CN206538277U - Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall - Google Patents
Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall Download PDFInfo
- Publication number
- CN206538277U CN206538277U CN201720103913.5U CN201720103913U CN206538277U CN 206538277 U CN206538277 U CN 206538277U CN 201720103913 U CN201720103913 U CN 201720103913U CN 206538277 U CN206538277 U CN 206538277U
- Authority
- CN
- China
- Prior art keywords
- reaction wall
- barrier material
- permeable reaction
- simulation
- experimental apparatus
- 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
- Water Treatment By Sorption (AREA)
Abstract
The utility model simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall, belongs to underground sewage and administers field.Including the permeable reaction column being vertically arranged；Permeable reaction column includes housing and fills up the permeability absorption barrier reaction wall of housing cavity；Permeability absorption barrier reaction wall includes water filling section and infiltration section；Water filling section includes the auxiliary barrier material layer of laminating inner walls, the contaminated liquid filler port provided with insertion auxiliary barrier material layer vertically.The invention more accurately simulates the abundant mechanism adsorbed in permeable reaction wall between barrier material and Polluted Groundwater solid-liquid, it is more convenient for studying influence of the different seepage flow speeds to adsorbing barrier material removal effect, it is more beneficial for assessing the safe adsorbance of barrier material under dynamic condition, to be that the design of field permeable reaction wall and engineering construction (particularly seepage flow speed, radial width and longitudinal thickness, adsorb the key elements such as the consumption and replacing construction of barrier material) provide important evidence.
Description
Technical field
The utility model belongs to underground sewage and administers field, and particularly simulating Polluted Groundwater, to flow through permeability anti-
Answer the indoor experimental apparatus of wall.
Background technology
Water is Source of life, and underground water is the important component of water resource, the survival and development to the mankind and social economy
With far reaching significance.Underground water pollution reparation is the great hot subject of current international environment area research.
Permeability absorption barrier reaction wall is a kind of passive recovery technique in situ, is made up of permeable adsorbing medium, one
As be installed on the downstream of underground water pollution pinnule, it is generally perpendicular with subsurface flow, and it can also be as under impurely
The ground processing facility of water.When under underground water is acted in itself hydraulic gradient by adsorbing barrier reaction wall, pollutant is with inhaling
Attached barrier material occurs various reactions and is removed, so as to reach the purpose of groundwater remediation.The repairing method is cost-effective with its,
And can be received much concern in the pollutant during underground water is removed on the premise of being disturbed to rock mass and soil without large area.
The indoor experimental apparatus that permeability adsorbs barrier reaction wall is simulated, it is simple to operate, easy to use, it can be oozed for research
Permeability absorption barrier reaction wall repairs underground water technology and provides good means.Such as Application No. 201320583241.4 is special
Profit application, discloses a kind of permeable reaction wall of simulating and removes the laboratory experiment system that solute is polluted in underground water, including enter
The experiment post of water pipe and simulation permeable reactive barrier, experiment column device includes cylindrical shell and is arranged at from bottom to top in experiment post
Sand-gravel cushion, the permeable reaction post and gravel for preventing current scour of solute are polluted for removing in underground water
Stone protective layer；Application No. 201610464148.x patent application, discloses a kind of controllable permeable reaction wall, and it is wrapped
Include the PRB inhalant regions from top to bottom sequentially set, PRB reaction zones and positioned at PRB exhalant regions, fill active in PRB reaction zones
Dielectric material sewage is entered by PRB inhalant regions, is handled by the infiltration of PRB reaction zones, and treated sewage is arranged by PRB exhalant regions
Go out.
The deficiency of the type of feed generally existing of experiment column device is above：Because barrier sorbing material layer permeability is weaker
Partial contamination liquid can be not passed through the permeable reaction post of bottom directly along cylindrical shell post jamb seepage flow and under, as shown in Fig. 2 having
Partial contamination liquid can with the direction of arrow along the downward seepage flow of cylindrical shell inwall, so that polluting liquid directs out leakage, therefore,
The experimental result of the experiment post can not actual response barrier material adsorption effect.
Utility model content
Technical problem to be solved in the utility model is to provide simulation Polluted Groundwater and flows through permeable reaction wall
Indoor experimental apparatus, it is to avoid contaminated liquid flows through along inner walls and without permeability barrier material reaction wall.
The technical solution adopted in the utility model is：The interior that simulation Polluted Groundwater flows through permeable reaction wall is real
Experiment device, including the permeable reaction column being vertically arranged, permeable reaction column one end are water inlet end, and the other end is water side；Can
Permeable reactive post includes housing and is filled in the permeability absorption barrier reaction wall of housing cavity；The permeability absorption screen
Hindering reaction wall includes water filling section and the infiltration section below water filling section；The water filling section includes the auxiliary screen of laminating inner walls
Hinder material layer, the auxiliary barrier material layer is surrounded along the axially extending contaminated liquid filler port of housing around housing axis.
Further, the water filling section also includes quartz sand overcoat, and the quartz sand overcoat is layed in contaminated liquid and added
The inwall of orifice and bottom.
Further, the vertical range of the hole wall of the contaminated liquid filler port to inner walls is equal everywhere.
Further, the infiltration section includes N layers of quartz sand layer and N+1 layers of barrier material；The barrier material and
Quartz sand layer arranged for interval.
Further, the N is located between 1-4.
Further, the lower section for adsorbing barrier reaction wall in permeability is provided with filter layer.
Further, provided with the water inlet pipe connected with contaminated liquid filler port, peristaltic pump is provided with water inlet pipe.
Further, provided with the outlet pipe for being installed on water side, flowmeter and sample tap are provided with outlet pipe.
Further, the one end for being located at contaminated liquid filler port in water inlet pipe is provided with gondola water faucet shape shower nozzle.
The beneficial effects of the utility model are：The utility model, by the way that water filling section to be designed to include inner walls of fitting
Auxiliary barrier material layer, and make auxiliary barrier material layer around housing axis surround along housing it is axially extending contaminated liquid filling
Hole avoids contaminated liquid along inner walls seepage flow so that contaminated liquid uniformly penetrates into absorption barrier material reaction column from top to down, from
And absorption barrier material good action is ensure that, improve the accuracy of experiment.And contaminated liquid is uniformly penetrated into inhale from top to bottom
Attached barrier material, more meets the mode that Polluted Groundwater in practical engineering application penetrates into permeable reactive barrier.Interior is by compacted
Dynamic pump adjusts different water intake velocity, is beneficial to go to determine that Polluted Groundwater flows through permeable reactive barrier by lab simulation
Optimum flow rate, had not only ensured permeable reactive wall to the high clearance of pollutant but also had been easy to the timely discharge for the treatment of fluid.By from water outlet
The sample tap timing of pipe takes treatment fluid to monitor, while the flow of cmf record special time period, monitors barrier failure in real time
Time, and then calculate under certain seepage flow speed the adsorbance of barrier material in permeable reaction wall in certain period.The experiment knot
Fruit inhales for the design and engineering construction of field permeable reaction wall particularly seepage flow speed, radial width and longitudinal thickness
The key elements such as the consumption and replacing construction of attached barrier material provide important evidence.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is prior art contaminated liquid seepage flow schematic diagram.
In figure, housing 1, permeability absorption barrier reaction wall 2, water filling section 21, auxiliary barrier material layer 211, contaminated liquid
Filler port 212, quartz sand overcoat 213, infiltration section 22, quartz sand layer 221, barrier material 222, filter layer 3, water inlet pipe 4,
Peristaltic pump 5, outlet pipe 6, flowmeter 7, sample tap 8, gondola water faucet shape shower nozzle 9.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples as follows：
Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall, as shown in figure 1, including setting vertically
The permeable reaction column put, permeable reaction column one end is water inlet end, and the other end is water side；Permeable reaction column includes housing
1 adsorbs barrier reaction wall 2 with the permeability for being filled in the inner chamber of housing 1；The permeability absorption barrier reaction wall 2 includes note
Water section 21 and the infiltration section 22 positioned at the lower section of water filling section 21；The water filling section 21 includes the auxiliary barrier material of the laminating inwall of housing 1
The bed of material 211, the auxiliary barrier material layer 211 is surrounded along the axially extending contaminated liquid filler port of housing 1 around the axis of housing 1
212。
Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall, and seepage flow is evaluated by lab simulation
The saturation that speed is removed to absorption barrier material under the influence and a certain amount of absorption barrier material dynamic situation of pollutant efficiency is inhaled
The test and appraisal of attached amount, the design and engineering construction for adsorbing barrier reaction wall for field permeability provides important evidence.Existing
In simulated experiment, contaminated liquid is easiest to permeate downwards along the inwall of housing 1, so that contaminated liquid is direct without adsorption filtration
Discharge, influences experimental result.The utility model, contaminated liquid is added to contaminated liquid filler port 212, due to contaminated liquid filler port 212
Surrounded and formed around the axis of housing 1 by auxiliary barrier material layer 211, the general micron order of auxiliary barrier material layer 211 or nanometer
The sand that the adsorbing medium of level is matched somebody with somebody with a deciding grade and level is mixed, and the laminating inwall of housing 1 of auxiliary barrier material layer 211, therefore, injection is dirty
Flowing of the contaminated liquid of dye liquor filler port 212 along the radial direction of contaminated liquid filler port 212 is stopped by auxiliary barrier material layer 211, makes edge
The amount of the contaminated liquid of the Radial Flow of contaminated liquid filler port 212 is radially gradually reduced, and to arriving at the inwall of housing 1, is not almost had
There is contaminated liquid along the downward seepage flow of the inwall of housing 1, and stopped along the radial direction of contaminated liquid filler port 212 by auxiliary barrier material layer 211
Contaminated liquid flows downwardly through infiltration section 22 and filtered, i.e. auxiliary barrier material layer 211 disperses contaminated liquid, makes contaminated liquid from upper
And lower uniform penetrate into permeates section 22, make contaminated liquid and the infiltration good action of section 22, improve the accuracy of experiment.While contaminated liquid
It is uniform from top to bottom to penetrate into absorption barrier material, more meet the mode of Polluted Groundwater seepage flow in practical engineering application.
In order to avoid the material in auxiliary barrier material layer 211 flows into contaminated liquid filler port 212, while also functioning to preliminary point
Dissipate the effect of contaminated liquid, it is preferred that the water filling section 21 also includes quartz sand overcoat 213, and the quartz sand overcoat 213 is spread
Inwall and bottom located at contaminated liquid filler port 212.Quartz sand overcoat 213 plays protection auxiliary barrier material layer 211 first,
The material of auxiliary barrier material layer 211 is avoided to be flowed into the effect of contaminated liquid filler port 212, secondly, quartz sand overcoat 213 is also
Play a part of disperseing first the flow velocity of contaminated liquid, slow down contaminated liquid along the radial inflow auxiliary barrier material of contaminated liquid filler port 212
The speed of the bed of material 211, is conducive to stopping the inwall that contaminated liquid flow to housing 1.
In order that circumference of the auxiliary barrier material layer 211 to the effect of contaminated liquid along contaminated liquid filler port 212 is consistent,
It is further ensured that contaminated liquid uniformly penetrates into infiltration section 22, it is preferred that the hole wall of the contaminated liquid filler port 212 to the inwall of housing 1
Vertical range it is equal everywhere.
Infiltration section 22 is main to be play a part of to remove pollutant, and the flow velocity for permeating section 22 is too fast, and pollutant is difficult to fully be gone
Remove；Flow velocity is excessively slow, contaminated liquid can not downward seepage flow in time, make it easy to flow to the inwall of housing 1, through inwall seepage flow directly down.
To overcome above-mentioned phenomenon, it is preferred that the infiltration section 22 includes N layers of quartz sand layer 221 and N+1 layers of barrier material 222；It is described
Barrier material 222 and the arranged for interval of quartz sand layer 221.Barrier material 222 generally uses micron order or nano level suction
Attached medium is mixed with the sand matched somebody with somebody of deciding grade and level, contaminated liquid wash away and Action of Gravity Field under, it is tiny in barrier material 222
Adsorbing medium particle can migrate gradually downward, when hypomere accumulate fine particle it is more when will result in hardened phenomenon, pollute
Liquid can not be through infiltration section 22.And quartz sand layer 221 and the arranged for interval of barrier material 222, have the following advantages, even if barrier material
Tiny adsorbing medium particle migration in the bed of material 222 will not occur hardened into quartz sand layer 221, also；While quartz sand layer 221
Also act the effect of scattered contaminated liquid and regulation seepage flow speed.
Further, the N is located between 1-4.
In order to prevent permeability from adsorbing the tiny adsorbing medium particle in barrier reaction wall 2 to external migration, it is preferred that
The lower section of permeability absorption barrier reaction wall 2 is provided with filter layer 3.
Can the seepage flow speed of permeability absorption barrier reaction wall 2 directly determine that barrier material 222 is made with contaminated liquid
Time, the efficiency that permeability absorption barrier reaction wall 2 removes pollutant can be significantly affected.The same absorption barrier material of contrast
Expect the difference under different seepage flow speeds to same contaminant removal efficiency, and then be the absorption barrier reaction of field permeability
The design and engineering construction of wall seepage flow speed provide important evidence.It is preferred that, provided with the water inlet connected with contaminated liquid filler port 212
Pipe 4, is provided with peristaltic pump 5 on water inlet pipe 4.
The capacity for the adsorbing medium for playing suction-operated in permeability absorption barrier reaction wall 2 is limited, once pollution
Thing penetration barriers layer directs out leakage and will result in security incident, and this has to defence.Therefore, in this experimental provision, if
There is the outlet pipe 6 for being installed on water side, flowmeter 7 and sample tap 8 are provided with outlet pipe 6.The purpose of sample tap 8 is periodically
The concentration of pollutant in sampling monitoring treatment fluid, it is anti-that the purpose of design discharge meter 7 is to monitor permeability absorption barrier in real time
Wall 2 is answered to handle the total amount of contaminated liquid, once permeability absorption barrier reaction wall 2 has reached failpoint and has balanced certain time,
Experiment stops.And then be fitted according to experimental data, calculate the suction in failpoint under a certain amount of adsorbing medium dynamic situation
Attached amount, for field adsorb barrier material reaction wall radial width and longitudinal thickness design and engineering construction provide it is important according to
According to.When adsorbing barrier material and reaching failpoint, it is necessary to which the absorption barrier material more renewed in time penetrates infiltration to prevent pollutant
Layer causes security incident to outward leakage.
In order to control feed speed, it is to avoid contaminated liquid filling speed is excessive, contaminated liquid of destroying by rush of water filler port 212, it is preferred that
One end that water inlet pipe 4 is located at contaminated liquid filler port 212 is provided with gondola water faucet shape shower nozzle 9.Gondola water faucet shape shower nozzle 9 plays scattered contaminated liquid
Effect.
Claims (9)
1. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall, including be vertically arranged it is permeable anti-
Ying Zhu, permeable reaction column one end is water inlet end, and the other end is water side；Permeable reaction column includes housing (1) and is filled in
The permeability absorption barrier reaction wall (2) of housing (1) inner chamber；It is characterized in that：The permeability adsorbs barrier reaction wall
(2) water filling section (21) and the infiltration section (22) below water filling section (21) are included；The water filling section (21) includes laminating housing
(1) the auxiliary barrier material layer (211) of inwall, the auxiliary barrier material layer (211) is surrounded along housing around housing (1) axis
(1) axially extending contaminated liquid filler port (212).
2. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall as claimed in claim 1, it is special
Levy and be：The water filling section (21) also includes quartz sand overcoat (213), and the quartz sand overcoat (213) is layed in pollution
The inwall of liquid filler port (212) and bottom.
3. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall as claimed in claim 2, it is special
Levy and be：The vertical range of the hole wall of the contaminated liquid filler port (212) to housing (1) inwall is equal everywhere.
4. the simulation Polluted Groundwater as described in claim 1-3 any one claims flows through permeable reaction wall
Indoor experimental apparatus, it is characterised in that：The infiltration section (22) includes N layers of quartz sand layer (221) and N+1 layers of barrier material
(222)；The barrier material (222) and quartz sand layer (221) arranged for interval.
5. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall as claimed in claim 4, it is special
Levy and be：The N is located between 1-4.
6. the simulation Polluted Groundwater as described in claim 1-3 any one claims flows through permeable reaction wall
Indoor experimental apparatus, it is characterised in that：The lower section for adsorbing barrier reaction wall (2) in permeability is provided with filter layer (3).
7. the simulation Polluted Groundwater as described in claim 1-3 any one claims flows through permeable reaction wall
Indoor experimental apparatus, it is characterised in that：Provided with the water inlet pipe (4) connected with contaminated liquid filler port (212), on water inlet pipe (4)
Provided with peristaltic pump (5).
8. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall as claimed in claim 7, it is special
Levy and be：Provided with the outlet pipe (6) for being installed on water side, flowmeter (7) and sample tap (8) are provided with outlet pipe (6).
9. simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall as claimed in claim 8, it is special
Levy and be：The one end for being located at contaminated liquid filler port (212) in water inlet pipe (4) is provided with gondola water faucet shape shower nozzle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103913.5U CN206538277U (en) | 2017-01-24 | 2017-01-24 | Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103913.5U CN206538277U (en) | 2017-01-24 | 2017-01-24 | Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206538277U true CN206538277U (en) | 2017-10-03 |
Family
ID=59940406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720103913.5U Expired - Fee Related CN206538277U (en) | 2017-01-24 | 2017-01-24 | Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206538277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850055A (en) * | 2019-10-30 | 2020-02-28 | 东南大学 | Indoor simulation PRB technique's small-size post test device |
-
2017
- 2017-01-24 CN CN201720103913.5U patent/CN206538277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850055A (en) * | 2019-10-30 | 2020-02-28 | 东南大学 | Indoor simulation PRB technique's small-size post test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Elliott et al. | Transfer of nonsorbing solutes to a streambed with bed forms: Laboratory experiments | |
| CN106145335B (en) | A kind of discontinuous permeable reactive wall repairs the system and method for polluted underground water | |
| CN103630659B (en) | Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water | |
| CN203033844U (en) | Groundwater pollution in-situ remediation simulator | |
| Reddy et al. | Effects of soil heterogeneity on airflow patterns and hydrocarbon removal during in situ air sparging | |
| CN104692531B (en) | A kind of subsoil water heavy metal pollution prosthetic device | |
| CN112830593B (en) | Groundwater sewage treatment system | |
| CN110947752A (en) | In-situ chemical oxidation remediation device for simulating polluted underground water and using method | |
| CN206578131U (en) | Soil and groundwater remediation system | |
| CN112142160A (en) | AS/MPE combined repairing system and method for underground water polluted by LNAPL | |
| CN111704180B (en) | In-situ injection device and process for strengthening groundwater pollution remediation | |
| CN202929029U (en) | Simulation test device for in-situ chemical and biological remediation of underground water | |
| Chu et al. | Clogging process by suspended solids during groundwater artificial recharge: Evidence from lab simulations and numerical modelling | |
| CN206538277U (en) | Simulation Polluted Groundwater flows through the indoor experimental apparatus of permeable reaction wall | |
| CN106781962A (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation test device | |
| CN109085325A (en) | A kind of the indoor soil-column experimental provision and method of soil pollution and repairing and treating process simulation | |
| CN211707712U (en) | In-situ chemical oxidation repair device for simulating polluted underground water | |
| CN203461868U (en) | Indoor experimental system capable of simulating permeable reactive wall | |
| CN211284065U (en) | Get rid of normal position circulation well cluster repair system of heavy metal and organic pollutant in groundwater | |
| CN106630235A (en) | Indoor experiment device for simulating polluted underground water flowing through permeable reaction wall | |
| CN211255613U (en) | Get rid of organic pollutant's normal position circulation well cluster repair system in groundwater | |
| CN111018080A (en) | Test device for treating petroleum hydrocarbon pollutants in underground water and application thereof | |
| CN213968298U (en) | Be used for prosthetic heterogeneous extraction well structure of preventing blockking up in contaminated site | |
| CN216175295U (en) | In-situ remediation structure for contaminated site soil | |
| Kwak et al. | Longevity evaluation of non-pumping reactive wells for control of groundwater contamination: Application of upscaling methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171003 Termination date: 20190124 |