CN107643376B - A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment - Google Patents
A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment Download PDFInfo
- Publication number
- CN107643376B CN107643376B CN201710740758.2A CN201710740758A CN107643376B CN 107643376 B CN107643376 B CN 107643376B CN 201710740758 A CN201710740758 A CN 201710740758A CN 107643376 B CN107643376 B CN 107643376B
- Authority
- CN
- China
- Prior art keywords
- simulator
- water
- simulation
- underground water
- arsenic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment, including sequentially connected anaerobic operation case, simulator, monitoring pool, tee tube and waste liquid pool, simulation high-arsenic underground water is held in the anaerobic operation case, the simulation high-arsenic underground water is prepared using anaerobic water, the inside filling simulation soil horizon of the simulator, when the variation in altitude of the tee tube, under the action of pressure difference, the water level of the simulator changes, to realize the groundwater environment of simulation different condition, the simulation high-arsenic underground water flows into simulator, simulation high-arsenic underground water seepage flow in simulator under gravity, the simulation high-arsenic underground water for completing seepage flow is discharged from simulator, then monitoring pool is successively flowed into, tee tube and waste liquid pool, several water quality are placed in the monitoring pool Monitoring probe, the water quality monitoring probe is to realize continuous monitoring water sample, water sample of the waste liquid pool to collect outflow.
Description
Technical field
The present invention relates to groundwater simulation technical fields more particularly to a kind of simulation high-arsenic underground water to irrigate to underground water ring
The experimental provision that border influences.
Background technique
Arsenic is a kind of toxic metalloid element.Chronic intake will cause endemic arsenic poisoning containing As groundwater, cause skin,
Bladder, kidney, vascular diseases even canceration etc..High-arsenic underground water is distributed in more than 70, whole world country, influences more than 1.5 hundred million populations.
Only on the Chinese side, about 2,000 ten thousand populations are just by the threat of high-arsenic underground water.In order to more efficiently change to high-arsenic underground water
Good and reparation identifies arsenic migration in high-arsenic underground water system, the Dominated Factors of enrichment process are key points.
Temperature, pH, redox environment, the active material coexisted etc. all influence arsenic from underwater form and distribution.High arsenic
Underground water is mainly distributed on rural area, and rural area irrigation activity generally occurs, and this irrigation activity can change underground water
Surrounding material and environment need on-the-ground test to more preferably study influence of the high-arsenic underground water irrigation activity to groundwater environment
It combines with simulated experiment, its mechanism of action is studied from different scale.
Summary of the invention
In view of this, a kind of the present invention provides structures simple, the simulation simulation high-arsenic underground water that effect is good, feasibility is high
Irrigate the experimental provision influenced on groundwater environment.
The present invention provides a kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment, including successively connects
Anaerobic operation case, simulator, monitoring pool, tee tube and the waste liquid pool connect, the tee tube can move up and down, the anaerobism behaviour
Make to connect between case and simulator by first pipe, be connected between the monitoring pool and simulator by second pipe,
The monitoring pool is connected with the first nozzle of tee tube by third pipeline, and the second nozzle and waste liquid pool of the tee tube pass through
The connection of 4th pipeline, the third nozzle of the tee tube are communicated with the atmosphere, and the high arsenic underground of simulation is held in the anaerobic operation case
Water, the simulation high-arsenic underground water are prepared to simulate the underground water containing arsenic, the simulation high-arsenic underground water using anaerobic water,
The inside filling simulation soil horizon of the simulator, the simulation soil horizon to Synthetic soil solution, the tee tube
When variation in altitude, under the action of pressure difference, the water level of the simulator changes, to realize simulation different condition
Groundwater environment, the simulation high-arsenic underground water are flowed into simulator by first pipe, under gravity the mould
Quasi- high-arsenic underground water seepage flow in simulator, the simulation high-arsenic underground water for completing seepage flow are discharged out of simulator, then according to
Secondary inflow monitoring pool, tee tube and waste liquid pool, the monitoring pool is interior to place several water quality monitorings probes, the water quality monitoring probe
To realize continuous monitoring water sample, water sample of the waste liquid pool to collect outflow.
Further, the simulator includes simulator main body, the simulation being arranged in above simulator main body dress
The simulator lower end setting upper end and being arranged in below simulator main body, the simulator upper end are connected by first flange disk
It connects in simulator main body, passes through the first rubber seal rings for seal, institute between the simulator upper end and first flange disk
It states simulator lower end to be connected in simulator main body by second flange disk, the simulator lower end and second flange disk
Between pass through the second seal with elastometic washer.
Further, the middle position of the simulator upper end opens up the first water inlet, passes through first water inlet
One end of first pipe is connect with simulator upper end, two-phase valve is set in the first pipe, opens the two-phase valve
Men Shi, the simulation high-arsenic underground water flow into simulator main body, and the middle position of the simulator lower end opens up first
One end of second pipe is connect with simulator lower end by first water outlet, is set on the second pipe by water outlet
Set three-phase valve, wherein one end of the three-phase valve is communicated with the atmosphere, one end of the three-phase valve being communicated with the atmosphere to
The acquisition of water sample.
Further, the first aperture is equipped with close to the side of the simulator main body of the simulator upper end, described the
Breather valve, the gas exchanges between inside and atmosphere of the breather valve to realize simulator main body are installed in one aperture.
Further, the side of the simulator main body is equipped with several apertures, these apertures flow along longitudinal direction to realize
The acquisition of water sample in dynamic approach.
Further, the first pipe, second pipe, third pipeline and the 4th pipeline are rubber tubing, and described three
Siphunculus is glass three-way pipe, and the simulator main body, simulator upper end and simulator lower end are by clear PVC material system
At the simulation soil horizon selects any, addition arsenic and the ferron in the anaerobic water of quartz sand or clay.
Further, water level of the height of the tee tube no more than the inside of simulator main body, the simulator
Plastic wire liner is installed in the bottom of main body, and the aperture of the plastic wire liner is less than the partial size of simulation soil horizon.
Further, pump is connected in the first pipe, and simulation high-arsenic underground water is delivered to by simulation dress by the pump
It sets, filter is installed, the filter is to remove the impurity in simulation high-arsenic underground water, the simulation in the first pipe
The inside of device is equipped with water distributor, and the water distributor will be will simulate the uniform spreading of high-arsenic underground water.
Further, the monitoring pool is equipped with the second water inlet and the second water outlet, and the position of second water inlet is low
In the position of the second water outlet, second water inlet is connect with second pipe, and second water outlet is connect with third pipeline.
Further, the lower section of the tee tube is arranged lifting platform, the lifting platform to fixed tee tube position and
Change the height of tee tube.
Technical solution provided by the invention have the benefit that experimental provision structure provided by the invention it is simple, can
Row is high, simulation effect is good, and the experimental study influenced on groundwater environment has very big help；Reality provided by the invention
Experiment device efficiently simulates the reduction anaerobic environment of high-arsenic underground water using oxygen free operation case, has and widely promotes and applies valence
Value；Experimental provision provided by the invention controls the water level of simulator using tee tube, easily operated, effectively reduces experiment
Disturbance variable；Water quality monitoring probe is directly laid in monitoring pool by experimental provision provided by the invention, effectively prevents taking out
Error caused by test, continuous monitoring effect are good.
Detailed description of the invention
Fig. 1 is the structural representation that a kind of simulation high-arsenic underground water of the present invention irrigates the experimental provision influenced on groundwater environment
Figure.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Referring to FIG. 1, irrigating the embodiment provides a kind of simulation high-arsenic underground water influences groundwater environment
Experimental provision comprising sequentially connected anaerobic operation case 1, simulator 2, monitoring pool 3, tee tube 4 and waste liquid pool 5 are detested
It is connected between oxygen control box 1 and simulator 2 by first pipe 11, passes through second pipe between monitoring pool 3 and simulator 2
First nozzle 41 of 12 connections, monitoring pool 3 and tee tube 4 is connected by third pipeline 13, the second nozzle 42 of tee tube 4 and is given up
Liquid pool 5 is connected by the 4th pipeline 14, and the third nozzle 43 of tee tube 4 is communicated with the atmosphere.
It holds simulation high-arsenic underground water in anaerobic operation case 1, simulates high-arsenic underground water to simulate the underground water containing arsenic,
It simulates high-arsenic underground water to prepare using anaerobic water, adds the arsenic and ferron of different quality in anaerobic water according to experiment demand,
Simulation high-arsenic underground water is delivered to simulator 2, peace in first pipe 1 by pump 111 by connection pump 111 in first pipe 11
Fixed filter 112, filter 112 is to remove the impurity in simulation high-arsenic underground water；In one embodiment, pump 111 is using wriggling
Simulation high-arsenic underground water is delivered to simulator 2 with can be realized constant current speed by pump, peristaltic pump, and filter 112 uses syringe-type
Filter.
The inside filling simulation soil horizon of simulator 2, simulation soil horizon simulate soil horizon root to Synthetic soil solution
Demand selection quartz sand or clay are factually tested, selects quartz sand to carry out simulated experiment in one embodiment of the invention.
Simulator 2 includes simulator main body 21, the simulator upper end 22 that 21 top of simulator main body is arranged in
With the simulator lower end 23 being arranged in below simulator main body 21, simulator upper end 22 is connected by first flange disk 6
In simulator main body 21, between simulator upper end 22 and first flange disk 6 (in figure not by the first rubber seal
Show) sealing, simulator lower end 23 is connected in simulator main body 21 by second flange disk 7, simulator lower end 23 with
By the second seal with elastometic washer between second flange disk 7, the inside of simulator 2 is equipped with water distributor 24, and water distributor 24 is to incite somebody to action
The uniform spreading of high-arsenic underground water is simulated, is equipped with the first aperture close to the side of the simulator main body 21 of simulator upper end 22
25, breather valve 26, the gas between inside and atmosphere of the breather valve 26 to realize simulator main body 21 are installed in the first aperture 25
Body exchange.
The simulator 2 being communicated with the atmosphere respectively and tee tube 4, which are constituted, U-shaped is connected to pool structure, the variation in altitude of tee tube 4
When, under the action of pressure difference, the water level of simulator 2 changes, to realize the groundwater environment of simulation different condition.
When carrying out simulated experiment using the experimental provision, simulation high-arsenic underground water flows into simulator by first pipe 11
In 2, simulate high-arsenic underground water seepage flow in simulator 2 under gravity, complete the simulation high-arsenic underground water of seepage flow from
Discharge in simulator 2, then successively flows into monitoring pool 3, tee tube 4 and waste liquid pool 5, water of the waste liquid pool 5 to collect outflow
Sample.
The middle position of simulator upper end 22 opens up the first water inlet 221, by the first water inlet 221 by first pipe
11 one end is connect with simulator upper end 22, and two-phase valve 113 is arranged in first pipe 11, when opening two-phase valve 113, mould
Quasi- high-arsenic underground water flows into simulator main body 21, and the middle position of simulator lower end 23 opens up the first water outlet 231, leads to
It crosses the first water outlet 231 and connect one end of second pipe 12 with simulator lower end 23, three-phase valve is set on second pipe 12
Door 121, wherein one end of three-phase valve 121 is communicated with the atmosphere, and one end of the three-phase valve 121 being communicated with the atmosphere is to water sample
Acquisition.
The bottom of simulator main body 21 is equipped with plastic wire liner, and the aperture of plastic wire liner is less than simulation soil horizon
Partial size, the aperture of plastic wire liner is 0.088mm in an embodiment.
Monitoring pool 3 is equipped with the second water inlet 32 and the second water outlet 33, and the position of the second water inlet 32 is lower than the second water outlet
The position of mouth 33, the second water inlet 32 are connect with second pipe 12, and the second water outlet 33 is connect with third pipeline 13, monitoring pool 3
Interior to place several water quality monitoring probes 31, these water quality monitorings probe 31 is to realize continuous monitoring water sample.
Tee tube 4 can move up or down, and lifting platform 8 be arranged below, lifting platform 8 is to fixed tee tube 4
Position and the height for changing tee tube 4, water sample is flow backwards in order to prevent, and the height of tee tube 4 is not more than simulator main body
The water level of 21 inside.
The side of simulator main body 21 is equipped with several apertures 27, these apertures 27 are to realize on flow path along longitudinal direction
Water sample acquisition.
First pipe 11, second pipe 12, third pipeline 13 and the 4th pipeline 14 are rubber tubing, and tee tube 4 is glass
Glass tee tube.
Simulator main body 21, simulator upper end 22 and simulator lower end 23 are made of clear PVC material, according to
Experiment demand selects the size of suitable simulator main body 21, in an embodiment, the internal diameter of simulator main body 21 be 8cm,
Length is 1.5m, wall thickness 5mm.
Interface, first pipe 11 and the interface of simulator upper end 22 of first pipe 11 and anaerobic operation case 1, the
Two pipelines 12 and the interface of simulator lower end 23, the interface of second pipe 12 and the second water inlet 32, third pipeline 13
With the interface of the secondth water outlet 33, the interface of third pipeline 13 and the first nozzle 41, the 4th pipeline 14 and the second nozzle
42 interface is all made of silicon rubber coating sealing.
Experimental provision structure provided by the invention is simple, feasibility is high, simulation effect is good, the reality influenced on groundwater environment
Testing research has very big help；Experimental provision provided by the invention efficiently simulates high arsenic using oxygen free operation case 1
The reduction anaerobic environment of underground water has widely application value；Experimental provision provided by the invention is controlled using tee tube 4
The water level of simulator 2 processed, it is easily operated, effectively reduce the disturbance variable of experiment；Experimental provision provided by the invention is by water
Matter monitoring probe 31 is directly laid in monitoring pool 3, effectively prevents error caused by taking out test, and continuous monitoring effect is good.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment, which is characterized in that including successively connecting
Anaerobic operation case, simulator, monitoring pool, tee tube and the waste liquid pool connect, the tee tube can move up and down, the anaerobism behaviour
Make to connect between case and simulator by first pipe, be connected between the monitoring pool and simulator by second pipe,
The monitoring pool is connected with the first nozzle of tee tube by third pipeline, and the second nozzle and waste liquid pool of the tee tube pass through
The connection of 4th pipeline, the third nozzle of the tee tube are communicated with the atmosphere, and the high arsenic underground of simulation is held in the anaerobic operation case
Water, the simulation high-arsenic underground water are prepared to simulate the underground water containing arsenic, the simulation high-arsenic underground water using anaerobic water,
The inside filling simulation soil horizon of the simulator, the simulation soil horizon connect with atmosphere respectively to Synthetic soil solution
Logical simulator and tee tube constitute it is U-shaped be connected to pool structure, when the variation in altitude of the tee tube, in the effect of pressure difference
Under, the water level of the simulator changes, thus realize the groundwater environment of simulation different condition, the high arsenic of simulation
It is lauched and is flowed into simulator by first pipe, the simulation high-arsenic underground water seeps in simulator under gravity
Stream, the simulation high-arsenic underground water for completing seepage flow are discharged out of simulator, then successively flow into monitoring pool, tee tube and waste liquid
Pond, the monitoring pool is interior to place several water quality monitorings probes, and the water quality monitoring probe continuously monitors water sample to realize, described
Water sample of the waste liquid pool to collect outflow.
2. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as described in claim 1, feature exists
In the simulator includes that simulator main body, the simulator upper end being arranged in above simulator main body and setting exist
Simulator lower end below simulator main body, the simulator upper end are connected to simulator master by first flange disk
On body, pass through the first rubber seal rings for seal, the simulator lower end between the simulator upper end and first flange disk
It is connected in simulator main body by second flange disk, passes through the second rubber between the simulator lower end and second flange disk
Rubber sealing.
3. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as claimed in claim 2, feature exists
In the middle position of the simulator upper end opens up the first water inlet, by first water inlet by the one of first pipe
End is connect with simulator upper end, and two-phase valve is arranged in the first pipe, and when opening the two-phase valve, the simulation is high
As groundwater flows into simulator main body, and the middle position of the simulator lower end opens up the first water outlet, by described
One end of second pipe is connect by the first water outlet with simulator lower end, and three-phase valve is arranged on the second pipe, described
Wherein one end of three-phase valve is communicated with the atmosphere, acquisition of the one end of the three-phase valve being communicated with the atmosphere to water sample.
4. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as claimed in claim 2, feature exists
In being equipped with the first aperture close to the side of the simulator main body of the simulator upper end, installation is logical in first aperture
Air valve, the gas exchanges between inside and atmosphere of the breather valve to realize simulator main body.
5. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as claimed in claim 2, feature exists
In the side of the simulator main body is equipped with several apertures, these apertures are to realize the water sample on flow path along longitudinal direction
Acquisition.
6. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as claimed in claim 2, feature exists
In the first pipe, second pipe, third pipeline and the 4th pipeline are rubber tubing, and the tee tube is glass three-way
Pipe, the simulator main body, simulator upper end and simulator lower end are made of clear PVC material, the simulation soil
Any, addition arsenic and the ferron in the anaerobic water of earth layer choosing quartz sand or clay.
7. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as claimed in claim 2, feature exists
In the height of the tee tube is not more than the water level of the inside of simulator main body, the bottom installation of the simulator main body
Plastic wire liner, the aperture of the plastic wire liner are less than the partial size of simulation soil horizon.
8. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as described in claim 1, feature exists
In simulation high-arsenic underground water is delivered to simulator, the first pipe by the pump by connection pump in the first pipe
Interior installation filter, to remove the impurity in simulation high-arsenic underground water, the inside of the simulator is equipped with the filter
Water distributor, the water distributor will be will simulate the uniform spreading of high-arsenic underground water.
9. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as described in claim 1, feature exists
In the monitoring pool is equipped with the second water inlet and the second water outlet, and the position of second water inlet is lower than the second water outlet
Position, second water inlet are connect with second pipe, and second water outlet is connect with third pipeline.
10. simulation high-arsenic underground water irrigates the experimental provision influenced on groundwater environment as described in claim 1, feature exists
In lifting platform is arranged in the lower section of the tee tube, and the lifting platform is to the position of fixed tee tube and the height of change tee tube
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740758.2A CN107643376B (en) | 2017-08-25 | 2017-08-25 | A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740758.2A CN107643376B (en) | 2017-08-25 | 2017-08-25 | A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107643376A CN107643376A (en) | 2018-01-30 |
| CN107643376B true CN107643376B (en) | 2019-09-17 |
Family
ID=61110613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710740758.2A Expired - Fee Related CN107643376B (en) | 2017-08-25 | 2017-08-25 | A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107643376B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678255A (en) * | 2018-12-29 | 2019-04-26 | 中国地质大学（武汉） | A kind of culture experiment device of the simulation redox fluctuation adjusted based on nitrogen oxygen |
| CN110274852B (en) * | 2019-07-15 | 2021-08-17 | 长安大学 | Underground water dynamic simulation experiment system and method |
| CN112114114A (en) * | 2020-09-24 | 2020-12-22 | 白杨 | Experimental device for simulating influence of high-arsenic underground water irrigation on underground water environment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870445Y (en) * | 2005-12-12 | 2007-02-21 | 武汉大学 | Underground automatic water drainer with water-supply function for steam infiltration measuring pit |
| CN202562911U (en) * | 2012-04-01 | 2012-11-28 | 重庆三峡学院 | Soil leaching capacity experiment simulator |
| CN103630659B (en) * | 2012-11-30 | 2015-06-24 | 上海市环境科学研究院 | Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water |
| CN203891044U (en) * | 2014-04-23 | 2014-10-22 | 河海大学 | Model device for researching out-pit precipitation in presence of good water-insulating layer on outer side of foundation pit |
| CN105336257A (en) * | 2015-11-30 | 2016-02-17 | 中国科学院烟台海岸带研究所 | Simulation device for underground water level changes and flooding and using method of simulation device |
| CN205352897U (en) * | 2016-01-13 | 2016-06-29 | 中国地质大学（武汉） | Analogue means that groundwater pollutant moved under condition that flows more |
| CN205375953U (en) * | 2016-01-28 | 2016-07-06 | 成都理工大学 | Proluvial fan groundwater seepage flow analogue means |
| CN205991984U (en) * | 2016-08-18 | 2017-03-01 | 济南大学 | The double aqueous system supply source of karst and Environmental capacity analog |
-
2017
- 2017-08-25 CN CN201710740758.2A patent/CN107643376B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107643376A (en) | 2018-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107643376B (en) | A kind of experimental provision that the irrigation of simulation high-arsenic underground water influences groundwater environment | |
| CN108318386B (en) | Multifunctional simulation experiment device and method for migration and infiltration rules of river pollutants | |
| CN103994951B (en) | The analogue means of environmental contaminants Transport And Transformation in underground water different water cut layer | |
| CN101769845B (en) | Device for researching leaching migration of exogenous additional substance in soil in process of crop growth | |
| CN206835952U (en) | The New aquarium controlled using the water level adaptive equalization of ball float triggering | |
| CN109668809A (en) | Valley plain band accumulation of soluble substances and Migration Simulation experimental provision and method | |
| CN105004646A (en) | Indoor artificial rainfall-simulation testing system | |
| CN108732331A (en) | A kind of device tested with the soil water, vapour, heat, salt simultaneous transport for unsaturation | |
| CN107238563A (en) | It is a kind of to determine head many native ring soil permeability detection means and its measuring method | |
| CN103215911A (en) | Device and method for simulating closed water drainage and salt elimination transfusion field and salinity change | |
| CN104729845B (en) | Drip irrigation below the surface device anti-blocking performance test device | |
| CN206168621U (en) | Controllable raininess rainfall simulation device in field | |
| CN106781962A (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation test device | |
| CN205898443U (en) | Drip irrigation zone flow simulation monitoring testing arrangement | |
| CN208953419U (en) | Novel sand slot seepage flow test device | |
| CN105385588B (en) | Biological flora Migration Simulation experimental provision and method in coal | |
| CN206532507U (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation testing instrument | |
| CN206725404U (en) | A kind of multi-functional column simulation integrating device for continuous monitoring | |
| CN206269998U (en) | A kind of plant haulm flow field simulation experimental provision | |
| CN105194913B (en) | Filter column for water treatment pilot scale test | |
| CN208060477U (en) | The leaching system of indoor simulation coal gangue coal ash and fill paste | |
| CN105684837B (en) | Rice field pollutant output control system based on AWD irrigation techniques and method | |
| CN210154970U (en) | Dynamic water flow device for water-karst corrosion test | |
| CN104542189B (en) | A kind of high stability Negative pressure irrigation device and the method for Negative pressure irrigation thereof | |
| CN203117085U (en) | Test unit for simulating rain erosion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20200825 |