CN108709953A - A kind of simulator of belt of phreatic fluctuation - Google Patents
A kind of simulator of belt of phreatic fluctuation Download PDFInfo
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- CN108709953A CN108709953A CN201810333560.7A CN201810333560A CN108709953A CN 108709953 A CN108709953 A CN 108709953A CN 201810333560 A CN201810333560 A CN 201810333560A CN 108709953 A CN108709953 A CN 108709953A
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- G—PHYSICS
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N33/246—Earth materials for water content
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- G—PHYSICS
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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Abstract
The present invention provides a kind of simulators of belt of phreatic fluctuation, including：Device pedestal, water tank lifting gear, deoxidation water tank and groundwater level fluctuation column；The simulator of belt of phreatic fluctuation provided in an embodiment of the present invention provides deoxygenated water from deoxidation water tank into groundwater level fluctuation column；The height of deoxidation water tank is controlled by the lifting of water tank lifting gear, and according to law of connected vessels, the height of water level of deoxygenated water in water-level fluctuation column is controllably descended by the height of deoxidation water tank；Therefore it can be used to the water-level fluctuation of water table fluctuation.
Description
Technical field
The present invention relates to water pollution and recovery technique field, the simulation more particularly to a kind of belt of phreatic fluctuation fills
It sets.
Background technology
Underground water is a kind of freshwater resources of stealth, is played an important role in solving the problems, such as shortage of water resources.Oil is
A kind of important industrial chemicals, largely promotes the national economic development and people's living standard improves.However, with stone
Oil exploitation, transport, stores and process, bulk petroleum hydrocarbon (TPH) is used to enter ground water regime by aeration zone, cause processing
The petroleum hydrocarbon contaminated problem of ground water regime of global generally existing has directly harm or potential threat to human health.Underground
Water biology in situ recovery technique directly passes through aerobic or anaerobic biodegradation approach without extracting underground water out using microorganism
It is non-toxic products by petroleum hydrocarbon degradation, extensive use is able to because it is with high efficiency, ecological friendly and economic feasibility.
Belt of phreatic fluctuation, also referred to as underground water-aeration zone interface are in the zone of transition of aeration zone and saturated zone,
Due to its special boundary position, the existing water content close to saturation, and have the presence of oxygen, microorganism is active, in petroleum hydrocarbon
It plays an important role during in situ biodegradation.Belt of phreatic fluctuation be water, solute, microorganism Mixed Zone,
All there is mass exchanges, gas diffusion migration etc. between the aeration zone of the saturated zone and face disposed thereon that are positioned below.
Since property round the clock, seasonal water-level fluctuation (rainfall or suction) lead to the variation of water level height, petroleum hydrocarbon contaminant can be influenced
It migrates and redistributes, can also cause underground water-aeration zone interface variation, oxygen is promoted to transmit and capture, change soil media
Physical attribute (water content, conductivity and temperature etc.) and biological community structure and functional gene abundance.Therefore, Study of The Underground water
The variation of position wave zone, and study the caused Tiny ecosystem variation of its variation and petroleum hydrocarbon biodegradation character, be one very
Important project.
Invention content
The embodiment of the present invention is designed to provide a kind of simulator of belt of phreatic fluctuation, is used for Study of The Underground water
The variation of position wave zone.Specific technical solution is as follows：
A kind of simulator of belt of phreatic fluctuation, including：Device pedestal, water tank lifting gear, deoxidation water tank and ground
Lower water-level fluctuation column；
The water tank lifting gear includes lifting disk and elevating lever, and the lifting disk is located at the top of the elevating lever；It is described
Elevating lever is fixed on described device pedestal；
The deoxidation water tank is placed on the lifting disk；The deoxidation water tank is equipped with water inlet, water outlet and exhaust outlet；
The groundwater level fluctuation column includes：Shell, enclosure interior Simulated Soil medium and be covered in the shell top
The permeable watertight film of portion's opening；The housing sidewall is communicated with liquid level gauge pipe；The groundwater level fluctuation column is fixed on described
On device pedestal；
The groundwater level fluctuation column is preset with maximum stage height and lowest water level height；The maximum stage is high
The groundwater level fluctuation column is from top to bottom divided into the first altitude range, the second height model by degree and the lowest water level height
It encloses and third height range；On the housing wall, it is respectively provided at least within the scope of three height point there are one water sampling mouth,
Each water sampling mouth is provided with sealed valve；In the shell, one has been respectively provided at least within the scope of three height point
A oxygen level sensor；In the shell, it is provided with oxygen distribution sensor in second altitude range, for determining oxygen
Gas content is distributed；In the shell, it is respectively provided at least in the first altitude range, the second altitude range there are one soil mould
The physical attribute monitoring element of quasi- medium；The physical attribute of the Simulated Soil medium includes water content, it is preferable that the soil
The physical attribute of simulation medium further includes conductivity and temperature；
The shell is preferably provided with the mouth of a river, the mouth of a river and the deoxidation within the scope of third height in housing bottom
The water outlet of water tank is connected by pipeline；Preferably, it is provided with water pump on the pipeline.
In certain specific embodiments of the invention, described device pedestal includes from top to bottom table top layer, intermediate bulkhead
Layer and lower partition layer；The elevating lever is fixed on the table top layer；The groundwater level fluctuation column be fixed on it is described in
Spacing board layer.
In certain specific embodiments of the invention, the water tank lifting gear further includes：Lift control system, it is described
Lift control system is electrically connected with the elevating lever, rising and decline for controlling the lifting disk.
In certain specific embodiments of the invention, water inlet, the exhaust outlet of the deoxidation water tank are located at the deoxidation
The top of water tank；The water outlet of the deoxidation water tank is located at the bottom of the deoxidation water tank.
In certain specific embodiments of the invention, the shell of the groundwater level fluctuation column is by colourless transparent material system
At；It is preferred that being made of organic glass.
In certain specific embodiments of the invention, the Simulated Soil medium is the fine sand of 60-100 mesh.
In certain specific embodiments of the invention, there are three water sampling mouths for setting in second altitude range；
Preferably, three water sampling mouths are located at the centre of the maximum stage height, lowest water level height and the two
Highly.
In certain specific embodiments of the invention, the sealed valve is screw-type Mininert valves.
In certain specific embodiments of the invention, further include：Pollutant injection part, the pollutant injection part
For pollutant to be injected in the Simulated Soil medium.
In certain specific embodiments of the invention, further include：Simulated Soil medium acquisition component, the Simulated Soil
Medium acquisition component is for acquiring the Simulated Soil medium.
The simulator of belt of phreatic fluctuation provided in an embodiment of the present invention, from deoxidation water tank to groundwater level fluctuation column
Middle offer deoxygenated water；The height of deoxidation water tank is controlled by the lifting of water tank lifting gear, and according to law of connected vessels, is passed through
The height of deoxidation water tank can control the height of water level by deoxygenated water in groundwater level fluctuation column；Therefore it can be used to water level
The water-level fluctuation of wave zone；
The oxygen content for the corresponding level of ground water simulated can be determined by the oxygen level sensor of setting；Pass through oxygen distribution
Sensor can determine the oxygen content distribution for the corresponding level of ground water simulated；It can be determined by physical attribute monitoring element
The physical attribute of the soil media for the corresponding level of ground water simulated；
Further, by injecting pollutant in the Simulated Soil medium into groundwater level fluctuation column, it can study ground
The biodegradation of pollutant in lower water table fluctuation.
Certainly, implementing any of the products of the present invention must be not necessarily required to reach all the above advantage simultaneously.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the simulator of belt of phreatic fluctuation provided by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of simulators of belt of phreatic fluctuation, as shown in Figure 1, including：Device pedestal 10, water
Case lifting gear 20, deoxidation water tank 30 and groundwater level fluctuation column 40；
The water tank lifting gear 20 includes lifting disk 21 and elevating lever 22, and the lifting disk 21 is located at the elevating lever 22
Top；The elevating lever 22 is fixed on described device pedestal 10；
The deoxidation water tank 30 is placed on the lifting disk 21；The deoxidation water tank 30 is equipped with water inlet 32, water outlet (figure
In be not shown) and exhaust outlet 31；
The groundwater level fluctuation column 40 includes：Shell 41, enclosure interior Simulated Soil medium 42 and be covered in described
The permeable watertight film 43 of case top opening；41 side wall of the shell is communicated with liquid level gauge pipe 44；The groundwater level fluctuation
Column 40 is fixed on described device pedestal 10；
The groundwater level fluctuation column 40 is preset with maximum stage height and lowest water level height；The maximum stage
The height of water level of height and lowest water level height for deoxidation water table fluctuation changes；The maximum stage height and the minimum
The groundwater level fluctuation column is from top to bottom divided into the first altitude range, the second altitude range and third height by height of water level
Range；On 41 wall of the shell, it is respectively provided at least within the scope of three height point there are one water sampling mouth 45, each water
Sample tap is provided with sealed valve；In the shell 41, it is respectively provided at least within the scope of three height point and contains there are one oxygen
Quantity sensor 46；In the shell 41, it is provided with oxygen distribution sensor 47 in second altitude range, for determining not
With the oxygen content distribution in altitude range；In the shell 41, in the first altitude range, the second altitude range respectively extremely
There are one the physical attribute monitoring elements 48 of Simulated Soil medium for few setting；The physical attribute of the Simulated Soil medium includes water
Content, it is preferable that the physical attribute of the Simulated Soil medium further includes conductivity and temperature；
The shell 41 is provided with the mouth of a river within the scope of third height, is used for the entry/exit of water.The mouth of a river and the deoxidation
The water outlet of water tank is connected by pipeline.
The pedestal of the present invention is mainly used for placing and/or fixing water tank lifting gear 20, water-level fluctuation column 40 and others
Associated components；Therefore, without being defined, those skilled in the art can set the specific pattern present invention according to needs are realized
Meter, selection.In some embodiments, device pedestal 10 may include from top to bottom table top layer 11, intermediate bulkhead layer 12
And lower partition layer 13；The elevating lever 22 can be fixed on the table top layer 11；The groundwater level fluctuation column 40 can
To be fixed on the intermediate bulkhead layer.In specific implementation process, groundwater level fluctuation column 40 can pass through table top layer 11 preset
Circular hole be fixed on intermediate bulkhead layer 12 (slightly larger than fluctuation column outer diameter).Since groundwater level fluctuation column 40 is general thinner
It is again heavier after high, filling Simulated Soil medium, it can danger close if do not fixed；And it is passed through table top layer 11 and is fixed on centre
Carrier ring 12 can be more advantageous to the stabilization of groundwater level fluctuation column 40.And lower partition layer can be used for place it is such as optional
The widgets equipment such as peristaltic pump.It is understood that the whole height design and layout of device pedestal 10 can be by this fields
Technical staff samples the factors such as difficulty or ease, system neat appearance and determines according to the height of groundwater level fluctuation column, experimenter.
In specific implementation process, lifting disk 21 can rise or fall along elevating lever；So that deoxidation water tank 30
It can rise or fall, be located at different height.It is described in certain specific embodiments of the invention for the ease of operation
Water tank lifting gear 20 further includes：Lift control system, the lift control system is electrically connected with the elevating lever 22, for controlling
The rising and decline of the lifting disk 21；More specifically, the lift control system can pass through electricity with the elevating lever 22
Line connects.
It should be noted that water tank lifting gear of the present invention, including lift control system therein can be with
It is realized using the prior art, the present invention no longer repeats herein.
In certain specific embodiments of the invention, water inlet 32, the exhaust outlet 31 of deoxidation water tank 30, which can be located at, to be taken off
The top of oxygen water tank 30；And the water outlet of deoxidation water tank 30 can be located at the bottom of deoxidation water tank；In this embodiment, it lifts
A hole corresponding with the water outlet of deoxidation water tank 30 can be arranged in disk 21, so that pipeline can pass through the hole and deoxidation water tank
30 water outlet is connected；Or when the water outlet of deoxidation water tank 30 protrudes from the bottom surface of deoxidation water tank 30, it can to dash forward
The water outlet gone out is embedded in the hole；Such design can also play fixes deoxidation water tank 30 in lifting disk 21 in the horizontal direction
Effect.
It, can be by dissolved oxygens such as tap water, river waters in specific implementation process since the dissolved oxygen concentration of underground water is relatively low
The higher water source of concentration is through nitrogen deoxidation, with the dissolved oxygen concentration in simulated groundwater, herein, by this for simulating underground
The nitrogen deoxygenated water abbreviation deoxygenated water of water；Deoxygenated water is entered from the water inlet 32 of deoxidation water tank 30 in deoxidation water tank 30, deoxidation
Air in water tank 30 can be discharged by the exhaust outlet 31 at top.Deoxygenated water in deoxidation water tank 30 is entered from deoxidation water tank
30 water outlet discharge, enters by pipeline in groundwater level fluctuation column 40.
In the present invention, shell 41 is mainly used for containing Simulated Soil medium 42 and deoxygenated water；Based on this, the present invention is to shell
Shape of body 41 etc. is without being defined；Specifically, the shapes such as certain high cylinder, stupefied cylinder may be used in shell 41；Shell
The height of body 41 can be determined according to the requirement of research experiment；The top of shell 41 is equipped with opening, for built-in to shell 41
Enter and acquire Simulated Soil medium out of shell 41, and for injecting pollutant in the Simulated Soil medium.Specific
In implementation process, the shell of the groundwater level fluctuation column is made of colourless transparent material；It is preferred that being made of organic glass.
In certain specific embodiments of the invention, the mouth of a river preferably is set in 41 bottom of shell, so that level of ground water wave
By bottom inlet/outlet, this realizes underground water and independently feeds the groundwater level fluctuation of pattern dynamic column 40 well, then oxygen is coordinated to contain
The changed simulation with water-level fluctuation of belt of phreatic fluctuation oxygen atmosphere can be achieved in quantity sensor.
Herein, described " permeable watertight film " can be understood as waterproof, one-way ventilating film；When case top is opened
It is on the one hand waterproof after mouth covering permeable watertight film, the volatilization of water in column can be fluctuated with lowering of watertable；It is unidirectional simultaneously saturating
Gas can make gas enter in groundwater level fluctuation column 40, while prevent gaseous volatilization in groundwater level fluctuation column 40 to sky
In gas.The air permeable film can be made to enter in groundwater level fluctuation column in this way, to its reoxygenation；And prevent level of ground water wave
Escaping gas in dynamic column, such as petroleum hydrocarbon outwardly volatilize.In specific implementation process, permeable watertight film may be used
Expanded PTFE (ePTFE) film.More specifically, the GORE- of W. L. Gore & Associates, Inc. company may be usedFilm.Having
In body implementation process, permeable watertight film can coat and fix shell open top by circle hoop；Certain people in the art
Member can also realize covering using other manner；The concrete mode present invention of covering is without limiting.
The particulate material with certain grain size may be used in Simulated Soil medium of the present invention；The present invention's
In some specific implementation modes, the Simulated Soil medium can be the fine sand of 60-100 mesh；The fine sand of described 60-100 mesh,
Can be understood as can by 60 mesh screens, and by 100 mesh screens retain fine sand.Fine sand can be river sand or quartz sand
Deng；Preferably river sand；This is because inventor has found that for river sand compared with other materials, river sand itself possesses organic matter, minerals
Deng the nutrition needed for growth and breeding can be provided for microorganism.This simulation in follow-up belt of phreatic fluctuation using the present invention
Device plays an important role to study Tiny ecosystem variation and petroleum hydrocarbon biodegradation character.In specific implementation process, soil
Simulation medium can fill full groundwater level fluctuation column.Certainly, those skilled in the art can also select to close according to actual needs
The packed height of suitable Simulated Soil medium.
41 side wall of shell is communicated with liquid level gauge pipe 44, can facilitate the liquid level in observation groundwater level fluctuation column 40.It can be with
Understand, since liquid level gauge pipe 44 needs, for observing maximum stage height and lowest water level height, to be embodied
Cheng Zhong, the peak of liquid level gauge pipe 44 should be not less than the most flood of the deoxygenated water in preset groundwater level fluctuation column 40
Position height, the minimum point of liquid level gauge pipe should be less than the lowest water level of the deoxygenated water in preset groundwater level fluctuation column 40
Highly.
Those skilled in the art know that below ground is divided into aeration zone, saturated zone and between aeration zone and saturated zone
Belt of phreatic fluctuation；And belt of phreatic fluctuation can be due to property, seasonality water-level fluctuation (rainfall or suction) round the clock
Lead to the variation of water level height；To simulate this natural situation；Deoxygenated water can be preset out in groundwater level fluctuation column 40
In maximum stage height and deoxygenated water lowest water level height；For example, the maximum stage height for presetting out deoxygenated water is
80cm, the lowest water level height 40cm of deoxygenated water；Described " maximum stage height " and " lowest water level height " is all based on ground
The bottom surface of lower water-level fluctuation column 40 determines.By artificially controlling, it can make the deoxygenated water in groundwater level fluctuation 40
Water level back and forth changes between 40-80cm, and the water level height to simulate nature belt of phreatic fluctuation changes.Based on deoxygenated water
The lowest water level height of maximum stage height and deoxygenated water, so that it may high groundwater level fluctuation 40 is from top to bottom divided into first
Spend range, the second altitude range and third height range；It is the first altitude range to be higher than maximum stage height, for simulating packet
Gas band；It is the second altitude range, the level of ground water for mimic water-depth variation between maximum stage height and lowest water level height
Wave zone；It is third height range less than lowest water level height, for simulating saturated zone.It is filled in application simulation provided by the invention
It sets when being studied, deoxygenated water is injected in groundwater level fluctuation column 40, the maximum value of water level is in scheduled maximum stage
Highly, minimum value is lowest water level height.
For variation of the water level in groundwater level fluctuation column 40 between maximum stage height and lowest water level height；It is main
If according to law of connected vessels, controlled by water tank lifting gear 20 to adjust the height of deoxidation water tank 30.More specifically,
Can deoxygenated water be added in deoxidation water tank 30 first；Deoxygenated water can be by connecting deoxidation water tank 30 and groundwater level fluctuation column 40
Pipeline enter in groundwater level fluctuation column 40；According to law of connected vessels, the water level in deoxidation water tank 30 and level of ground water wave
Water level in dynamic column 40 can be in same level, therefore, adjust the height of deoxidation water tank 30, may finally realize deoxidation water tank
The height of water and the lowest water level height in groundwater level fluctuation column 40 are same high in 30；Similarly, the height of deoxidation water tank 30 is promoted
Degree, it is final to realize the height of water and the maximum stage in groundwater level fluctuation column 40 in deoxidation water tank 30 according to law of connected vessels
Height is the same as high；And so on, you can realize the reciprocal variation of the height of the deoxygenated water in groundwater level fluctuation 40.Art technology
Personnel need to meet to accommodate and realize in groundwater level fluctuation 40 it is understood that volume for deoxidation water tank 30
The volume of water between maximum stage height and lowest water level height；In addition to this, and can rich certain water, on ground
Lower water-level fluctuation 40 reach maximum fluctuation it is high when, there is also certain liquid levels in deoxidation water tank 30.
In certain specific embodiments of the invention, groundwater level fluctuation column 40 and deoxidation water tank 30 can be cylinder
Shape；The diameter of the two cross section is identical；Since the fine sand of 60-100 mesh being added in groundwater level fluctuation column 40；In view of fine sand
The height of the voidage of accumulation, deoxidation water tank 30 can be set as 40 preset maximum stage height of groundwater level fluctuation column and institute
State more than half of the difference of lowest water level height.For example, maximum stage height is 80cm, lowest water level height 40cm；Then deoxidation
The height of water tank 30 is at least 20cm.
It should be noted that the maximum stage height of deoxygenated water and the lowest water level height of deoxygenated water are each meant by artificial
Control, from the height of water level inputted into ground water-level fluctuation column in deoxidation water tank.It is understood that when from deoxidation water tank to
After the deoxygenated water inputted in ground water-level fluctuation column reaches maximum stage height or lowest water level height, due to Simulated Soil medium
Capillarity on maximum stage height and lowest water level height, also has deoxygenated water after a period of time.So
Water sampling mouth 45 is also provided in first altitude range；In certain specific embodiments of the invention, sealed valve may be used
Screw-type Mininert valves；This valve tightness is good, durable；Such as VICI (Wei Xi) company may be usedValve 631201。
In certain specific embodiments of the invention, it can be arranged in second altitude range there are three water sampling
Mouthful, it is a slow, progressive process since water level rises or falls, though three sample taps are respectively positioned on for simulated groundwater position
Second altitude range of wave zone, but difference, three water sampling mouths of setting can illustrate wave to same time water sample characteristic each other
Dynamic band gradually continues variation.More preferably, three water sampling mouths are located at the maximum stage height, lowest water level height
And the intermediate altitude of the two.Described intermediate altitude refers to maximum stage height and the height at the average value of lowest water level height
Degree；Such as maximum stage height is 80cm, lowest water level height is 40cm, then intermediate altitude is 60cm.
The present invention is respectively provided at least in three altitude ranges there are one oxygen level sensor 46, is simulated for monitoring
Saturated zone, belt of phreatic fluctuation and aeration zone oxygen content；In specific implementation process, oxygen level sensor can be fixed on
On the inner wall of shell 41；Oxygen level sensor can be specifically intrusive probe lambda sensor, the probe lambda sensor by with
Corresponding oxygen analyser host is connected, and realizes the measurement of oxygen content.It should be noted that oxygen level sensor and coupled survey
Oxygen instrument host is the prior art, and the present invention is herein without limiting.For example, the oxygen analyser of PreSens companies may be used, the
PSt3 types sensor, PSt3 is respectively adopted in the oxygen level sensor of one altitude range, the second altitude range and third height range
Type sensor and PSt6 type sensors；Their channels different from ten channel fiber oxygen analyser hosts (OXY-10 SMA trace)
It is connected.
In specific implementation process, oxygen distribution sensor can be fixed on the inner wall of shell 41；Oxygen of the present invention
Distribution sensor can be Optochemical sensor film, such as the RPSU4 type Optochemical sensor films of PreSens companies；And it utilizes
VisiSens imaging detectors (sensor film host) irradiate RPSU4 sensor films, the dynamic change of two-dimensional imaging oxygen distribution.
The present invention is respectively provided at least the object there are one Simulated Soil medium in the first altitude range, the second altitude range
Manage attribute monitoring element 48；For monitoring simulated aeration zone (the first altitude range) and belt of phreatic fluctuation (in real time
Two altitude ranges) in the physical attribute, such as water content, conductivity and temperature of Simulated Soil medium etc..Specific implementation process
In, physical attribute monitoring element 48 equally can be in advance fixed on the inner wall of shell 41；Physical attribute monitoring element 48 can be with
Using the sensor that can at least measure moisture；More specifically, U.S. Acclima may be used in physical attribute monitoring element 48
The TDR315L sensors of company；Its main feature is that can water content, temperature and conductance simultaneously after being connected with CR300 data collectors
The indexs such as rate.
In order to accelerate the reciprocal flow rate of the water in groundwater level fluctuation column 40 and the water in deoxidation water tank 30,
In certain specific embodiments of the invention, water pump 50 is provided on the pipeline.More specifically, water pump 50 may be used
Peristaltic pump.In specific implementation process, water pump 50 can be placed on the lower partition layer 13 of device pedestal 10.
The simulator of above-mentioned provided belt of phreatic fluctuation through the invention, can simulate groundwater level fluctuation
The water level height of band changes；But in practical study, it is also necessary to further research, the variation of simulated groundwater position wave zone,
And study the caused Tiny ecosystem variation of its variation and the dirty biodegradation character of pollution；Therefore, some in the present invention are specific real
It applies in mode, the simulator of belt of phreatic fluctuation further includes：Pollutant injection part, the pollutant injection part are used for
Pollutant is injected in the Simulated Soil medium.More specifically, syringe pump may be used in pollutant injection part, such as micro-
Syringe pump is measured to realize；Syringe pump is the prior art, and the present invention is herein without limiting；Those skilled in the art can be according to reality
Border needs to select suitable syringe pump.Certainly, those skilled in the art are noted pollutant by other pollutant injection parts
It is also feasible for entering in the Simulated Soil medium.Petroleum hydrocarbon contaminant is complicated and not degradable.Into the petroleum hydrocarbon of underground water
Pollutant is based on benzene homologues (BTEX, i.e. benzene, toluene, ethylbenzene and dimethylbenzene)；Therefore, in the specific implementation process of the present invention
In, the first height model of the simulation aeration zone of the underwater position fluctuation column in ground can be injected into using benzene homologues as the representative of pollutant
It encloses；More specifically, the quality of the benzene homologues injected is 2% (wt) of Simulated Soil mass of medium.It, can be with when practical application
The permeable watertight film for being covered in the case top opening is detached with the opening first, then uses pollutant injection part from ground
The opening of lower water-level fluctuation column top injects pollutant, after, then permeable watertight film is covered in the case top and is opened
On mouth.
In order to measure contaminant transportation, redistribution and biological community structure, functional gene Plantago fengdouensis situation, it is
Belt of phreatic fluctuation pollutes Tiny ecosystem variation and provides scientific basis with biological prosthetic Mechanism Study；Some in the present invention are specific
Can also include Simulated Soil medium acquisition component, the Simulated Soil medium acquisition component is for acquiring institute in embodiment
State Simulated Soil medium.In specific implementation process, the manual drilling rod of direct-push may be used in Simulated Soil medium acquisition component；More
For specifically, the product of AMS companies of the U.S., model HT03-4 may be used in the manual drilling rod of direct-push；The manual drilling rod of direct-push
Drill bit is small, sharp, among piercing fine sand, and it is small to the disturbance of system in entire groundwater level fluctuation column.When practical application,
The permeable watertight film for being covered in the case top opening is detached with the opening, then by the manual drilling rod of direct-push by underground
The opening of water-level fluctuation column top enters, taken at regular intervals Simulated Soil medium samples, is used for pollutant distribution and microbiologic population
Structure, functional gene enrichment analysis.After sampling, then permeable watertight film is covered in case top opening.
In certain specific embodiments of the invention, the simulator of belt of phreatic fluctuation provided by the invention, packet
It includes：Device pedestal, water tank lifting gear, deoxidation water tank and groundwater level fluctuation column；
Device pedestal may include from top to bottom table top layer, intermediate bulkhead layer and lower partition layer；The elevating lever can be with
It is fixed on the table top layer；The groundwater level fluctuation column can be fixed on the intermediate bulkhead layer.
The water tank lifting gear includes lifting disk, elevating lever and lift control system, the lift control system and institute
State elevating lever electrical connection, rising and decline for controlling the lifting disk.The lifting disk is located at the top of the elevating lever；It is described
Elevating lever is fixed on described device pedestal；
The deoxidation water tank is placed on the lifting disk；The deoxidation water tank is equipped with water inlet, water outlet and exhaust outlet；Institute
State the water inlet of deoxidation water tank, exhaust outlet is located at the top of the deoxidation water tank；The water outlet of the deoxidation water tank is located at described
The bottom of deoxidation water tank；
The groundwater level fluctuation column includes：Shell, enclosure interior 60-100 mesh fine sand and be covered in the shell
Open-topped permeable watertight film；The housing sidewall is communicated with liquid level gauge pipe；The groundwater level fluctuation column is fixed on institute
It states on device pedestal；Shell is made of organic glass.
The groundwater level fluctuation column and the deoxidation water tank are cylinder；Cross section is the circle of a diameter of 24cm；
The height of groundwater level fluctuation column is 120cm；The height of deoxidation water tank is 20cm.
Preset maximum stage height is 80cm, and lowest water level height is 40cm.The maximum stage height and it is described most
The groundwater level fluctuation column is from top to bottom divided into the first altitude range, the second altitude range and third height by small height of water level
Spend range；On the housing wall, there are three water sampling mouths for setting in second altitude range；Other two height divide model
It is respectively set in enclosing there are one water sampling mouth, each water sampling mouth is provided with screw-type Mininert valves；In the shell
It is interior, it is respectively set within the scope of three height point there are one oxygen level sensor, the first altitude range, the second altitude range and the
PSt3 types sensor, PSt3 types sensor and PSt6 type trace oxygens sensing is respectively adopted in the oxygen level sensor of three altitude ranges
Device；In the shell, it is provided with Optochemical sensor film in second altitude range, the oxygen for determining different height
Gas content is distributed；In the shell, be respectively set in the first altitude range, the second altitude range there are one TDR315L pass
Sensor；
The shell is preferably provided with the mouth of a river, the mouth of a river and the deoxidation within the scope of third height in housing bottom
The water outlet of water tank is connected by pipeline；It is provided with peristaltic pump on the pipeline.
Certainly pollutant injection part and Simulated Soil medium acquisition component are also configured with.
With above-mentioned specific embodiment, the application method of the simulator of the belt of phreatic fluctuation of the present invention is sketched：
First by deoxygenated water by deoxidation water tank be sent into groundwater level fluctuation column, make underground water fluctuation column in water level be maintained at away from
At height from column bottom 40cm, stop 10 days.2% BTEX petroleum-like hydrocarbon pollutants are injected into using pollutant injection part
In groundwater level fluctuation column at the position of distance post bottom 80cm, stop 30 days.Using water tank lifting gear, deoxidation water tank is set
Height, the water in deoxidation water tank sends groundwater level fluctuation column to, and lead to by bottom water outlet through peristaltic pump with certain flow rate
The water level height in law of connected vessels adjustment groundwater level fluctuation column is crossed, makes the water level in groundwater level fluctuation column by distance post bottom
40cm rises at the 80cm of distance post bottom, stops 30 days.Peristaltic pump is adjusted to reversion mould by the height for resetting deoxidation water tank
Formula, then underground water is entered into deoxidation water tank by the extraction of groundwater level fluctuation column, make the water level in groundwater level fluctuation column by 80cm
Decline at 40cm, stops 30 days.In the process, PSt3 types sensor, PSt3 types sensor, PSt6 type trace oxygens are utilized respectively
Sensor and RPSU4 Optochemical sensors film and TDR315L sensor onlines oxygen, water content, conductivity and temperature become
Change, and by water sampling mouth and Simulated Soil medium acquisition component, acquire a underground water and fine sand sample weekly, measures oil
Hydrocarbon pollutant migration, redistribution and biological community structure, functional gene Plantago fengdouensis situation are belt of phreatic fluctuation oil
Hydrocarbon pollutes Tiny ecosystem variation and provides scientific basis with biological prosthetic Mechanism Study.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of simulator of belt of phreatic fluctuation, which is characterized in that including：Device pedestal, water tank lifting gear, deoxidation
Water tank and groundwater level fluctuation column；
The water tank lifting gear includes lifting disk and elevating lever, and the lifting disk is located at the top of the elevating lever；The lifting
Bar is fixed on described device pedestal；
The deoxidation water tank is placed on the lifting disk；The deoxidation water tank is equipped with water inlet, water outlet and exhaust outlet；
The groundwater level fluctuation column includes：Shell, enclosure interior Simulated Soil medium and be covered in the case top and open
The permeable watertight film of mouth；The housing sidewall is communicated with liquid level gauge pipe；The groundwater level fluctuation column is fixed on described device
On pedestal；
The groundwater level fluctuation column is preset with maximum stage height and lowest water level height；The maximum stage height and
The lowest water level height by the groundwater level fluctuation column be from top to bottom divided into the first altitude range, the second altitude range and
Third height range；On the housing wall, it is respectively provided at least within the scope of three height point there are one water sampling mouth, it is each
A water sampling mouth is provided with sealed valve；In the shell, it is respectively provided at least within the scope of three height point there are one oxygen
Content level sensor；In the shell, it is provided with oxygen distribution sensor in second altitude range, for determining that oxygen contains
Amount distribution；In the shell, be respectively provided at least in the first altitude range, the second altitude range there are one Simulated Soil be situated between
The physical attribute monitoring element of matter；The physical attribute of the Simulated Soil medium includes water content, it is preferable that the Simulated Soil
The physical attribute of medium further includes conductivity and temperature；
The shell is preferably provided with the mouth of a river, the mouth of a river and the deoxidation water tank within the scope of third height in housing bottom
Water outlet connected by pipeline；Preferably, it is provided with water pump on the pipeline.
2. simulator as described in claim 1, which is characterized in that described device pedestal from top to bottom include table top layer, in
Spacing board layer and lower partition layer；The elevating lever is fixed on the table top layer；The groundwater level fluctuation column is fixed on
The intermediate bulkhead layer.
3. simulator as described in claim 1, which is characterized in that the water tank lifting gear further includes：Elevating control system
System, the lift control system are electrically connected with the elevating lever, rising and decline for controlling the lifting disk.
4. simulator as described in claim 1, which is characterized in that water inlet, the exhaust outlet of the deoxidation water tank are located at institute
State the top of deoxidation water tank；The water outlet of the deoxidation water tank is located at the bottom of the deoxidation water tank.
5. simulator as described in claim 1, which is characterized in that the shell of the groundwater level fluctuation column is by water white transparency
Material is made；It is preferred that being made of organic glass.
6. simulator as described in claim 1, which is characterized in that the Simulated Soil medium is the fine sand of 60-100 mesh.
7. simulator as described in claim 1, which is characterized in that setting takes there are three water in second altitude range
Sample mouth；Preferably, three water sampling mouths are located at the maximum stage height, lowest water level height and the two
Intermediate altitude.
8. simulator as described in claim 1, which is characterized in that the sealed valve is screw-type Mininert valves.
9. the simulator as described in any one of claim 1-8, which is characterized in that further include：Pollutant injection part, institute
Pollutant injection part is stated for injecting pollutant in the Simulated Soil medium.
10. the simulator as described in any one of claim 1-8, which is characterized in that further include：Simulated Soil medium acquires
Component, the Simulated Soil medium acquisition component is for acquiring the Simulated Soil medium.
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| CN110068662A (en) * | 2019-04-24 | 2019-07-30 | 同济大学 | The device of simulated groundwater oxygen content gradient distribution |
| CN110174337A (en) * | 2019-05-21 | 2019-08-27 | 河海大学 | The device and method of dynamic Soil Water Retention Curves is measured in a kind of laboratory |
| CN110231440A (en) * | 2019-06-14 | 2019-09-13 | 广东海洋大学 | A kind of nonirrigated farmland of simulated seawater supply, paddy field experimental rig |
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| CN110174337B (en) * | 2019-05-21 | 2021-09-17 | 河海大学 | Device and method for measuring dynamic soil water-holding curve in laboratory |
| CN110231440A (en) * | 2019-06-14 | 2019-09-13 | 广东海洋大学 | A kind of nonirrigated farmland of simulated seawater supply, paddy field experimental rig |
| CN115032369A (en) * | 2022-06-08 | 2022-09-09 | 成都理工大学 | Method for researching plant growth state and simulation device |
| CN115032369B (en) * | 2022-06-08 | 2023-08-08 | 成都理工大学 | Method for researching plant growth state and simulation device |
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