil can be reacted through the ozone, organic matters in the soil can be oxidized, the release of organic combined state heavy metals is promoted, part of low-valence state heavy metals difficult to migrate can be converted into high-valence state heavy metals easy to migrate, and the electric heating rod 23 is started to be matched with the heat conducting oil 22, so that the entering air can be heated, the release of the heavy metals in the soil can be promoted, the dryness of the soil can be improved, and the subsequent leaching agent can be facilitated to pass through;
before the pump body 13 is started, the digital ammeter 20 is connected with the corresponding conductive inserted bar 183 through a detachable lead, an external power supply and the other conductive inserted bar 183 are matched, a loop can be formed, when the soil humidity is high, the conductivity of the soil is high, the current in the digital ammeter 20 is high, when the soil humidity is low, the conductivity of the soil is low, the current in the digital ammeter 20 is low, so that the humidity of the soil can be measured according to the current value of the digital ammeter 20, the accuracy of testing the soil condensation degree is improved in an auxiliary manner, after the test of one test column 2 is finished, the detection rod 6 is taken out, the detection rod 6 with a proper length is reassembled, and the detection rod is moved to the position of the next test column 2 to continue the test detection of the next point;
after the leaching is finished for a period of time, the detecting rod 6 is reinserted into the test column 2, the micro electric push rod 192 is started, the same-side connecting block 193 can be pushed to move outwards at the moment, the micro motor 198 is started synchronously, the rotating shaft 196 can be driven to rotate, the spiral blade 197 can rotate, under the action of the spiral blade 197, the soil drill can be screwed into the movable tube 194, the soft cover 195 is matched, the drilled soil can be introduced into the detecting rod 6, after the micro electric push rod 192 works for 7 seconds, the micro electric push rod 192 is controlled to carry out return operation, after 7 seconds, the micro electric push rod 192 is stopped, the detecting rod 6 is pulled out from the test column 2, the fastening bolt 182 is unscrewed, the insulating fixing block 181 is separated from the detecting rod 6, and then the soil sample is taken out and brought back to a laboratory for test detection, so that the leaching effect can be measured.
Example 2:
as shown in fig. 7 to 8, this embodiment is different from embodiment 1 in that: the test column 2 is communicated with the air suction pipe 14 together and is provided with an auxiliary liquid discharging mechanism 21, the auxiliary liquid discharging mechanism 21 comprises a back suction hose 211 fixedly inserted into the pipe wall of the air suction pipe 14, a first manual valve 212 is arranged at the position, located at the upper side of the back suction hose 211, of the inner part of the air suction pipe 14, a circular pipe 213 is fixedly inserted into the pipe wall of the air suction pipe 12, a second manual valve 214 is arranged in the inner part of the circular pipe 213, a third manual valve 215 is arranged at the position, located at the upper side of the circular pipe 213, of the inner part of the air suction pipe 12, the back suction hose 211 is detachably connected with the end part of the test column 2 through a flange, a plurality of reverse osmosis holes 216 are formed in the side wall of the test column 2, a sealing waterproof cloth 217 is paved on the ground 1, and the pipe end of the back suction hose 211 penetrates through the sealing waterproof cloth 217.
When the embodiment works, after the leaching is finished, a sealing rain cloth 217 is paved on the ground 1, a back suction hose 211 is connected with the test column 2, then a first manual valve 212 on the air suction pipe 14 and a third manual valve 215 on the air inlet pipe 12 are closed, a second manual valve 214 on the circular pipe 213 is opened, the pump body 13 is started at the moment, the pump body 13 adsorbs the inside of the test column 2 through the air suction pipe 14 and the back suction hose 211, so that negative pressure is formed inside the test column 2, under the action of the sealing rain cloth 217, air pressure difference can be formed inside and outside soil, and under the action of the pressure difference, the residual leaching agent inside the soil at the periphery of the test column 2 can be pressed into the test column 2, so that the residual leaching agent inside the polluted soil can be avoided as much as possible.
The annular groove 24 has been seted up to the inner wall upper end of test post 2, and each reverse osmosis hole 216 all is located annular groove 24 department setting, the cell wall threaded connection of annular groove 24 has sealed fender cover 25, and a plurality of round holes 26 that are linked together with reverse osmosis hole 216 have been seted up to sealed fender cover 25's lateral wall, when carrying out the injection of supplementary eluent through test post 2, make each round hole 26 stagger with reverse osmosis hole 216 through rotatory sealed fender cover 25, can seal each reverse osmosis hole 216, thereby can prevent that the eluent from being discharged from reverse osmosis hole 216, improve the accuracy of eluent injection position.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a contaminated soil repair test device, includes ground (1), its characterized in that, the fixed grafting of surface of ground (1) has a plurality of test posts (2) that length is different, and the circular slot (3) have all been seted up to the terminal surface of each test post (2), and two symmetry setting's detection hole (4) have all been seted up to the lateral wall lower extreme of each test post (2), be equipped with test mechanism main part (5) on ground (1);
the test mechanism main body (5) comprises a detection rod (6), the detection rod (6) is in hollow arrangement, a piston block (7) matched with the circular groove (3) is fixedly sleeved at the lower end of the rod wall of the detection rod (6), two exhaust holes (8) are formed in the position, below the piston block (7), of the side wall of the detection rod (6), a bottom plate (9) is arranged on the ground (1), a machine box (10) is fixedly arranged on the end face of the bottom plate (9), a connecting hose (11) is fixedly spliced on the side wall of the machine box (10), the pipe end of the connecting hose (11) is in sealing communication with the detection rod (6) through a rotary sealing joint, an air inlet pipe (12) is fixedly spliced at the upper end of the machine box (10), an air suction pipe (14) is fixedly arranged at the end of the bottom plate (9), an air pressure detection mechanism (15) is fixedly arranged in the interior of the machine box (10), an ozone detection assembly (16) is fixedly arranged at the position, above the detection mechanism (15), an ozone detection assembly (17) is fixedly arranged at the upper end of the machine box (10), an ozone detection assembly (17) is fixedly arranged at the position above the air suction pipe (12), and the air suction pipe (13), the detection rod (6) is fixedly connected with drilling mechanisms (19) at two exhaust holes (8), a digital display ammeter (20) is fixedly arranged on the end face of the bottom plate (9), and the test column (2) and the air suction pipe (14) are jointly communicated with an auxiliary liquid discharging mechanism (21).
2. The polluted soil remediation test device according to claim 1, wherein the air pressure detection mechanism (15) comprises a piston plate (151) slidably arranged inside the machine box (10), the piston plate (151) is arranged at the lower side of the connecting hose (11), a group of springs (152) are fixedly arranged between the piston plate (151) and the inner bottom of the machine box (10), the lower end of the piston plate (151) is fixedly connected with an insulating plate (153), the lower end of the insulating plate (153) is fixedly connected with a resistor rod (154), the inner bottom of the machine box (10) is fixedly connected with an insulating support (155), the top of the insulating support (155) is fixedly connected with a conducting ring (156) matched with the resistor rod (154), and the conducting ring (156) is electrically connected with the digital display ammeter (20) through a detachable conducting wire.
3. The contaminated soil remediation test apparatus of claim 1, wherein the ozone generating assembly (16) includes a guide sleeve (161) fixedly arranged inside the casing (10), and a mounting plate (162) is fixedly arranged on the inner lower side of the guide sleeve (161), and an ozone lamp (163) is fixedly arranged on the end face of the mounting plate (162).
4. The polluted soil remediation test device according to claim 1, wherein the humidity detection mechanism (18) comprises an insulation fixing block (181) arranged below the detection rod (6), the side wall of the insulation fixing block (181) is in sealing and propping arrangement with the lower end of the detection rod (6), two fastening bolts (182) are connected with the side wall of the insulation fixing block (181) and the rod wall of the detection rod (6) in a threaded mode, two conductive inserting rods (183) are fixedly arranged at the lower end of the insulation fixing block (181), two through holes (184) matched with the conductive inserting rods (183) are formed in the side wall of the taper sleeve (17), the side wall of the insulation fixing block (181) is propped against the inner wall of the taper sleeve (17), and one of the conductive inserting rods (183) is electrically connected with the digital ammeter (20) through a detachable wire.
5. The contaminated soil remediation test device according to claim 1, wherein the drilling mechanism (19) comprises a T-shaped supporting frame (191) fixedly mounted inside a detection rod (6), two side walls of the T-shaped supporting frame (191) are fixedly provided with miniature electric push rods (192) respectively, output ends of the two miniature electric push rods (192) are fixedly connected with connecting blocks (193), end parts of the two connecting blocks (193) are fixedly connected with movable pipes (194), soft sleeves (195) are fixedly arranged between the movable pipes (194) and the rod walls of the detection rod (6), side walls of the two T-shaped supporting frames (191) are fixedly connected with rotating shafts (196), spiral blades (197) are fixedly sleeved on the shaft walls of the two rotating shafts (196), miniature motors (198) are fixedly mounted on the side walls of the two connecting blocks (193), and output ends of the two miniature motors (198) are in transmission connection with the same-side rotating shafts (196).
6. A contaminated soil remediation test apparatus according to claim 3, wherein the inside of the guide sleeve (161) is filled with heat conducting oil (22), a plurality of electric heating rods (23) are fixedly arranged in the guide sleeve (161), and the electric heating rods (23) are uniformly distributed about the axis of the guide sleeve (161).
7. The polluted soil remediation test device according to claim 1, wherein the auxiliary liquid draining mechanism (21) comprises a backflow hose (211) fixedly inserted into the pipe wall of the air suction pipe (14), a first manual valve (212) is arranged at the position, located on the upper side of the backflow hose (211), of the inner part of the air suction pipe (14), a circular pipe (213) is fixedly inserted into the pipe wall of the air suction pipe (12), a second manual valve (214) is arranged in the circular pipe (213), a third manual valve (215) is arranged at the position, located on the upper side of the circular pipe (213), of the inner part of the air suction pipe (12), the backflow hose (211) is detachably connected with the end part of the test column (2) through a flange, a plurality of backflow holes (216) are formed in the side wall of the test column (2), a sealing waterproof cloth (217) is paved on the ground (1), and the pipe end of the backflow hose (211) penetrates through the sealing waterproof cloth (217).
8. The contaminated soil remediation test apparatus of claim 7, wherein an annular groove (24) is formed in the upper end of the inner wall of the test column (2), each reverse osmosis hole (216) is formed in the annular groove (24), a sealing retaining sleeve (25) is in threaded connection with the groove wall of the annular groove (24), and a plurality of round holes (26) communicated with the reverse osmosis holes (216) are formed in the side wall of the sealing retaining sleeve (25).
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| CN202310539409.XA CN116256496B (en) | 2023-05-15 | 2023-05-15 | Contaminated soil restoration test device |
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| CN202310539409.XA CN116256496B (en) | 2023-05-15 | 2023-05-15 | Contaminated soil restoration test device |
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| CN117470588B (en) * | 2023-10-31 | 2024-03-29 | 中国环境监测总站 | Water sampling device for monitoring water pollution source |
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