CN104596895B - Underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform and analogue experiment method - Google Patents
Underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform and analogue experiment method Download PDFInfo
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Abstract
The present invention relates to a kind of underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform and analogue experiment method, mobile simulation experiment platform is the most first set, in simulation experiment platform, it is packed into aeration zone and the anaerobic condition of simulation typical case's geohydrologic unit again and repairs medium for simulating the pollutant of typical case's permeable reaction barrier, on simulation experiment platform, finally carrying out underground water pollution Transport And Transformation and in-situ immobilization simulation experiment.The present invention is directed to the needs of different experiments code, simulation experiment platform can be entered by simulating pollution thing in several ways, realize chronic pollution source or interim polluter simulation and point-source pollution or the simulation of pollution of area source, how clear simulating pollution thing of observing enters water-bearing layer through aeration zone, and how to realize the overall process of Transport And Transformation in water-bearing layer from earth's surface.It is capable of pollutant Transport And Transformation and simulation of in-situ immobilization in typical case's geohydrologic unit.
Description
Technical field
The present invention relates to a kind of underground water pollution and repair analogue experiment installation and method, specifically a kind of underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform and analogue experiment method.
Background technology
Along with the impact of living environment is continued to increase by mankind's activity, particularly affected with industry developments such as smelting, chemical industry, printing and dyeing by metal selecting and purchasing, cause some area quality of groundwater of China more than IV class or V class, its main polluted factors is " three nitrogen ", heavy metal and organic pollution etc., and show according to " whole nation pollution prevention plan (2010 the year two thousand twenty) " data, China 90% urban groundwater is polluted by toxic pollutant in various degree, therefore, China's Groundwater Environmental Quality allows of no optimist.Subsoil water, as important town and country resource of water supply, plays irreplaceable effect at aspects such as safeguarding economic society sound development, ecological environment.Therefore, for many years, numerous researchers is engaged in the lower water prevention and cure of pollution scientific research with reparation that lands, and the important means exploring this type of problem in science is through building simulated groundwater environmental experiment device, therefore build design science, operation is simple, Financial cost is cheap underground water pollution process simulation and prosthetic device become the hot issue being engaged in underground water pollution preventing and treating with repairing research, and by getting more and more, researchers are paid close attention to.
Permeable reaction barrier (Permeable Reactive Barriers, PRB) technology is to rise in the underground water pollution based technique for in-situ remediation of the nineties in 20th century, it is made up of the active medium of porous, is usually placed in the downstream of underground water pollution pinnule, perpendicular with subsurface flow.When contaminated underground water is by PRB, pollutant and grid precipitate between active medium, adsorb, the series reaction such as oxidation-reduction and biodegradation, thus effectively remove the pollutant in subsoil water, make the arriving of subsoil water of pollution purify, thus help groundwater environment to tend to optimizing.It is few that this technology has processing cost, high treating effect, to advantages such as environmental perturbation are little, thus is with a wide range of applications in subsoil water based technique for in-situ remediation.
Research finds, current subsoil water permeable reaction barrier physical simulating device has a disadvantage in that the most functionally to be seen, existing analog is the most unilateral is simulated research for aeration zone or water-bearing layer, lack the organic assembling device of aeration zone and zone of saturation two aspect analog functuion, particularly lack pollutant and enter zone of saturation by way of simulation monitoring function from aeration zone, contaminant transportation transformation characteristics can not be caught from whole circulation process, it is difficult to unsaturation band seepage flow and water-bearing layer solute transfer are simulated research simultaneously, thus cause analog to lack the globality of simulation geohydrologic unit.Aeration zone plays very important effect in the formation of groundwater resources in evolutionary process, it i.e. has the ability of storage moisture, there is again the function of transmission infiltration of ground surface water, and for underground water pollution, also it is storage and the geological space transmitting the pollutant brought in Infiltration water, simultaneously or pollutant occurs complicated physical chemistry, geochemistry, the space of biological chemistry action, how effectively simulating pollution thing is from aeration zone to zone of saturation, and pollutant how to realize Transport And Transformation at zone of saturation will be all the huge challenge of physical simulating device.2. from effect, the complexity of groundwater environment relatively, simulation sand post can simulate aerated zone soil unsaturated seepage, can simulate One-Dimensional Water dynamic dispersion, but simulation sand post seepage field is the least, its limit wall is the biggest with solute transfer process influence to soil water flow, lack two dimension and multidimensional flow simulating ability, the aeration zone hydrogeologic condition of complexity cannot be simulated, it is impossible to the true geological conditions in accurate reflection field so that experiment lacks representativeness.3. from PRB technical characterstic, PRB technology is deep in actual application to be restricted by on-the-spot hydrogeologic condition, system structure optimization design targetedly is carried out as being not for representative region, light then reduce PRB system service life, heavy then the structure of PRB system may be caused or run unsuccessfully, and the second time construction of PRB system is increased difficulty, improve cost, also should deal carefully with primary inactivation filler, otherwise environment can be caused secondary pollution.null4. from realistic meaning，Underground water pollution Transport And Transformation be unable to do without pollutant assurance of transmission characteristic in soil and groundwater with the research of final home to return to rule，Although can more efficiently assurance contamination characteristics and reparation rule by means of numerical simulation software，But numerical simulation relates to many complicated contaminant transportation course of conveying，Comprise precisely portraying of many hydrogeological parameters，And set up the data such as the change in time and space of large-scale experiment field, the field intensive pollutant levels spatial and temporal distributions of needs and place hydrological geological conditions and model is corrected，Operation complexity，And it is relatively costly，Although place data can be obtained by the observation of large-scale experiment field, field，But field carries out experiment in situ and data acquisition is the most highly difficult，Therefore the data obtained are limited，And the data obtained can not accurately reflect the situations such as inhomogeneities and the pollutant space-time concentration distribution of place hydrogeology characteristic，Thus affect the precision of prediction of underground water pollution hydrodynamics numerical model.
Summary of the invention
An object of the present invention is just to provide a kind of underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform, the problem low with the precision of prediction of underground water pollution hydrodynamics numerical model to solve the experimental data accuracy difference of existing underground water pollution reparation physical simulating device.
The two of the purpose of the present invention are just to provide a kind of underground water pollution Transport And Transformation analogue experiment method integrated with final home to return to, to improve underground water pollution Transport And Transformation and the research of final home to return to rule and discussion.
An object of the present invention is achieved in that
A kind of underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform, drench with rain device, on-Line Monitor Device and middle control computer including: Transport And Transformation analog, aerator, simulation.
The rectangular box that main body is open top of described Transport And Transformation analog, described casing uses poly (methyl methacrylate) plate to process, and periphery is provided with the rustless steel square tube reinforced and support；Inside the plate face of the forward and backward wallboard of described casing, the spacing of 100mm being provided with some upright spill draw-in grooves, the lower edge of described draw-in groove contacts with the base plate of described casing, and the upper edge of described draw-in groove is suitable for reading concordant with described casing；Forward and backward wallboard at described casing is upper puts the porous water dispensing board of one rectangle of grafting between the described draw-in groove of relative two, the lower edge of described porous water dispensing board contacts with the base plate of described casing, the upper edge of described porous water dispensing board and the flush suitable for reading of described casing, be densely covered with the flowing hole eye that aperture is 2mm on the plate face of described porous water dispensing board.
The end side wallboard of described casing is connected to some water inlets that layering is arranged, the sidewall paneling of the other end of described casing is connected to some outlets that layering is arranged, described water inlet and described outlet are made by the lucite tube that aperture is 8mm, in matrix distribution on the sidewall paneling of described casing.
Be respectively arranged with some layering settings on the forward and backward wallboard of described casing is the thief hatch that 8mm lucite tube is made by aperture, described thief hatch is distributed on the front panel corresponding to each sample space separated by described porous water dispensing board and squab panel, each described thief hatch is provided with sampler or is sealed with sealing plug, being respectively arranged with the string in longitudinal arrangement is the overfall that 8mm lucite tube is made at the two ends of the forward and backward wallboard of described casing by aperture, is provided with sampler or is connected to the overflow pipe of band control valve at described overfall.
The base plate of described casing has some draining mudholes, a draining discharge pipeline it is connected in the base opening of each draining mudhole, the pvc pipe of the effective a diameter of 40mm of described draining spoil disposal is made, it is sealed with rustless steel gauze at the top opening of described draining mudhole, being connected to draining spoil disposal control valve on described draining discharge pipeline, the lower end of all described draining discharge pipelines is commonly connected on a horizontal draining spoil disposal house steward.
Described casing is arranged on a chassis, is connected to some castors in the bottom surface on described chassis；Being respectively arranged with crane at the two ends on described chassis, lay water tank on described crane, a water tank is connected on the water inlet of described casing by connecting pipeline, and another water tank is connected on the outlet of described casing by connecting pipeline；Being separately installed with electromagnetic valve and effusion meter on described connecting pipeline, the data wire on described effusion meter is connected on described middle control computer.
The each sample space separated by described porous water dispensing board in described casing is plugged with the some upright monitoring being made up of the pvc pipe that caliber is 20mm/medicine feeding hole pipes respectively, the bottom of described monitoring/medicine feeding hole pipe contacts with the base plate of described casing, the top of described monitoring/medicine feeding hole pipe and the flush suitable for reading of described casing；On the tube wall of described monitoring/medicine feeding hole pipe, circumferentially symmetry has four row apertures is the eyelet of 2mm, and in each column eyelet, the spacing of two adjacent eyelets is 10mm, is enclosed with the rustless steel gauze blocking eyelet on described monitoring/medicine feeding hole pipe.
2 ~ 3 sample spaces of two ends in described casing are placed with by upper-lower position the pedotheque as simulation aeration zone and the pedotheque as simulation anaerobic condition adopted by selected survey region, in described casing, remaining sample space at middle part are placed with pollutant and repair medium；The pedotheque of described simulation aeration zone is sandy silt, and its particle diameter is 0.005 ~ 0.075 mm, and infiltration coefficient is 0.38 ~ 0.54m/d；The pedotheque of described simulation anaerobic condition is grating river sand, and its particle diameter is 0.1 ~ 2.0 mm, and infiltration coefficient is 18 ~ 21m/d.
Described on-Line Monitor Device includes water quality monitor, water-level instrumentation and temperature monitor；Described water quality monitor includes pH monitor, dissolved oxygen monitor, monitored conductivity instrument and oxidation-reduction potential monitor；Monitoring probe on above-mentioned each monitor is plugged in described monitoring/medicine feeding hole pipe, the monitoring probe of one or several detectors it is plugged with in described monitoring/medicine feeding hole pipe that experiment is selected, the data wire of described monitor is connected on described middle control computer, the experiment detection signal gathered with transmission and process.
Suitable for reading at described casing is provided with the sealing lid that can start or fasten, and covers in described sealing and is connected to steam vent, is connected to the exhaustor of band control valve on described steam vent.
Described aerator includes air supply header, gas-distribution pipe and aeration tube；Described aeration tube is the pvc pipe of caliber 10mm, axially has double pore on tube wall along body, and the aperture of each pore is 1mm, and in every steam vent, the pitch-row of two adjacent air holes is 5mm, and two steam vents center of circle angle on body radial section is 45 °；The bottom of each sample space separated by described porous water dispensing board that described aeration tube is horizontally set in described casing, one end of described aeration tube is connected to be plugged in described casing on the described gas-distribution pipe in each sample space, the upper end of described gas-distribution pipe is connected to be arranged on the described air supply header above described casing, equipped with aeration control valve on gas-distribution pipe every described, described air supply header is supplied by aerator or high-pressure nitrogen bottle, repair by regulating and controlling described aeration control valve pedotheque in described casing and pollutant medium produces aeration, thus form the simulation of underground reservoir redox environment.
The described simulation device that drenches with rain includes water main, water supply arm and some showers；Described shower is the pvc pipe of caliber 10mm, axially has double draining hole on tube wall along body, and the aperture in each water hole is 1mm, and in every osculum, the pitch-row in two adjacent water holes is 5mm, and two osculums center of circle angle on body radial section is 45 °；Described shower is divided into some groups, and often the described shower in group be arranged in parallel and level is laid in the top of described casing；Every described shower connects standpipe by coil, and the upper end of described standpipe is connected on described water supply arm, and all described water supply arms are commonly connected on described water main, equipped with the control valve that drenches with rain on standpipe every described；Described water main is supplied water by water pump or tap water pipe network, forms rainfall simulation by regulation and control Water supply switch valve.
It is any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that the described pollutant placed in each sample space in described casing repair medium, or two of which or the two or more mixture mixed；Place in adjacent sample spaces in described casing can be that identical or different pollutant repair medium.
By the regulation and control to the electromagnetic valve on the water inlet of described casing and/or outlet connecting pipeline of the described middle control computer, described Transport And Transformation analog realizes the flow to subsoil water and the simulation of flow velocity and regulation and control；By the monitoring information collection to described on-Line Monitor Device of the described middle control computer, described Transport And Transformation analog realizes the simulation to hydrodynamic field and Groundwater chemical fields.
By the described water inlet on described Transport And Transformation analog or described monitoring/medicine feeding hole pipe add medicine, described Transport And Transformation analog realizes the POLLUTION SIMULATION of subsoil water in the anaerobic condition of typical case's geohydrologic unit；By described simulation drench with rain device water supply in add medicine, described Transport And Transformation analog realizes the POLLUTION SIMULATION that produced underground water by drug influence of anaerobic condition of typical case's geohydrologic unit.
The two of the purpose of the present invention are achieved in that
A kind of underground water pollution Transport And Transformation analogue experiment method integrated with final home to return to, relies on above-mentioned underground water pollution Transport And Transformation to be simulated experiment with final home to return to integrated mobile analog platform, including following operating procedure:
A, gather pedotheque at the soil horizon in aerated zone of studied basin geologic section and zone of saturation soil layer higher slice, the pedotheque gathered is refined and after dried, according to locality corresponding geologic structure relation, in 2 ~ 3 sample spaces of the described tank ends that pedotheque is the most uniformly inserted；The thickness of the same layer pedotheque inserted in each sample space is essentially identical, and is on the sustained height of described casing；The filling total height of pedotheque is than the suitable for reading low 50mm of described casing；According to studied basin geologic section and features of pollution, selecting pollutant to repair medium, the most uniformly insert in the middle part of described casing in remaining sample space, pollutant repair the packed height suitable for reading low 50mm than described casing of medium；
B, requirement according to Experimental Procedures determine detection position, and the monitoring/medicine feeding hole pipe selected according to simulation experiment in described casing inserts the monitoring probe of described on-Line Monitor Device, monitoring probe insertion depth according to Experimental Procedures it needs to be determined that, the data wire of described on-Line Monitor Device is all connected on middle control computer；According to the requirement of Experimental Procedures, on described casing, selected thief hatch is as sample collecting point, extracts sealing plug and be respectively mounted sampler on selected described thief hatch；
C, the electromagnetic valve opened on the water inlet connecting pipeline of described casing, continuous water filling in described casing, current enter described casing by water inlet；Water flooding regime is first from undermost water inlet slowly injected clear water, every 24 hours positions to water filling water inlet of up conversion, until stopping supplying water after transforming to the superiors' water inlet water filling 24 hours, making the pedotheque in described casing and pollutant repair medium to be sufficiently humidified so as to saturated, the pedotheque in described casing and the gas in pollutant reparation medium are discharged；
The water level that d, empirically code need adjusts the tank height of water inlet, open the electromagnetic valve on water inlet connecting pipeline and start water inlet, current enter in described casing by water inlet, carrying out along with water filling, open the electromagnetic valve on outlet connecting pipeline, make current flow out described casing by outlet；Water level information in casing is sent to middle control computer by the described on-Line Monitor Device being arranged in monitoring/medicine feeding hole pipe, by the control to the electromagnetic valve on water inlet and/or outlet connecting pipeline, by stable in experiment setting value for the simulated groundwater position flowed through in described casing；
E, the medicine as polluter that experiment uses is joined in the pedotheque in described casing by the water inlet of described Transport And Transformation analog, monitoring/medicine feeding hole pipe or shower, it is achieved the simulation of chronic pollution source or temporarily polluter and point-source pollution or the simulation of pollution of area source；
F, in the administration process in simulating pollution source or after administration process, can start with described on-Line Monitor Device and described middle control computer the various parameters in the water cycle process in described Transport And Transformation analog are carried out real-time, automatically gather, to obtain the change experimental data of underground water pollution Transport And Transformation and final home to return to.
Refinement and the dried mode of the described pedotheque in step a are, collection pedotheque it is layered respectively from aeration zone and the zone of saturation of studied basin geologic section, and the same layer sample gathered is carried out uniform mixed processing, it is placed on one piece of Polypropylence Sheet after all same layer pedotheque mixing that will gather, after breaking into pieces, mixing, pave into a square, foursquare pedotheque is drawn diagonal, pedotheque is divided into four parts, being merged into a reservation relative for drift angle two parts, residue soil sample is cast out；The pedotheque of the different layers retained is carried out micronization processes respectively, first that pedotheque is fine ground, stone foreign material therein are sorted out, again pedotheque is placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then pedotheque sieved process with the soil sieve of soil bobbing machine and 50 ~ 200 mesh.
It can be any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that described pollutant repair medium, or two of which or the two or more mixture mixed in any proportion；Before being filled into described Transport And Transformation analog, first the described pollutant of single are repaired medium tap water to clean up, it is subsequently placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then carry out sieving with the soil sieve of soil bobbing machine and 50 ~ 200 mesh process after stand-by；Also dependent on the needs of Experimental Procedures, pollutant the most of the same race are repaired after medium empirically requires the ratio soil bobbing machine mix homogeneously determined stand-by.
Step e by the administering mode of water inlet is: in the water tank being connected with water inlet, first add experimental drug, simulation sewage is become after being thoroughly mixed, the water inlet flow velocity determined according to Experimental Procedures and water inlet duration, after adjusting the position height of water tank of connection water inlet, in described casing, injected the simulation sewage of elongate member when meeting water inlet flow velocity and water inlet by water inlet, be consequently formed the simulation of pollution of underground aquifers process containing the special contamination factor.
Step e by the administering mode of monitoring/medicine feeding hole pipe is: first adjust the hydrodynamic field in described Transport And Transformation analog according to the requirement of Experimental Procedures, then select a monitoring/medicine feeding hole pipe to inject a kind of experimental drug according to Experimental Procedures, then can form persistence or the simulation of provisional single source contamination process in the pedotheque in described Transport And Transformation analog；Or select multiple monitoring/medicine feeding hole pipe to be injected simultaneously into different experimental drugs respectively, then can form persistence or provisional multi-source cross-contamination diffusion simulations in the pedotheque in described Transport And Transformation analog.
Step e is: first in water pump supply tank, to add experimental drug, be thoroughly mixed by the administering mode of shower；Then, set rainfall intensity, rain time according to the requirement of Experimental Procedures, select certain or the whole region on pedotheque surface in casing to throw in district as medicine according to the requirement of Experimental Procedures simultaneously；Again, after the hydrodynamic field in adjusting described Transport And Transformation analog, control the described simulation device that drenches with rain and throw in district's simulated rainfall at selected medicine, can be formed containing the rainfall simulation specifying pollution factor；By the dripping effect of rainfall into, medicine is brought the surface of pedotheque in described casing, the surface of pedotheque in described Transport And Transformation analog can form the pollution of area source diffusion simulations of persistence.
The present invention moves analog platform and is one and typically descends geohydrologic unit model, can simulating pollution thing from the earth's surface in studied basin to aeration zone again to the Transport And Transformation process in water-bearing layer, simulating pollution thing in aquifer from feeding area, the Transport And Transformation process in pollution amelioration district to discharge area, additionally it is possible to realize comprehensive Hydrodynamic field, hydrochemical field simulation reconstruction.Pollutant migration process in aerated zone soil and water-bearing layer soil can be clearly observed, it is simple to analyse in depth the solute transfer in the pollutant aerated zone soil in studied basin and zone of saturation soil, Transport And Transformation and the rule at final home to return to by analog platform of the present invention.The present invention can carry out Contaminants Transport and the experiment of reparation in multiple aeration zone and zone of saturation, it is ensured that effective operation of simulation experiment, and has the experiment effect being more nearly ecosystem.
The present invention moves the water inlet of analog platform can pass through water distribution system, monitoring/medicine feeding hole pipe and the simulation different modes simulating pollution things such as device that drench with rain enter into box house, the supervising device regulation and control analog platform relying on analog platform enters, the size of water outlet, and realize water distribution uniformity by the porous water dispensing board that casing is built-in, simulating pollution thing is constantly by water-rock effect, redox, the differential responses such as biological chemistry action and carry out Transport And Transformation, simultaneously by the various analog in experiment porch, on-Line Monitor Device and sample collecting and test, simulating pollution thing is effectively monitored, such that it is able to clearly observe how simulating pollution thing enters water-bearing layer through aeration zone from earth's surface, and in water-bearing layer, how to realize the overall process of Transport And Transformation, realize the simulating pollution thing full-scope simulation monitoring function at aeration zone to zone of saturation.
The invention has the beneficial effects as follows: 1. aeration zone Contaminants Transport is connected by the present invention with pollution of underground aquifers thing Transport And Transformation experimental science, pollutant are entered water-bearing layer process experiment and underground water pollution reparative experiment carries out system combination, realize the pollutant combination from earth's surface-aeration zone-water-bearing layer Transport And Transformation, benefit our pursuits for underground water pollution repair mechanisms research offer, the most also reach to reduce step and the input cost of practical operation, increase convenience and the operability of process simulation experiment conversion；2. the present invention both can simulate the simulation experiment laterally polluting migration, again can be for the simulation experiment of vertical pollution, it is possible to meets the multidimensional migration requirement of pollutant in subsoil water pollution amelioration；3. the present invention can be used for the discussion of water quality evolution mechanism, it may also be used for the parametric measurements such as dispersion coefficient and research rainfall migrate the simulation experiment of impact in aeration zone to pollutant；4. the present invention utilizes waterpower regeneration principle or aqueous vapor regeneration principle, carries out system regeneration for analog block part, can be greatly prolonged analog platform service life, groundwater environment does not cause secondary pollution simultaneously；5. apparatus of the present invention can realize the physical modeling in field study district to the full extent, and the field study place of large scale is reduced under the guidance that geometric similarity is theoretical the indoor physical simulation device of little yardstick, makes experiment have specific aim and the effectiveness of height；6. present configuration is simple, and measurement data is accurate, of many uses, it is possible to be substantially reduced physical modeling's cost, improves physical modeling's work efficiency, is with a wide range of applications and market value.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention moves analog platform.
Fig. 2 is the plan structure schematic diagram of box portion.
Fig. 3 is the site plan of shower.
Fig. 4 is the site plan of aeration tube.
Fig. 5 is the perspective view that the present invention moves analog platform.
In figure: 1, casing, 2, water inlet, 3, overfall, 4, aeration control valve, 5, shower, 6, drench with rain control valve, 7, coil, 8, gas-distribution pipe, 9, thief hatch, 10, outlet, 11, draw-in groove, 12, chassis, 13, draining discharge pipeline, 14, draining spoil disposal control valve, 15, foot is taken turns, 16, crane, 17, water main, 18, water supply arm, 19, air supply header, 20, draining spoil disposal house steward, 21, monitoring/medicine feeding hole pipe, 22, draining mudhole, 23, porous water dispensing board, 24, aeration tube, 25, the dosing mouth of pipe, 26, pedotheque, 27, pollutant repair medium.
Detailed description of the invention
Embodiment 1: underground water pollution Transport And Transformation and final home to return to integrated mobile analog platform.
Underground water pollution Transport And Transformation of the present invention and final home to return to integrated mobile analog platform include Transport And Transformation analog, aerator, simulation drench with rain four parts such as device and middle control computer.
As it is shown in figure 1, the rectangular box that main body is open top 1 of described Transport And Transformation analog, casing 1 uses poly (methyl methacrylate) plate thick for 10mm to process, and reinforces by rustless steel square tube in the periphery of poly (methyl methacrylate) plate and supports.Inside the front panel of casing 1 with the plate face of squab panel, the spacing of 100mm being provided with some upright spill draw-in grooves (Fig. 2), the lower edge of draw-in groove 11 contacts with the base plate of casing 1, and the upper edge of draw-in groove 11 is suitable for reading concordant with casing 1.The porous water dispensing board 23 of one rectangle of grafting between two draw-in grooves 11 that the front panel of casing 1 is relative with the position on squab panel, the lower edge of porous water dispensing board 23 contacts with the base plate of casing 1, the upper edge of porous water dispensing board 23 and the flush suitable for reading of casing 1.Being densely covered with flowing hole eye on the plate face of porous water dispensing board 23, the aperture of flowing hole eye is 2mm, and pitch-row is 4mm, is distributed in Flos Mume battle array.
Being connected to point five layers of water inlet 2 arranged on the right end sidewalls plate of casing 1, every layer of water inlet has at least two, forms matrix form distribution.Being connected to point five layers of outlet 10 arranged on the left end side wallboard of casing 1, every layer of outlet has at least two, forms matrix form distribution.Water inlet 2 and outlet 10 are made by the lucite tube that aperture is 8mm.Transport And Transformation analog is thus made to sequentially form the contaminated area of subsoil water, pollution amelioration district and discharge area from right to left.
In Fig. 1, front panel at casing 1 is respectively arranged with point five layers of thief hatch 9 arranged on squab panel, thief hatch 9 is made up of the lucite tube that aperture is 8mm, is distributed on the front panel corresponding to each sample space separated by porous water dispensing board 23 or squab panel.Each thief hatch 9 is provided with sampler or is sealed with sealing plug.Being respectively arranged with the string overfall 3 in longitudinal arrangement at the front panel of casing 1 and the two ends, left and right of squab panel, overfall is that 8mm lucite tube is made by aperture.Sampler is installed at overfall 3 or is connected to the overflow pipe of band control valve.
In Fig. 1, the base plate of casing 1 has eight draining mudhole 22(Fig. 2), a draining discharge pipeline 13 it is connected on each draining mudhole 22, draining discharge pipeline 13 pvc pipe of diameter 40mm is made, rustless steel gauze it is sealed with at the inner orifice of draining mudhole, being connected to draining spoil disposal control valve 14 on draining discharge pipeline 13, the lower end of all draining discharge pipelines 13 is commonly connected on a horizontal draining spoil disposal house steward 20.
Bottom shelf at casing 1 is provided with chassis 12, and chassis 12 is supported connection by 68 castors 15.A collapsible rectangle crane 16 is respectively connected at the two ends on chassis 12, crane 16 is laid adjustable for height water tank (not shown), the water tank of right-hand member is connected on the water inlet 2 of casing 1 right-hand member by connecting pipeline, and the water tank of left end is connected on the outlet 10 of casing 1 left end by connecting pipeline.Being separately installed with electromagnetic valve and effusion meter on connecting pipeline, the data wire on effusion meter is connected on middle control computer.
Being separated several sample spaces by porous water dispensing board 23 in casing 1, be plugged with some upright monitoring/medicine feeding hole pipes 21 in each sample space respectively, monitoring/medicine feeding hole pipe 21 is made up of the pvc pipe that caliber is 20mm.The bottom of monitoring/medicine feeding hole pipe 21 contacts with the base plate of casing 1, the top of monitoring/medicine feeding hole pipe 21 and the flush suitable for reading of casing 1.On the tube wall of monitoring/medicine feeding hole pipe 21, circumferentially symmetry has four row apertures is the eyelet of 2mm, and in each column eyelet, the spacing of two adjacent eyelets is 10mm.It is enclosed with rustless steel gauze, to prevent silt from blocking eyelet in the outside of monitoring/medicine feeding hole pipe 21.
2 ~ 3 sample spaces of two ends in casing 1 are placed with by upper-lower position the pedotheque as simulation aeration zone and the pedotheque as simulation anaerobic condition (zone of saturation) adopted by selected survey region, in casing 1, remaining sample space at middle part are placed with pollutant and repair medium 27(Fig. 5).The pedotheque of simulation aeration zone is sandy silt, and its particle diameter is 0.005 ~ 0.075
Mm, infiltration coefficient is 0.38 ~ 0.54m/d.The pedotheque of simulation anaerobic condition is grating river sand, and its particle diameter is 0.1 ~ 2.0
Mm, infiltration coefficient is 18 ~ 21m/d.Pedotheque 26 shown in Fig. 5 i.e. includes pedotheque and the pedotheque of simulation anaerobic condition simulating aeration zone.
On-Line Monitor Device includes water quality monitor, water-level instrumentation and temperature monitor；Wherein, water quality monitor includes the multiple conventional sense devices such as pH monitor, dissolved oxygen monitor, monitored conductivity instrument and oxidation-reduction potential monitor；Monitoring probe on above-mentioned each monitor is plugged in monitoring/medicine feeding hole pipe 21, the monitoring probe of one or several detectors pluggable in monitoring/medicine feeding hole pipe 21 that experiment is selected, the data wire of monitor is connected on middle control computer, the experiment detection signal gathered with transmission and process.
The present invention is also shaped with a capping casing 1 sealing lid (not shown) suitable for reading, covers in sealing and is connected to steam vent, is connected to the exhaustor of band control valve on steam vent.Seal lid can be by gemel connection on casing 1, it is also possible to be to be separately provided, suitable for reading to casing 1 of buckle closure in use.
As Figure 1 and Figure 4, described aerator includes the parts such as air supply header 19, gas-distribution pipe 8 and aeration tube 24.Aeration tube 24 is to be the pvc pipe of 10mm at caliber, axially has double pore on tube wall along body, and the aperture of each pore is 1mm, and in every steam vent, the pitch-row of two adjacent air holes is 5mm, and two steam vents center of circle angle on body radial section is 45 °.The bottom (Fig. 4) in each sample space separated by porous water dispensing board 23 that aeration tube 24 is horizontally set in casing 1, one end of aeration tube 24 is connected on gas-distribution pipe 8, the edge (Fig. 4) of gas-distribution pipe 8 each sample space in being plugged on casing 1, the upper end of gas-distribution pipe 8 is connected to be arranged on the air supply header 19 above casing 1 (Fig. 1).Equipped with aeration control valve 4 on every gas-distribution pipe 8, air supply header 19 is connected with aerator or high-pressure nitrogen bottle, to provide air or nitrogen, repair by regulating and controlling the aeration control valve 4 pedotheque in casing 1 and pollutant medium produces aeration, thus form the simulation of underground reservoir redox environment.The effect of aerator is the redox environment in simulation underground reservoir, can simulate the multiple redox state in the presence of aerobic, the double various natural environment such as oxygen, anaerobism.
As shown in Figure 1, shown in Figure 5, the described simulation device that drenches with rain is arranged on the top of described Transport And Transformation analog, includes the parts such as water main 17, water supply arm 18 and some showers 5.Shower 5 is the pvc pipe of caliber 10mm, axially has double draining hole on tube wall along body, and the aperture in each water hole is 1mm, and in every osculum, the pitch-row in two adjacent water holes is 5mm, and two osculums center of circle angle on body radial section is 45 °.In Fig. 3, Fig. 5, shower 5 is divided into three groups, and often the shower 5 in group be arranged in parallel and level is laid in the top of casing 1.Every shower 5 connects a bit of standpipe by coil 7, and the upper end of standpipe is connected on water supply arm 18, and all water supply arms 18 are commonly connected on water main 17, and equipped with the control valve 6 that drenches with rain on every standpipe, the control valve that drenches with rain 6 is electromagnetic valve.Water main 17 can connect water pump or tap water pipe network, water pump or tap water pipe network supply water, and forms rainfall simulation by regulation and control Water supply switch valve.Water main 17 has a dosing mouth of pipe 25(Fig. 1), the dosing mouth of pipe is provided with closure, after opening can dosing inwards, by the dripping effect of rainfall, medicine is brought in casing 1, such that it is able to form the pollution of area source diffusion simulations of persistence in casing 1.Simulate the device that drenches with rain and can be lifted on the top of casing 1 by crane, by the regulation of crane, make the shower height away from casing 1 end face be adjusted between 100 ~ 500mm；Meanwhile, simulating the device that drenches with rain and also can carry out left and right translation adjustment according to requirement of experiment, translation adjustment distance is at about 400mm.The effect simulating the device that drenches with rain is the rainfall in simulating natural environment, can simulate the rainfall state appeared in the various natural environment such as light rain, moderate rain, heavy rain, heavy rain, also can the formation of Simulated Acid Rain after dosing.
It is any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that the pollutant placed in each sample space in casing 1 repair medium, or two of which or the two or more mixture mixed in any proportion.Adjacent sample spaces in casing 1 is placed can be identical, can also be that different pollutant repair medium.
Middle control computer is a part for whole simulation experiment platform, and its function is online acquisition real-time, automatic and processes the polluted underground water repair process data that various on-Line Monitor Device gathers.By the regulation and control to the electromagnetic valve on the water inlet of casing 1 and/or outlet connecting pipeline of the middle control computer, Transport And Transformation analog can realize the flow to subsoil water and the simulation of flow velocity and regulation and control.By the monitoring information collection to on-Line Monitor Device of the middle control computer, Transport And Transformation analog can realize the simulation to hydrodynamic field and Groundwater chemical fields.
By the water inlet on Transport And Transformation analog or monitoring/medicine feeding hole pipe add medicine, Transport And Transformation analog can realize the POLLUTION SIMULATION of subsoil water in the anaerobic condition in studied basin；By simulation drench with rain device water supply in add medicine, can realize in Transport And Transformation analog studied basin aeration zone and anaerobic condition is from contaminants and to underground water produce POLLUTION SIMULATION.
Embodiment 2: underground water pollution Transport And Transformation analogue experiment method integrated with final home to return to.
The present embodiment is to carry out on the analog platform integrated with final home to return to of the underground water pollution Transport And Transformation described in embodiment 1, specifically includes following steps:
One, soil horizon in aerated zone and zone of saturation soil layer higher slice at studied basin geologic section gather pedotheque, the pedotheque gathered is refined and after dried, according to locality corresponding geologic structure relation, in 2 ~ 3 sample spaces of the described tank ends that pedotheque is the most uniformly inserted；The thickness of the same layer pedotheque inserted in each sample space is essentially identical, and is on the sustained height of described casing；The filling total height of pedotheque is than the suitable for reading low 50mm of described casing；According to studied basin geologic section and features of pollution, selecting pollutant to repair medium, the most uniformly insert in the middle part of described casing in remaining sample space, pollutant repair the packed height suitable for reading low 50mm than described casing of medium.
Wherein, refinement and the dried mode of pedotheque are, collection pedotheque it is layered respectively from aeration zone and the zone of saturation of studied basin geologic section, and the same layer sample gathered is carried out uniform mixed processing, it is placed on one piece of Polypropylence Sheet after all same layer pedotheque mixing that will gather, after breaking into pieces, mixing, pave into a square, foursquare pedotheque is drawn diagonal, pedotheque is divided into four parts, being merged into a reservation relative for drift angle two parts, residue soil sample is cast out.The pedotheque of the different layers retained is carried out micronization processes respectively, first that pedotheque is fine ground, stone foreign material therein are sorted out, again pedotheque is placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then pedotheque sieved process with the soil sieve of soil bobbing machine and 50 ~ 200 mesh.
It can be any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that pollutant repair medium, or two of which or the two or more mixture mixed in any proportion.Before being filled into Transport And Transformation analog, first the pollutant of single are repaired medium tap water to clean up, it is subsequently placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then carry out sieving with the soil sieve of soil bobbing machine and 50 ~ 200 mesh process after stand-by.Also dependent on the needs of Experimental Procedures, pollutant the most of the same race are repaired the ratio that medium empirically requires to determine, with stand-by after soil bobbing machine mix homogeneously.
Two, detection position is determined according to the requirement of Experimental Procedures, and the monitoring/medicine feeding hole pipe 21 selected according to simulation experiment in casing 1 inserts the monitoring probe of each on-Line Monitor Device, monitoring probe insertion depth according to Experimental Procedures it needs to be determined that, the data wire of each on-Line Monitor Device is all connected on middle control computer；According to the requirement of Experimental Procedures, on casing 1, selected some thief hatch are as sample collecting point, extract sealing plug and be respectively mounted sampler on selected thief hatch.
Three, opening the electromagnetic valve on the water inlet connecting pipeline of casing 1, continuous water filling in casing 1, current are entered in casing 1 by water inlet.Water flooding regime is first from undermost water inlet slowly injected clear water, every 24 hours positions to water filling water inlet of up conversion, until stopping supplying water after transforming to the superiors' water inlet water filling 24 hours, making the pedotheque in casing 1 and pollutant repair medium to be sufficiently humidified so as to saturated, the pedotheque in casing 1 and the gas in pollutant reparation medium are discharged.
Four, the water level that empirically code needs adjusts the tank height of water inlet, opening the electromagnetic valve on water inlet connecting pipeline and start water inlet, current enter in casing 1 by water inlet, along with the carrying out of water filling, open the electromagnetic valve on outlet connecting pipeline, make current pass through outlet and flow out casing 1.Water level information in casing 1 is sent to middle control computer by the on-Line Monitor Device being arranged in monitoring/medicine feeding hole pipe 21, by the control to the electromagnetic valve on water inlet and/or outlet connecting pipeline, by stable in experiment setting value for the simulated groundwater position flowed through in casing 1.
Five, the medicine as polluter that experiment uses is joined in the pedotheque in casing 1 by the water inlet of Transport And Transformation analog, monitoring/medicine feeding hole pipe or shower, it is achieved chronic pollution source or the simulation of interim polluter.
Wherein, first in the water tank being connected with water inlet, add experimental drug, simulation sewage is become after being thoroughly mixed, the water inlet flow velocity determined according to Experimental Procedures and water inlet duration, after adjusting the position height of water tank of connection water inlet, in casing 1, injected the simulation sewage of elongate member when meeting water inlet flow velocity and water inlet by water inlet 2, be consequently formed the simulation of pollution of underground aquifers process containing the special contamination factor.
By the administering mode of monitoring/medicine feeding hole pipe it is: first adjust the hydrodynamic field in Transport And Transformation analog according to the requirement of Experimental Procedures, then select a monitoring/medicine feeding hole pipe 21 to inject a kind of experimental drug according to Experimental Procedures, then can form persistence or the simulation of provisional single source contamination process in the pedotheque in Transport And Transformation analog.Also it is to select multiple monitorings/medicine feeding hole pipe 21 to be injected simultaneously into different experimental drugs respectively, then can form persistence or provisional multi-source cross-contamination diffusion simulations in the pedotheque in Transport And Transformation analog.
It is: first in water pump supply tank, to add experimental drug, be thoroughly mixed by the administering mode of shower；Then, set rainfall intensity, rain time according to the requirement of Experimental Procedures, select certain or the whole region on pedotheque surface in casing 1 to throw in district as medicine according to the requirement of Experimental Procedures simultaneously；Again, after the hydrodynamic field in adjusting Transport And Transformation analog, control is simulated the device that drenches with rain and is thrown in district's simulated rainfall at selected medicine, can form the rainfall containing specifying pollution factor and simulate.By the dripping effect of rainfall into, medicine is brought the surface of pedotheque in casing 1, the surface of pedotheque in Transport And Transformation analog can form the pollution of area source diffusion simulations of persistence.
Five, in the administration process in simulating pollution source or after administration process, can start with various on-Line Monitor Device and middle control computer the various parameters in the water cycle process in Transport And Transformation analog are carried out real-time, automatically gather, to obtain the change experimental data of underground water pollution Transport And Transformation and final home to return to.
Claims (8)
1. underground water pollution Transport And Transformation and a final home to return to integrated mobile analog platform, is characterized in that, drenches with rain device, on-Line Monitor Device and middle control computer including: Transport And Transformation analog, aerator, simulation；
The rectangular box that main body is open top of described Transport And Transformation analog, described casing uses poly (methyl methacrylate) plate to process, and periphery is provided with the rustless steel square tube reinforced and support；Inside the plate face of the forward and backward wallboard of described casing, the spacing of 100mm being provided with some upright spill draw-in grooves, the lower edge of described draw-in groove contacts with the base plate of described casing, and the upper edge of described draw-in groove is suitable for reading concordant with described casing；Forward and backward wallboard at described casing is upper puts the porous water dispensing board of one rectangle of grafting between the described draw-in groove of relative two, the lower edge of described porous water dispensing board contacts with the base plate of described casing, the upper edge of described porous water dispensing board and the flush suitable for reading of described casing, be densely covered with the flowing hole eye that aperture is 2mm on the plate face of described porous water dispensing board；
The end side wallboard of described casing is connected to some water inlets that layering is arranged, the sidewall paneling of the other end of described casing is connected to some outlets that layering is arranged, described water inlet and described outlet are made by the lucite tube that aperture is 8mm, in matrix distribution on the sidewall paneling of described casing；
Be respectively arranged with some layering settings on the forward and backward wallboard of described casing is the thief hatch that 8mm lucite tube is made by aperture, described thief hatch is distributed on the front panel corresponding to each sample space separated by described porous water dispensing board and squab panel, each described thief hatch is provided with sampler or is sealed with sealing plug, being respectively arranged with the string in longitudinal arrangement is the overfall that 8mm lucite tube is made at the two ends of the forward and backward wallboard of described casing by aperture, is provided with sampler or is connected to the overflow pipe of band control valve at described overfall；
The base plate of described casing has some draining mudholes, a draining discharge pipeline it is connected in the base opening of each draining mudhole, the pvc pipe of the effective a diameter of 40mm of described draining spoil disposal is made, it is sealed with rustless steel gauze at the top opening of described draining mudhole, being connected to draining spoil disposal control valve on described draining discharge pipeline, the lower end of all described draining discharge pipelines is commonly connected on a horizontal draining spoil disposal house steward；
Described casing is arranged on a chassis, is connected to some castors in the bottom surface on described chassis；Being respectively arranged with crane at the two ends on described chassis, lay water tank on described crane, a water tank is connected on the water inlet of described casing by connecting pipeline, and another water tank is connected on the outlet of described casing by connecting pipeline；Being separately installed with electromagnetic valve and effusion meter on described connecting pipeline, the data wire on described effusion meter is connected on described middle control computer；
The each sample space separated by described porous water dispensing board in described casing is plugged with the some upright monitoring being made up of the pvc pipe that caliber is 20mm/medicine feeding hole pipes respectively, the bottom of described monitoring/medicine feeding hole pipe contacts with the base plate of described casing, the top of described monitoring/medicine feeding hole pipe and the flush suitable for reading of described casing；On the tube wall of described monitoring/medicine feeding hole pipe, circumferentially symmetry has four row apertures is the eyelet of 2mm, and in each column eyelet, the spacing of two adjacent eyelets is 10mm, is enclosed with the rustless steel gauze blocking eyelet on described monitoring/medicine feeding hole pipe；
2 ~ 3 sample spaces of two ends in described casing are placed with by upper-lower position the pedotheque as simulation aeration zone and the pedotheque as simulation anaerobic condition adopted by selected survey region, in described casing, remaining sample space at middle part are placed with pollutant and repair medium；The pedotheque of described simulation aeration zone is sandy silt, and its particle diameter is 0.005 ~ 0.075mm, and infiltration coefficient is 0.38 ~ 0.54m/d；The pedotheque of described simulation anaerobic condition is grating river sand, and its particle diameter is 0.1 ~ 2.0mm, and infiltration coefficient is 18 ~ 21m/d；
Described on-Line Monitor Device includes water quality monitor, water-level instrumentation and temperature monitor；Described water quality monitor includes pH monitor, dissolved oxygen monitor, monitored conductivity instrument and oxidation-reduction potential monitor；Monitoring probe on above-mentioned each monitor is plugged in described monitoring/medicine feeding hole pipe, the monitoring probe of one or several detectors it is plugged with in described monitoring/medicine feeding hole pipe, the data wire of described monitor is connected on described middle control computer, the experiment detection signal gathered with transmission and process；
Suitable for reading at described casing is provided with the sealing lid that can start or fasten, and covers in described sealing and is connected to steam vent, is connected to the exhaustor of band control valve on described steam vent；
Described aerator includes air supply header, gas-distribution pipe and aeration tube；Described aeration tube is the pvc pipe of caliber 10mm, axially has double pore on tube wall along body, and the aperture of each pore is 1mm, and in every steam vent, the pitch-row of two adjacent air holes is 5mm, and two steam vents center of circle angle on body radial section is 45 °；The bottom of each sample space separated by described porous water dispensing board that described aeration tube is horizontally set in described casing, one end of described aeration tube is connected to be plugged in described casing on the described gas-distribution pipe in each sample space, the upper end of described gas-distribution pipe is connected to be arranged on the described air supply header above described casing, equipped with aeration control valve on gas-distribution pipe every described, described air supply header is supplied by aerator or high-pressure nitrogen bottle, repair by regulating and controlling described aeration control valve pedotheque in described casing and pollutant medium produces aeration, thus form the simulation of underground reservoir redox environment；
The described simulation device that drenches with rain includes water main, water supply arm and some showers；Described shower is the pvc pipe of caliber 10mm, axially has double draining hole on tube wall along body, and the aperture in each water hole is 1mm, and in every osculum, the pitch-row in two adjacent water holes is 5mm, and two osculums center of circle angle on body radial section is 45 °；Described shower is divided into some groups, and often the described shower in group be arranged in parallel and level is laid in the top of described casing；Every described shower connects standpipe by coil, and the upper end of described standpipe is connected on described water supply arm, and all described water supply arms are commonly connected on described water main, equipped with the control valve that drenches with rain on standpipe every described；Described water main is supplied water by water pump or tap water pipe network, forms rainfall simulation by regulation and control Water supply switch valve.
Underground water pollution Transport And Transformation the most according to claim 1 and final home to return to integrated mobile analog platform, it is characterized in that, it is any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that the described pollutant placed in each sample space in described casing repair medium, or two of which or the two or more mixture mixed；Place in adjacent sample spaces in described casing can be that identical or different pollutant repair medium.
3. a underground water pollution Transport And Transformation analogue experiment method integrated with final home to return to, is characterized in that, relies on the underground water pollution Transport And Transformation described in claim 1 to be simulated experiment with final home to return to integrated mobile analog platform, including following operating procedure:
A, gather pedotheque at the soil horizon in aerated zone of studied basin geologic section and zone of saturation soil layer higher slice, the pedotheque gathered is refined and after dried, according to locality corresponding geologic structure relation, in 2 ~ 3 sample spaces of the described tank ends that pedotheque is the most uniformly inserted；The thickness of the same layer pedotheque inserted in each sample space is essentially identical, and is on the sustained height of described casing；The filling total height of pedotheque is than the suitable for reading low 50mm of described casing；According to studied basin geologic section and features of pollution, selecting pollutant to repair medium, the most uniformly insert in the middle part of described casing in remaining sample space, pollutant repair the packed height suitable for reading low 50mm than described casing of medium；
B, requirement according to Experimental Procedures determine detection position, and the monitoring/medicine feeding hole pipe selected according to simulation experiment in described casing inserts the monitoring probe of described on-Line Monitor Device, monitoring probe insertion depth according to Experimental Procedures it needs to be determined that, the data wire of described on-Line Monitor Device is all connected on middle control computer；According to the requirement of Experimental Procedures, on described casing, selected thief hatch is as sample collecting point, extracts sealing plug and be respectively mounted sampler on selected described thief hatch；
C, the electromagnetic valve opened on the water inlet connecting pipeline of described casing, continuous water filling in described casing, current enter described casing by water inlet；Water flooding regime is first from undermost water inlet slowly injected clear water, every 24 hours positions to water filling water inlet of up conversion, until stopping supplying water after transforming to the superiors' water inlet water filling 24 hours, making the pedotheque in described casing and pollutant repair medium to be sufficiently humidified so as to saturated, the pedotheque in described casing and the gas in pollutant reparation medium are discharged；
The water level that d, empirically code need adjusts the tank height of water inlet, open the electromagnetic valve on water inlet connecting pipeline and start water inlet, current enter in described casing by water inlet, carrying out along with water filling, open the electromagnetic valve on outlet connecting pipeline, make current flow out described casing by outlet；Water level information in casing is sent to middle control computer by the described on-Line Monitor Device being arranged in monitoring/medicine feeding hole pipe, by the control to the electromagnetic valve on water inlet and/or outlet connecting pipeline, by stable in experiment setting value for the simulated groundwater position flowed through in described casing；
E, the medicine as polluter that experiment uses is joined in the pedotheque in described casing by the water inlet of described Transport And Transformation analog, monitoring/medicine feeding hole pipe or shower, it is achieved the simulation of chronic pollution source or temporarily polluter and point-source pollution or the simulation of pollution of area source；
F, in the administration process in simulating pollution source or after administration process, can start with described on-Line Monitor Device and described middle control computer the various parameters in the water cycle process in described Transport And Transformation analog are carried out real-time, automatically gather, to obtain the change experimental data of underground water pollution Transport And Transformation and final home to return to.
Underground water pollution Transport And Transformation the most according to claim 3 analogue experiment method integrated with final home to return to, it is characterized in that, refinement and the dried mode of the described pedotheque in step a are, collection pedotheque it is layered respectively from aeration zone and the zone of saturation of studied basin geologic section, and the same layer sample gathered is carried out uniform mixed processing, it is placed on one piece of Polypropylence Sheet after all same layer pedotheque mixing that will gather, break into pieces, after mixing, pave into a square, foursquare pedotheque is drawn diagonal, pedotheque is divided into four parts, it is merged into a reservation relative for drift angle two parts, residue soil sample is cast out；The pedotheque of the different layers retained is carried out micronization processes respectively, first that pedotheque is fine ground, stone foreign material therein are sorted out, again pedotheque is placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then pedotheque sieved process with the soil sieve of soil bobbing machine and 50 ~ 200 mesh.
Underground water pollution Transport And Transformation the most according to claim 3 analogue experiment method integrated with final home to return to, it is characterized in that, it can be any one in activated carbon, Zero-valent Iron, zeolite, haydite, slag isoreactivity material that described pollutant repair medium, or two of which or the two or more mixture mixed in any proportion；Before being filled into described Transport And Transformation analog, first the described pollutant of single are repaired medium tap water to clean up, it is subsequently placed in Muffle furnace, toast 12 hours at a temperature of 60 DEG C, take out in stove after drying, then carry out sieving with the soil sieve of soil bobbing machine and 50 ~ 200 mesh process after stand-by；Also dependent on the needs of Experimental Procedures, pollutant the most of the same race are repaired after medium empirically requires the ratio soil bobbing machine mix homogeneously determined stand-by.
Underground water pollution Transport And Transformation the most according to claim 3 analogue experiment method integrated with final home to return to, it is characterized in that, step e by the administering mode of water inlet is: in the water tank being connected with water inlet, first add experimental drug, simulation sewage is become after being thoroughly mixed, the water inlet flow velocity determined according to Experimental Procedures and water inlet duration, after adjusting the position height of water tank of connection water inlet, in described casing, the simulation sewage of elongate member when meeting water inlet flow velocity and water inlet is injected by water inlet, it is consequently formed the simulation of pollution of underground aquifers process containing the special contamination factor.
Underground water pollution Transport And Transformation the most according to claim 3 analogue experiment method integrated with final home to return to, it is characterized in that, step e by the administering mode of monitoring/medicine feeding hole pipe is: first adjust the hydrodynamic field in described Transport And Transformation analog according to the requirement of Experimental Procedures, then select a monitoring/medicine feeding hole pipe to inject a kind of experimental drug according to Experimental Procedures, then can form persistence or the simulation of provisional single source contamination process in the pedotheque in described Transport And Transformation analog；Or select multiple monitoring/medicine feeding hole pipe to be injected simultaneously into different experimental drugs respectively, then can form persistence or provisional multi-source cross-contamination diffusion simulations in the pedotheque in described Transport And Transformation analog.
Underground water pollution Transport And Transformation the most according to claim 3 analogue experiment method integrated with final home to return to, is characterized in that, by the administering mode of shower be: first in step e, adds experimental drug, be thoroughly mixed in water pump supply tank；Then, set rainfall intensity, rain time according to the requirement of Experimental Procedures, select certain or the whole region on pedotheque surface in casing to throw in district as medicine according to the requirement of Experimental Procedures simultaneously；Again, after the hydrodynamic field in adjusting described Transport And Transformation analog, control the described simulation device that drenches with rain and throw in district's simulated rainfall at selected medicine, can be formed containing the rainfall simulation specifying pollution factor；By the dripping effect of rainfall into, medicine is brought the surface of pedotheque in described casing, the surface of pedotheque in described Transport And Transformation analog can form the pollution of area source diffusion simulations of persistence.
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| CN105130137B (en) * | 2015-10-15 | 2017-03-15 | 中国地质大学（武汉） | The in-situ remediation system of compound polluted underground water and restorative procedure |
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