CN205103245U - Soil heavy metal migration conversion analogue means - Google Patents

Soil heavy metal migration conversion analogue means Download PDF

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Publication number
CN205103245U
CN205103245U CN201520840469.6U CN201520840469U CN205103245U CN 205103245 U CN205103245 U CN 205103245U CN 201520840469 U CN201520840469 U CN 201520840469U CN 205103245 U CN205103245 U CN 205103245U
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China
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soil
leaching
heavy metal
data acquisition
electrode
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张亭亭
李振泽
薛强
李江山
王平
赵颖
黄茜
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Jiangsu Zhongyi Ecological Soil Institute Co ltd
Wuhan Institute of Rock and Soil Mechanics of CAS
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Jiangsu Zhongyi Ecological Soil Institute Co ltd
Wuhan Institute of Rock and Soil Mechanics of CAS
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Abstract

The utility model relates to a soil heavy metal migration conversion analogue means, include: detecting element and data collection and control system are collected to eluviation post, stock solution system, many covers, through soil water potential's in the stock solution system control eluviation post change to realize that the heavy metal moves and changes in soil. Collecting and detecting through collecting the eluviation liquid of detecting element in to the eluviation post, the data collection and control system can gather, save and control eluviation liquid parameter and soil parameters. This analogue means collects storage, collection, detection and data acquisition in an organic whole of eluviation liquid, and compact structure, convenient operation for heavy metal in soil ion migration conversion modelling provides parameter optimization means, have shortened test duration, have improved experimental precision, and results more science is reliable, is the instrument that carries out experimental studies such as soil heavy metal ion migration.

Description

A kind of heavy metal-polluted soil Transport And Transformation analogue means
Technical field
The utility model relates to environmental geotechnical technical field, particularly a kind of heavy metal-polluted soil Transport And Transformation analogue means.
Background technology
National Investigation of Soil Pollution publication display according to Chinese Ministry of Environmental Protection issues: national soil environment situation totally allows of no optimist, and some areas soil pollution is heavier, and arable soil environmental quality causes anxiety, industry and mining discarded ground soil environment outstanding problem.Soil total exceeding standard rate in the whole nation is 16.1%, and wherein slightly, slightly, moderate and serious pollution point position ratio be respectively 11.2%, 2.3%, 1.5% and 1.1%.Pollution type is based on inorganic type, and organic type takes second place, and compound pollution proportion is less, and an inorganic pollutant figure place that exceeds standard accounts for 82.8% of all super punctuation bits.Investigation result shows: in China's soil pollution, heavy metal pollution occupies sizable ratio, and seriously polluted, is badly in need of administering.Therefore understand fully that the importance that the migration conversion process of heavy metal ion in soil is administered for contaminated soil is self-evident.
By the migration conversion process of field test research heavy metal in soil, not only operation easier is large, cost consumption is many, and the test period is long, the urgency that present stage administers for contaminated soil cannot be met at all, traditional soil heavy metal ion migration transformation experiment device is the hole being provided with free seepage below earth pillar, after the holard is saturated, heavy metal solution is injected in earth pillar, start downward seepage, under ooze the gravity potential relying on the holard completely, progress slowly, test accuracy is poor, and heavy metal moves downwards by gravity potential completely, there is very large inhomogeneity, experimental result is inaccurate.
Method of the prior art can only do soil saturation water heavy metal migration test, and the constraint breaking away from soil by free water starts migration, and cause similar experimental result not science, and experimental period is long, the authenticity of experiment and accuracy cannot be verified.
Utility model content
A kind of heavy metal-polluted soil Transport And Transformation analogue means that the utility model provides, solve or partly solve method of the prior art and can only do soil saturation water heavy metal migration test, cause test findings not science, experimental period is long, the authenticity of experiment and the technical matters that cannot verify of accuracy, achieve that the test period is short, experimental error is little, measuring accuracy is high and can realize the technique effect of the movement and transformation process dynamics monitoring of heavy metal in soil.
The utility model provides a kind of heavy metal-polluted soil Transport And Transformation analogue means, comprising:
Leaching post, outside is hermetically-sealed construction, and inside arranges accommodation space; The first inlet and exhausr port are offered in the top of described leaching post, and the whole body offers multiple vertically highly different detection mouth, and the second inlet and described detection mouth are offered in bottom;
Liquid-storage system, described liquid-storage system comprises: distilled water storage tank, the first peristaltic pump, heavy metal solution hold-up vessel and the second peristaltic pump; Described distilled water storage tank is by the second inlet described in pipeline communication; Described first peristaltic pump is arranged on the pipeline between described distilled water storage tank and described leaching post; Described heavy metal solution hold-up vessel is by the first inlet described in pipeline communication; Described second peristaltic pump is arranged on the pipeline between described heavy metal solution hold-up vessel and described leaching post;
Detecting unit collected by many covers, and quantity is identical with the quantity of described detection mouth; Described collection detecting unit comprises: sample can, sampling pipe, soil conductivity sensor and P in soil H sensor; The detection mouth of described leaching post is stretched in one end of described sampling pipe, and the other end is communicated with described sample can; Described soil conductivity sensor and P in soil H sensor setting, in described leaching post, are arranged near described sampling pipe; PH electrode, conductivity electrode, oxidation-reduction potential electrode and heavy metal electrode is provided with in described sample can;
Data Acquisition and Conversion System (DACS), described Data Acquisition and Conversion System (DACS) comprises: multiple data acquisition unit and data acquisition controller; Multiple described data acquisition unit correspondence overlaps described collection detecting unit more; Described data acquisition unit is connected by wire with described PH electrode, conductivity electrode, oxidation-reduction potential electrode and described heavy metal electrode; Described data acquisition controller and described soil conductivity sensor, described P in soil H sensor and multiple described data acquisition unit are electrically connected;
Wherein, when carrying out simulation test, soil is filled in described accommodation space and forms earth pillar, above and below described earth pillar, set gradually permeable filter membrane, permeable rock layers and glass bead layer respectively; Described glass bead layer above described earth pillar is close to the top inner wall of described leaching post; Described glass bead layer below described earth pillar is close to the bottom interior wall of described leaching post; Described simulation test can simulate the migration of heavy metal ion in saturated soil and conversion process, also can simulate the migration of heavy metal ion in unsaturated soil and conversion process.
As preferably, described leaching post comprises: leaching wall, top cover, bottom and two O-ring seals;
Described leaching wall is the hollow cylinder of open at both ends, and the two ends of described leaching wall extend outward the ring flat-plate of setting width respectively;
Described top cover is fixedly connected with by the described ring flat-plate of bolt with described leaching wall top;
Described bottom is fixedly connected with the described ring flat-plate bottom described leaching wall by bolt; The bottom of described bottom is fixedly connected with base;
Described O-ring seal is annular; O-ring seal described in one of them is fixed between described top cover and leaching wall, and O-ring seal described in another is fixed between described bottom and leaching wall;
Wherein, described leaching wall, top cover and described bottom entirety forms the hollow cylinder sealed; Described top cover offers described first inlet and described exhausr port; Described leaching wall offers multiple vertically highly different described detection mouth; Described bottom offers described second inlet and described detection mouth.
As preferably, described leaching wall, top cover and bottom all adopt transparent pvc material.
As preferably, described liquid-storage system also comprises: adjustable air compressor machine, tensimeter, partial pressure valve, first flow take into account second gauge;
Described adjustable air compressor machine is communicated with described partial pressure valve by tracheae;
Described tensimeter is arranged on the tracheae between described adjustable air compressor machine and partial pressure valve;
Described partial pressure valve is provided with two gas vents, and gas vent described in one of them is communicated with described distilled water storage tank by tracheae, and gas vent described in another is communicated with described heavy metal solution hold-up vessel by tracheae;
Described first-class gauge is arranged on the pipeline between described first peristaltic pump and described leaching post;
Described second gauge is arranged on the pipeline between described second peristaltic pump and described leaching post.
As preferably, described collection detecting unit also comprises: fixator, filtrator, solenoid valve and the 3rd flowmeter;
Described fixator is fixedly connected with described leaching post, described sampling pipe can be fixed on the described detection mouth of described leaching post;
Described filtrator, solenoid valve and the 3rd flowmeter are successively set on described sampling pipe; Described filtrator is near described leaching post;
Described soil conductivity sensor and P in soil H sensor are positioned at same level height with corresponding described sampling pipe.
As preferably, described heavy metal solution hold-up vessel, soil conductivity sensor, P in soil H sensor, filtrator, solenoid valve, the 3rd flowmeter, PH electrode, conductivity electrode, oxidation-reduction potential electrode, heavy metal electrode and sample can all adopt acid-alkali-corrosive-resisting material.
As preferably, described analogue means comprises 5 cover described collection detecting units and 5 described data acquisition units;
The whole body of described leaching post offers 4 vertical highly different described detection mouths, and 1 described detection mouth is offered in bottom; The vertical spacing detecting mouth described in each is setting value;
Described sampling pipe in the described collection detecting unit of 5 cover respectively detection mouth described with 5 is communicated with;
5 described data acquisition units are separately positioned on 5 described sample cans;
Wherein, described data acquisition unit can accept the electric signal that corresponding described PH electrode, conductivity electrode, oxidation-reduction potential electrode and described heavy metal electrode send, and generates corresponding informance.
As preferably, described treatment facility also comprises: data terminal;
Described data terminal is computer; Described data terminal and described data acquisition controller are electrically connected;
Wherein, described data acquisition controller can accept and store the information that described data acquisition unit sends; Described data terminal can show and process described information.
The heavy metal-polluted soil Transport And Transformation analogue means that the utility model provides controls the change of soil water potential in leaching post by liquid-storage system, by multiple collection detecting unit, the heavy metal solution of differing heights place leaching post is collected and parameter detecting, soil conductivity sensor and P in soil H sensor detect conductivity and the PH of soil in real time, PH electrode, conductivity electrode, oxidation-reduction potential electrode, heavy metal electrode can detect the PH of leaching liquor in real time, conductivity, oxidation-reduction potential, heavy metal concentration, the information of Data Acquisition and Conversion System (DACS) energy heavy metal solution parameter and soil parameters and storage, thus realize heavy metal ion and move in soil and the rapid scan of conversion process.Therefore, the storage of this analogue means collection solution, collection, detection and data acquisition are integrated in one, compact conformation, easy to operate, set up for soil heavy metal ion migration and transformation model and provide parameter optimization means, shorten the test period, improve test accuracy, result of study is reliably more scientific, be carry out heavy metal-polluted soil migration and the instrument of the experimental studies such as conversion, heavy metal in soil can be realized and move with the real-time, efficient of conversion process and monitor.
Accompanying drawing explanation
The configuration diagram of the heavy metal-polluted soil Transport And Transformation analogue means that Fig. 1 provides for the utility model embodiment.
The parts of attached number in the figure representative are followed successively by: 1 adjustable air compressor machine, 2 tensimeters, 3 partial pressure valve, 4 distilled water storage tanks, 5 first peristaltic pumps, 6 first-class gauge, 7 heavy metal solution storage tanks, 8 second peristaltic pumps, 9 second gauge, 10 first inlets, 11 top covers, 12 exhausr ports, 13 O-ring seals, 14 beaded glasses, 15 bolts, 16 permeable rock layers, 17 permeable filter membranes, 18 soil conductivity sensors, 19 P in soil H sensors, 20 leaching walls, 21 bottoms, 22 bases, 23 second inlets, 24 fixators, 25 filtrators, 26 solenoid valves, 27 the 3rd flowmeters, 28PH electrode, 29 conductivity electrode, 30 oxidation-reduction potential electrodes, 31 heavy metal electrodes, 32 sample cans, 33 data acquisition units, 34 data acquisition controllers, 35 data terminals.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in further detail:
The embodiment of the present application provides a kind of heavy metal-polluted soil Transport And Transformation analogue means, solve or partly solve method of the prior art and can only do soil saturation water heavy metal migration test, cause test findings not science, test period is long, the technical matters that the authenticity of test and accuracy cannot be verified, by arranging leaching post, liquid-storage system, many cover collection detecting units and Data Acquisition and Conversion System (DACS); Achieve that the test period is short, test error is little, measuring accuracy is high and the technique effect of the movement and transformation process dynamics monitoring of heavy metal in soil can be realized.
The embodiment of the present application provides a kind of heavy metal-polluted soil Transport And Transformation analogue means, comprising: leaching post, liquid-storage system, many covers collect detecting unit and Data Acquisition and Conversion System (DACS) 34.
The outside of leaching post is hermetically-sealed construction, and inside arranges accommodation space; The first inlet 10 and exhausr port 12 are offered in the top of leaching post, and the whole body offers multiple vertically highly different detection mouth, and bottom is offered the second inlet 23 and detected mouth.
Liquid-storage system comprises: distilled water storage tank 4, first peristaltic pump 5, heavy metal solution hold-up vessel 7 and the second peristaltic pump 8; Distilled water storage tank 4 is by pipeline communication second inlet 23; First peristaltic pump 5 is arranged on the pipeline between distilled water storage tank 4 and leaching post; Heavy metal solution hold-up vessel 7 is by pipeline communication first inlet 10; Second peristaltic pump 8 is arranged on the pipeline between heavy metal solution hold-up vessel 7 and leaching post.
Detecting unit collected by many covers, and quantity is identical with the quantity detecting mouth; Collection detecting unit comprises: sample can 32, sampling pipe, soil conductivity sensor 18 and P in soil H sensor 19; The detection mouth of leaching post is stretched in one end of sampling pipe, and the other end is communicated with sample can 32; Soil conductivity sensor 18 and P in soil H sensor 19 are arranged in leaching post, arrange near sampling pipe; PH electrode 28, conductivity electrode 29, oxidation-reduction potential electrode 30 and heavy metal electrode 31 is provided with in sample can 32.
Data Acquisition and Conversion System (DACS) comprises: multiple data acquisition unit 33 and data acquisition controller 34; Detecting unit collected by the corresponding many covers of multiple data acquisition unit 33; Data acquisition unit 33 is connected by wire with PH electrode 28, conductivity electrode 29, oxidation-reduction potential electrode 30 and heavy metal electrode 31; Data acquisition controller 34 and soil conductivity sensor 18, P in soil H sensor 19 and multiple data acquisition unit 33 are electrically connected.
Wherein, when carrying out simulation test, soil is filled in accommodation space and forms earth pillar, above and below earth pillar, set gradually permeable filter membrane 17, permeable rock layers 16 and glass bead layer 14 respectively; Glass bead layer 14 above earth pillar is close to the top inner wall of leaching post; Glass bead layer 14 below earth pillar is close to the bottom interior wall of leaching post; Simulation test can simulate the migration of heavy metal ion in saturated soil and conversion process, also can simulate the migration of heavy metal ion in unsaturated soil and conversion process.
Further, this leaching post comprises: leaching wall 20, top cover 11, bottom 21 and two O-ring seals 13; Leaching wall 20 is the hollow cylinder of open at both ends, and the two ends of leaching wall 20 extend outward the ring flat-plate of setting width respectively; Top cover 11 is fixedly connected with by the ring flat-plate of bolt 15 with leaching wall 20 top; Bottom 21 is fixedly connected with the ring flat-plate bottom leaching wall 20 by bolt 15; The bottom of bottom 21 is fixedly connected with base 22; O-ring seal 13 is in annular; One of them O-ring seal 13 is fixed between top cover 11 and leaching wall 20, and another O-ring seal 13 is fixed between bottom 21 and leaching wall 20.
Wherein, leaching wall 20, top cover 11 form with bottom 21 entirety the hollow cylinder sealed; Top cover 11 offers the first inlet 10 and exhausr port 12; Leaching wall 20 offers multiple vertically highly different detection mouth; Bottom 21 offers the second inlet 23 and detects mouth.As a kind of preferred embodiment, leaching wall 20, top cover 11 and bottom 21 all adopt transparent pvc material.
Further, this liquid-storage system also comprises: adjustable air compressor machine 1, tensimeter 2, partial pressure valve 3, first-class gauge 6 and second gauge 9; Adjustable air compressor machine 1 is communicated with partial pressure valve 3 by tracheae; Tensimeter 2 is arranged on the tracheae between adjustable air compressor machine 1 and partial pressure valve 3; Partial pressure valve 3 is provided with two gas vents, and one of them gas vent is communicated with distilled water storage tank 4 by tracheae, and another gas vent is communicated with heavy metal solution hold-up vessel 7 by tracheae; First-class gauge 6 is arranged on the pipeline between the first peristaltic pump 5 and leaching post; Second gauge 9 is arranged on the pipeline between the second peristaltic pump 8 and leaching post.
Further, collect detecting unit also to comprise: fixator 24, filtrator 25, solenoid valve 26 and the 3rd flowmeter 27; Fixator 24 is fixedly connected with leaching post, sampling pipe can be fixed on the detection mouth of leaching post; Filtrator 25, solenoid valve 26 and the 3rd flowmeter 27 are successively set on sampling pipe; Filtrator 25 is near leaching post; Soil conductivity sensor 18 and P in soil H sensor 19 are positioned at same level height with corresponding sampling pipe.
As a kind of preferred embodiment, heavy metal solution hold-up vessel 7, second peristaltic pump 8, second gauge 9, soil conductivity sensor 18, P in soil H sensor 19, filtrator 25, solenoid valve 26, the 3rd flowmeter 27, PH electrode 28, conductivity electrode 29, oxidation-reduction potential electrode 30, heavy metal electrode 31 and sample can 32 all adopt acid-alkali-corrosive-resisting material.
As a kind of preferred embodiment, analogue means comprises 5 covers and collects detecting unit and 5 data acquisition units 33; The whole body of leaching post offers 4 vertical highly different detection mouths, and bottom is offered 1 and detected mouth; Each vertical spacing detecting mouth is setting value; The 5 cover sampling pipes collected in detecting unit detect mouth with 5 respectively and are communicated with; 5 data acquisition units 33 are separately positioned on 5 sample cans 32; Wherein, data acquisition unit 33 can accept the electric signal that corresponding PH electrode 28, conductivity electrode 29, oxidation-reduction potential electrode 30 and heavy metal electrode 31 send, and generates corresponding informance.
Further, this treatment facility also comprises: data terminal 35; Data terminal 35 is computer; Data terminal 35 and data acquisition controller 34 are electrically connected; Wherein, data acquisition controller 34 can accept and store the information that data acquisition unit 33 sends; Data terminal 35 can show and process information.
The principle of work of heavy metal-polluted soil Transport And Transformation analogue means provided the application below in conjunction with specific embodiment and the operation characteristic of all parts are described in detail:
During work, first the lower end of leaching wall 20 is fixedly connected with bottom 21 bolt 15, O-ring seal 13 is close between leaching wall 20 lower end and base 22, tile glass bead layer 14 in bottom 21, permeable rock layers 16 is placed in glass bead layer 14, permeable filter membrane 17 is close in permeable rock layers 16, soil is loaded in leaching wall 20, permeable filter membrane 17 is put successively on soil top, permeable rock layers 16 and glass bead layer 14, then top cover 11 is fixedly connected with the upper end bolt of leaching wall 20, O-ring seal 13 is close between leaching wall 20 upper end and top cover 11, heavy metal solution pipeline is connected with the first inlet 10 and the second inlet 23 respectively with distilled water pipeline.
Start Data Acquisition and Conversion System (DACS), adjustable air compressor machine 1 starts to electricity, air pressure is applied in distilled water hold-up vessel 4 and heavy metal solution hold-up vessel 7 by pipeline through tensimeter 2 and partial pressure valve 3 respectively, if the migration of simulation heavy metal ion in saturated soil and conversion process, start the first peristaltic pump 5, distilled water is extracted out from distilled water hold-up vessel 4 by the first peristaltic pump 5, first-class gauge 6 controls the flow of distilled water, distilled water enters in leaching post by pipeline by the second inlet 23, distilled water is under the effect of distilled water hold-up vessel 4 internal gas pressure, the soil in leaching post is gone to carry out from bottom to top saturated, air in soil is discharged by gas outlet, if the migration of simulation heavy metal ion in unsaturated soil and conversion process, then start the second peristaltic pump 8, heavy metal solution is extracted out from heavy metal solution hold-up vessel 7 by the second peristaltic pump 8, second gauge 9 controls the flow of heavy metal solution, heavy metal solution enters in the soil in leaching post by pipeline by the first inlet 10, heavy metal solution is under the effect of heavy metal solution hold-up vessel 7 internal gas pressure, infiltrate soil from top to bottom, start and collect detecting unit, collect the soil liquid that detecting unit collects respective heights respectively, the soil liquid is through filter 25, solenoid valve 26, 3rd flowmeter 27 enters in sample can 32, the impurity in solution removed by filtrator 25, the volume of solution measured by 3rd flowmeter 27, PH electrode 28 in sample can 32, conductivity electrode 29, oxidation-reduction potential electrode 30, heavy metal electrode 31 detects the PH of solution respectively, conductivity, oxidation-reduction potential, the concentration of heavy metal, soil conductivity sensor 18, P in soil H sensor 19 detects conductivity and the PH of soil in leaching post respectively, the data acquisition unit 33 on the top of sample can 32 gathers the detection data of this collection detecting unit respectively, data are reached in computer by data acquisition controller 34.
The heavy metal-polluted soil Transport And Transformation analogue means that the utility model provides controls the change of soil water potential in leaching post by liquid-storage system, adjustable air compressor machine 1 can make heavy metal solution and distilled water keep certain pressure, thus accelerate solution in leaching post under ooze, by multiple collection detecting unit, the heavy metal solution of differing heights place leaching post is collected and parameter detecting, filtrator 25 can remove the impurity in leaching liquor, improve test accuracy, soil conductivity sensor 18 and P in soil H sensor 19 detect conductivity and the PH of soil in real time, PH electrode 28, conductivity electrode 29, oxidation-reduction potential electrode 30, heavy metal electrode 31 can detect the PH of leaching liquor in real time, conductivity, oxidation-reduction potential, heavy metal concentration, the information of Data Acquisition and Conversion System (DACS) energy heavy metal solution parameter and soil parameters and storage, thus realize heavy metal ion and move in soil and the rapid scan of conversion process.Therefore, the storage of this analogue means collection solution, collection, detection and data acquisition are integrated in one, compact conformation, easy to operate, set up for soil heavy metal ion migration and transformation model and provide parameter optimization means, shorten the test period, improve test accuracy, result of study is reliably more scientific, be carry out heavy metal-polluted soil migration and the instrument of the experimental studies such as conversion, heavy metal in soil can be realized and move with the real-time, efficient of conversion process and monitor.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (8)

1. a heavy metal-polluted soil Transport And Transformation analogue means, is characterized in that, described analogue means comprises:
Leaching post, outside is hermetically-sealed construction, and inside arranges accommodation space; The first inlet and exhausr port are offered in the top of described leaching post, and the whole body offers multiple vertically highly different detection mouth, and the second inlet and described detection mouth are offered in bottom;
Liquid-storage system, described liquid-storage system comprises: distilled water storage tank, the first peristaltic pump, heavy metal solution hold-up vessel and the second peristaltic pump; Described distilled water storage tank is by the second inlet described in pipeline communication; Described first peristaltic pump is arranged on the pipeline between described distilled water storage tank and described leaching post; Described heavy metal solution hold-up vessel is by the first inlet described in pipeline communication; Described second peristaltic pump is arranged on the pipeline between described heavy metal solution hold-up vessel and described leaching post;
Detecting unit collected by many covers, and quantity is identical with the quantity of described detection mouth; Described collection detecting unit comprises: sample can, sampling pipe, soil conductivity sensor and P in soil H sensor; The detection mouth of described leaching post is stretched in one end of described sampling pipe, and the other end is communicated with described sample can; Described soil conductivity sensor and P in soil H sensor setting, in described leaching post, are arranged near described sampling pipe; PH electrode, conductivity electrode, oxidation-reduction potential electrode and heavy metal electrode is provided with in described sample can;
Data Acquisition and Conversion System (DACS), described Data Acquisition and Conversion System (DACS) comprises: multiple data acquisition unit and data acquisition controller; Multiple described data acquisition unit correspondence overlaps described collection detecting unit more; Described data acquisition unit is connected by wire with described PH electrode, conductivity electrode, oxidation-reduction potential electrode and described heavy metal electrode; Described data acquisition controller and described soil conductivity sensor, described P in soil H sensor and multiple described data acquisition unit are electrically connected;
Wherein, when carrying out simulation test, soil is filled in described accommodation space and forms earth pillar, above and below described earth pillar, set gradually permeable filter membrane, permeable rock layers and glass bead layer respectively; Described glass bead layer above described earth pillar is close to the top inner wall of described leaching post; Described glass bead layer below described earth pillar is close to the bottom interior wall of described leaching post; Described simulation test can simulate the migration of heavy metal ion in saturated soil and conversion process, also can simulate the migration of heavy metal ion in unsaturated soil and conversion process.
2. analogue means as claimed in claim 1, is characterized in that,
Described leaching post comprises: leaching wall, top cover, bottom and two O-ring seals;
Described leaching wall is the hollow cylinder of open at both ends, and the two ends of described leaching wall extend outward the ring flat-plate of setting width respectively;
Described top cover is fixedly connected with by the described ring flat-plate of bolt with described leaching wall top;
Described bottom is fixedly connected with the described ring flat-plate bottom described leaching wall by bolt; The bottom of described bottom is fixedly connected with base;
Described O-ring seal is annular; O-ring seal described in one of them is fixed between described top cover and leaching wall, and O-ring seal described in another is fixed between described bottom and leaching wall;
Wherein, described leaching wall, top cover and described bottom entirety forms the hollow cylinder sealed; Described top cover offers described first inlet and described exhausr port; Described leaching wall offers multiple vertically highly different described detection mouth; Described bottom offers described second inlet and described detection mouth.
3. analogue means as claimed in claim 2, is characterized in that,
Described leaching wall, top cover and bottom all adopt transparent pvc material.
4. analogue means as claimed in claim 1, is characterized in that,
Described liquid-storage system also comprises: adjustable air compressor machine, tensimeter, partial pressure valve, first flow take into account second gauge;
Described adjustable air compressor machine is communicated with described partial pressure valve by tracheae;
Described tensimeter is arranged on the tracheae between described adjustable air compressor machine and partial pressure valve;
Described partial pressure valve is provided with two gas vents, and gas vent described in one of them is communicated with described distilled water storage tank by tracheae, and gas vent described in another is communicated with described heavy metal solution hold-up vessel by tracheae;
Described first-class gauge is arranged on the pipeline between described first peristaltic pump and described leaching post;
Described second gauge is arranged on the pipeline between described second peristaltic pump and described leaching post.
5. analogue means as claimed in claim 1, is characterized in that,
Described collection detecting unit also comprises: fixator, filtrator, solenoid valve and the 3rd flowmeter;
Described fixator is fixedly connected with described leaching post, described sampling pipe can be fixed on the described detection mouth of described leaching post;
Described filtrator, solenoid valve and the 3rd flowmeter are successively set on described sampling pipe; Described filtrator is near described leaching post;
Described soil conductivity sensor and P in soil H sensor are positioned at same level height with corresponding described sampling pipe.
6. analogue means as claimed in claim 5, is characterized in that,
Described heavy metal solution hold-up vessel, soil conductivity sensor, P in soil H sensor, filtrator, solenoid valve, the 3rd flowmeter, PH electrode, conductivity electrode, oxidation-reduction potential electrode, heavy metal electrode and sample can all adopt acid-alkali-corrosive-resisting material.
7. analogue means as claimed in claim 5, is characterized in that,
Described analogue means comprises 5 cover described collection detecting units and 5 described data acquisition units;
The whole body of described leaching post offers 4 vertical highly different described detection mouths, and 1 described detection mouth is offered in bottom; The vertical spacing detecting mouth described in each is setting value;
Described sampling pipe in the described collection detecting unit of 5 cover respectively detection mouth described with 5 is communicated with;
5 described data acquisition units are separately positioned on 5 described sample cans;
Wherein, described data acquisition unit can accept the electric signal that corresponding described PH electrode, conductivity electrode, oxidation-reduction potential electrode and described heavy metal electrode send, and generates corresponding informance.
8. analogue means as claimed in claim 1, is characterized in that,
Described treatment facility also comprises: data terminal;
Described data terminal is computer; Described data terminal and described data acquisition controller are electrically connected;
Wherein, described data acquisition controller can accept and store the information that described data acquisition unit sends; Described data terminal can show and process described information.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334309A (en) * 2015-10-27 2016-02-17 中国科学院武汉岩土力学研究所 Soil heavy metal migration and transformation simulating device
CN106053297A (en) * 2016-05-06 2016-10-26 同济大学 An experimental system for intelligent penetration sampling and on-line monitoring for soil and underground water pollutants
CN108872535A (en) * 2018-06-20 2018-11-23 安徽科技学院 The simulating test device of heavy metal-polluted soil release
CN109092879A (en) * 2018-07-18 2018-12-28 东华大学 A kind of simulator improving methane emission reduction in landfill yard earthing using charcoal
CN109596461A (en) * 2018-10-25 2019-04-09 中国辐射防护研究院 A kind of radionuclide migration earth pillar environmental chamber
CN111103419A (en) * 2019-12-24 2020-05-05 中国环境科学研究院 Mineral leaching agent migration test system and mineral leaching agent migration conversion test system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334309A (en) * 2015-10-27 2016-02-17 中国科学院武汉岩土力学研究所 Soil heavy metal migration and transformation simulating device
CN106053297A (en) * 2016-05-06 2016-10-26 同济大学 An experimental system for intelligent penetration sampling and on-line monitoring for soil and underground water pollutants
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