CN109900596A - A kind of experimental provision for simulating Shallow Groundwater Pollution regulation effect - Google Patents
A kind of experimental provision for simulating Shallow Groundwater Pollution regulation effect Download PDFInfo
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- CN109900596A CN109900596A CN201910114313.2A CN201910114313A CN109900596A CN 109900596 A CN109900596 A CN 109900596A CN 201910114313 A CN201910114313 A CN 201910114313A CN 109900596 A CN109900596 A CN 109900596A
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Abstract
The present invention relates to a kind of experimental provisions for simulating Shallow Groundwater Pollution regulation effect, including for simulating sub-surface simulation box, be respectively placed in simulation two sides the first water tank and the second water tank, it is characterized by: first water tank, which is connected with first, determines water head equipment, second water tank is connected with second and determines water head equipment, and described first, which determines water head equipment and described second, determines water head equipment and be respectively used to the water level of first water tank and the second water tank maintaining steady state value；The simulation box connects the first water tank by the first porous disc, second water tank is connected by the second porous disc, first cistern water level is higher than second cistern water level, is equipped with several valves in the bottom of the simulation box, the valve is connected with the water plug for simulating pumped well.Experimental provision is easy to operate in the present invention, effect is intuitive, result is accurate.
Description
Technical field
The present invention relates to a kind of experimental provision more particularly to a kind of experiment dresses for simulating Shallow Groundwater Pollution regulation effect
It sets.
Background technique
Underground water is the important component of land water resource.Instantly, underground water pollution problem becomes increasingly conspicuous, and earth's surface is all kinds of
Sewage infiltrates the potential pollution source for becoming and endangering body of groundwater safety, the fortune of accurate simulation and monitoring underground water pollutant
Condition of shifting one's love becomes the important prerequisite of underground water pollution prevention and treatment.Have using model casing to Shallow Groundwater Pollution Controlling research important
Meaning.
Summary of the invention
It is an object of the invention to which the diffusion mobility rule of water pollutant is studied in two dimensional cross-section by simulator,
And further discuss this control measure of pumped well to the effect of underground water pollution control, and as example comparison come obtained by verifying
The universality of rule, in order to further prevent to pollute with treating groundwater.
The technical solution used in the present invention are as follows: a kind of experimental provision for simulating Shallow Groundwater Pollution regulation effect, packet
The first water tank and the second water tank for including the simulation box for simulating sub-surface, being respectively placed in simulation two sides, first water tank
It is connected with first and determines water head equipment, second water tank is connected with second and determines water head equipment, and described first determines water head equipment and institute
It states second and determines water head equipment and be respectively used to the water level of first water tank and the second water tank maintaining steady state value, so that simulation
Groundwater environment remains unchanged, and is allowed to reduce for a constant influence of the change because of groundwater environment to Contaminants Transport；It is described
Simulation box connects the first water tank by the first porous disc, connects second water tank, first water tank by the second porous disc
Water level is higher than second cistern water level, is equipped with several valves in the bottom of the simulation box, the valve is connected with for mould
The water plug of quasi- pumped well.
Further, several valves uniformly distinguish simulation box bottom.
Further, first porous disc and the second porous disc include glass plate and set every in sand mechanism, glass plate
Have several through-holes, every sand mechanism include every emery cloth and steel wire, it is described to be fixed on steel wire every emery cloth, every emery cloth be equipped with two
Layer.
Further, the simulation box the first side wall uses transparency glass plate, and the first side wall is placed in the first porous disc
And second between porous disc.
It further, further include lucite spacer, the lucite spacer is removably set in the simulation box,
Lucite spacer is acrylic board.Acrylic board tension is good, can carry the hydraulic pressure of some strength, and transparent, facilitates observation
Migration process.
Further, it is equipped with several through-holes in the second sidewall of simulation box, pressure sensor is installed in through-hole, institute
State pressure sensor and be connected with data acquisition device, the second sidewall be placed in first porous disc and the second porous disc it
Between.
Further, the simulation box is cube cabinet, fills sand in the simulation box.
Further, first Water in Water Tank includes coloring agent salt ion.
Further, scale is equipped in the simulation box, the scale is used for the riding position of quantitative organic partition.
Further, the bottom of the simulation box is equipped with every sand mechanism, it is described every sand mechanism include every emery cloth and steel wire,
It is described to be fixed on steel wire every emery cloth, it is equipped with two layers every emery cloth.
Further, the valve is ball valve.
Further, first determines water head equipment and second and determines water head equipment and be separately mounted to the first water tank and the second water tank
Bottom.
The utility model has the advantages that the present invention provides, one kind is easy to operate, effect is intuitive, the accurate shallow-layer of result caused by of the invention
Underground water pollution control effect experiment model.Lucite spacer is used for simulating cut-pff wall, the design of ball valve and water plug
In simulation pumped well, by the flow condition of monitoring pollution object, hydraulic pressure be distributed to obtain prevention and treatment phreatic water effective measures and
Scheme；Effectively separating water tank and simulation box every sand plate in the present invention prevents water and sand mixed influence experimental result, mentions
High conclusion accuracy, the present invention will contain coloring agent salt ion and launch into the first water tank, convenient for observing the flow regime of sewage.This
Transparency glass plate is set convenient for observing water flow inside situation outside by the first side plate in invention.
Detailed description of the invention
The structural schematic diagram of experimental provision in Fig. 1 present invention；
The schematic perspective view of water tank and simulation box in Fig. 2 present invention；
The main view of water tank and simulation box in Fig. 3 present invention；
The bottom view of water tank and simulation box in Fig. 4 present invention；
The conductivity sensor distribution map of data is acquired in Fig. 5 present invention in table 1；
1, simulation box in figure, the 2, first water tank, the 3, second water tank, the 4, first porous disc, the 5, second porous disc, the 6, first side
Plate, the 7, second side plate, 8, first determines water head equipment, and 9, second determines water head equipment, 10, ball valve, 11, water plug, and 12, data adopt
Acquisition means, 13, first through hole, 14, poly (methyl methacrylate) plate, 15, scale, the 16, second through-hole, 17, third through-hole, 18, fourth hole.
Specific embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description, it should be appreciated that
The protection scope of the present invention is not limited by the specific implementation manner.
As shown in Figs. 1-5, one of present invention simulates the experimental provision of Shallow Groundwater Pollution regulation effect, including mould
Quasi- case 1, the first water tank 2, the second water tank 3 and detection system, simulation box 1 is interior to be filled with sand, specially quartz sand, for simulating
Water is filled in sub-surface, the first water tank 2 and the second water tank 3, simulation box 1 is arranged in the first water tank 2 and the second water tank 3
Two sides, the first water tank 2 and simulation box 1 are connected by the first porous disc 4, and the second water tank 3 and simulation box 1 pass through the second porous disc 5
It connects, the water in the first water tank 2 is flow in simulation box 1 by the first porous disc 4, then passes through the second porous disc 5 of the other side
It flow at the second water tank 3.In order to guarantee the flow direction of water, 2 water level of the first water tank is higher than 3 water level of the second water tank, device two sides
Water tank bottom water head equipment 8 and second is determined with first by water pipe respectively determine water head equipment 9 and be connected.Determine to be equipped in water head equipment
Sink and overflow plate, by adjusting determine water head equipment sink height to change and determining device two sides water tank level difference in height,
Realize the function of keeping water tank water pressure invariableness.
Simulation water tank is cube cabinet, including bottom and side wall, and side wall includes the first porous disc for connecting the first water tank 2
4, the second porous disc 5 of the second water tank 3, the first side wall and second being placed between the first porous disc 4 and the second porous disc 5 are connected
Side wall, the first porous disc 4 and the second porous disc 5 include being equipped with the glass plate of third through-hole 17 and every in sand mechanism, glass plate
It include three layers every sand mechanism, respectively every emery cloth, steel wire and every emery cloth, two layers every emery cloth seam equipped with several third through-holes 17
It closes on steel wire.It is that water is allowed to pass through every the effect of sand mechanism, prevents the sand in simulation box 1 from passing through.First side plate 6 is transparent glass
Glass plate, convenient for situation in observation case, the second side plate 7 is the glass plate equipped with several first through hole 13 and the second through-hole 16, the
Pressure sensor is installed, which is used to detect the hydraulic pressure at place, convenient for obtaining in the first through hole 13 of two side plates 7
Pressure distribution in entire flow field, it is solid by screw thread that 13 inner wall of first through hole is equipped with screw thread, pressure sensor and first through hole 13
Fixed connection.Pressure sensor is connected with data acquisition device 12, and collected pressure data is transmitted to data acquisition device 12.
By the collected pressure data of pressure sensor for reflecting water-bearing layer pressure field in the present invention, so that seepage field is portrayed,
And then obtain water flow movement rule.
The present invention is equipped with conductivity sensor in the second through-hole, detects the conductivity concentration of point, is obtained with indirect
To the migration process of pollutant, and then the influence to each point conductivity is put in the position that pumped well and partition can be obtained, in device
First through hole and the setting of the second through-hole interval.
The bottom of simulation box 1 is equipped with glass plate and every sand mechanism, and glass plate is equipped with 9 equally distributed fourth holes
18,9 fourth holes 18 are to be uniformly distributed on the direction that the first water tank 2 connects the second water tank 3 in one-dimensional square, fourth hole
Valve is equipped at 18, the valve in the present invention is ball valve 10, and ball valve 10 connects water plug 11, when opening ball valve 10 and the dress that draws water
When setting 11, start to draw water, simulates pumped well.Draw water flow velocity and pump-out, mould are adjusted by adjusting the draft of water plug 11
Pumped well under quasi- different conditions.
In order to simulate the effect of cut-pff wall, poly (methyl methacrylate) plate 14 has been assigned in simulation box 1, and poly (methyl methacrylate) plate 14 can be changed
Influence of the position research antiseepage wall displacement to regulation effect.Poly (methyl methacrylate) plate 14 in the present invention is acrylic board.
For the ease of Diffusion Law of the observation contaminant water in water flow, dispensing can be pinpointed in the first water tank 2 containing coloring agent
Salt ion.
It is equipped with scale 15 in 1 side wall upper limb of simulation box, facilitates the riding position of the organic partition of quantitative analysis.
It is tested using above-mentioned apparatus:
With taking 200ml concentration to be the Nacl solution of 0.302g/ml as solute, the conductivity for measuring the solution is
184.7ms/cm.This time test opens the pumped well at the first water tank of distance 40cm, and pumped well power is 35.61ml/s.This
Cut-pff wall is not used in secondary test.
14:30 launches solute 200ml in the position of the first water tank of simulation box distance 20cm, then passes through simulation box internal conductance
Rate sensor detects that Nacl solution concentration is as shown in the table, as shown in figure 5, the conductivity sensor number in acquisition figure in wire
According to first row conductivity sensor refers to the conductivity sensor in first row wire from top to bottom, and second row conductivity passes
Sensor refers to the conductivity sensor in bottom row's wire, the data and conductivity sensor phase in Fig. 5 of every row in table
It is corresponding.Eight numerical value of each period acquisition refer to that there are eight sensors, each conductance for surveying a position in the corresponding water tank back side
Rate, numerical value of more turning left is smaller, because the influence percolate of partition and pumped well is filtered, conductivity becomes smaller.
Nacl solution concentration is distributed after table 1 launches solute
By upper Biao Ke get, after launching one minute, release position is dense, higher, other bit comparisons immediately below release position
Normally.Two surveyed concentration of point sharply drop to normal level at the 20cm of upstream after launching six minutes, at the 40cm of upstream due to
Lower section pumped well is opened, and the component for causing water flow downward is larger to which concentration steeply rises.Concentration starts slowly at the 60cm of downstream
Rise.After launching 14 minutes, concentration returns to substantially common water concentration at the 20cm of upstream, and concentration is dense under pumped well effect at 40cm
Degree falls back to rapidly common water concentration, and concentration continues slowly to rise under the influence of the fraction horizontal classification of solution at 60cm.It throws
After putting 22 minutes, in addition to the point of most downstream, common water concentration is emptied back into.After 35 minutes, without Nacl in experimental box.
This time test embodies the influence that pumped well migrates to solution, i.e. pumped well increases water flow in pumped well position
Vertical component, to reduce the solute concentration of pumped well downstream point.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (10)
1. it is a kind of simulate Shallow Groundwater Pollution regulation effect experimental provision, including for simulating sub-surface simulation box,
It is respectively placed in the first water tank and the second water tank of simulation two sides, it is characterised in that: first water tank is connected with first and determines head
Device, second water tank are connected with second and determine water head equipment, and described first, which determines water head equipment and described second, determines water head equipment
It is respectively used to the water level of first water tank and the second water tank maintaining steady state value；The simulation box is connected by the first porous disc
The first water tank is connect, second water tank is connected by the second porous disc, first cistern water level is higher than second Water in Water Tank
Position is equipped with several valves in the bottom of the simulation box, and the valve is connected with the water plug for simulating pumped well.
2. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: several
Valve uniformly distinguishes simulation box bottom.
3. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: described
First porous disc and the second porous disc include glass plate and every sand mechanism, and glass plate is equipped with several through-holes, every sand mechanism packet
It includes every emery cloth and steel wire, it is described to be fixed on steel wire every emery cloth, it is equipped with two layers every emery cloth.
4. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: described
Simulation box the first side wall uses transparency glass plate, and the first side wall is placed between the first porous disc and the second porous disc.
5. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: also wrap
Lucite spacer is included, the lucite spacer is removably set in the simulation box.
6. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: in mould
The second sidewall of quasi- case is equipped with several through-holes, pressure sensor is equipped in through-hole, the pressure sensor is connected with number
According to acquisition device, the second sidewall is placed between first porous disc and the second porous disc.
7. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: described
Simulation box is cube cabinet, fills sand in the simulation box.
8. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: described
First Water in Water Tank includes coloring agent salt ion.
9. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: described
Scale is equipped in simulation box, the scale is used for the riding position of quantitative organic partition.
10. the experimental provision of simulation Shallow Groundwater Pollution regulation effect according to claim 1, it is characterised in that: institute
The bottom for stating simulation box is equipped with every sand mechanism, it is described every sand mechanism include every emery cloth and steel wire, it is described to be fixed on steel every emery cloth
On silk screen, it is equipped with two layers every emery cloth.
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| CN201910114313.2A CN109900596A (en) | 2019-02-14 | 2019-02-14 | A kind of experimental provision for simulating Shallow Groundwater Pollution regulation effect |
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| CN201910114313.2A CN109900596A (en) | 2019-02-14 | 2019-02-14 | A kind of experimental provision for simulating Shallow Groundwater Pollution regulation effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816177A (en) * | 2020-12-30 | 2021-05-18 | 同济大学 | Riparian zone lateral undercurrent exchange process simulation device based on dye tracing |
| CN113916724A (en) * | 2021-08-30 | 2022-01-11 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | Device and method for simulating diffusion of pathogenic bacteria in soil |
| CN116840103A (en) * | 2023-03-14 | 2023-10-03 | 合肥工业大学 | Experimental device and simulation method for researching pollutant migration of coastal underground reservoir |
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| CN116840103B (en) * | 2023-03-14 | 2024-02-13 | 合肥工业大学 | Experimental device and simulation method for researching pollutant migration of coastal underground reservoir |
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Application publication date: 20190618 |