CN105510258A - Experiment method of transporting nitrate on underground water-lake interface with aquatic plants - Google Patents
Experiment method of transporting nitrate on underground water-lake interface with aquatic plants Download PDFInfo
- Publication number
- CN105510258A CN105510258A CN201511018494.7A CN201511018494A CN105510258A CN 105510258 A CN105510258 A CN 105510258A CN 201511018494 A CN201511018494 A CN 201511018494A CN 105510258 A CN105510258 A CN 105510258A
- Authority
- CN
- China
- Prior art keywords
- water
- nitrate
- lake
- sediment
- nitrate nitrogen
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N21/3151—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/3155—Measuring in two spectral ranges, e.g. UV and visible
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to an experiment method of transporting nitrate on an underground water-lake interface with aquatic plants and belongs to the field of hydraulic engineering, geological engineering and environment engineering. The experiment method comprises the following steps: preparing artificial underground water and pre-treating; operating an experiment device and adding nitrate; switching on a peristaltic pump and inputting the artificial underground water into a lower water tank; pumping the water from the lower water tank to an upper water tank through a pumping effect of the peristaltic pump, wherein the upper water tank and the lower water tank have hydraulic exchange; continuously and circularly operating until balance is realized after exchange between overlying water and a lake bed; monitoring nitrate at fixed time in a circular operation process; and carrying out nitrogen balancing and water balancing analysis. By adopting the self-made experiment device (composed of the upper water tank, sediment and the lower water tank), the defects of non-visibility and difficulty in monitoring of underground water are effectively made up; and the peristaltic pump is used for controlling a flow speed of the underground water, a surface water-underground water interaction effect can be directly described and the transportation of nitrate on the underground water-lake interface is monitored.
Description
Technical field
The present invention relates to a kind of nitrate at the experimental technique having the underground water-interface, lake of hydrophyte to migrate, belong to hydraulic engineering, Geological Engineering and field of environment engineering.
Background technology
Underground water-lake reciprocation becomes the important controlling factor of of lake ecological in a lot.Underground water is the important ingredient of of Lake Water equilibrium, and biomass geochemistry and the ecological process that row's relation finally may determine lake is mended in this underground water-lake.A lot of research display underground water has important contribution to Lakes in Nutrition salt equilibrium, pore water chemical composition, aquatic plants growth, and the nutritive salt that seepage action of ground water carries accounts for 50% of a lot of Lakes in Nutrition salt.The eutrophication key controlling lake is the nutrient concentrations controlling lake water, and the key controlling nutrient concentrations cuts off the input of nutriment, find out the transport way of nutriment and controlled to be administer the important content of lake eutrophication, the nutritive salt therefore how controlling to enter lake by the means of control underground water-interface, lake seepage action of ground water causes concern.
To enter lake different from surface water, due to reasons such as visual poor, the monitoring difficulty of underground water and somewhat expensives, are in continuous heuristic process all the time, particularly about underground water to the contribution research of Lakes in Nutrition material seldom, and also not yet enough attention.In the water balance estimation in lake, the qualitative examination of groundwater lake inflow is more, and Quantitative study is less, affects the accuracy of Water Balance of Lakes and nutriment EQUILIBRIUM CALCULATION FOR PROCESS all the time.For the subject matter that current underground water exists the contribution research aspect of Lakes in Nutrition material, research concentrates on the flux at underground water-interface, lake, simultaneously due to reasons such as visual poor, the monitoring difficulty of underground water and somewhat expensives, lack nitrate and study at the transition process at the underground water-interface, lake having submerged plant.
Summary of the invention
Technical matters to be solved by this invention is for Problems existing in above-mentioned background technology, a kind of Sample and measurement that can be effective is provided to study the nitrate of nitrate transfer rule at the experimental technique having the underground water-interface, lake of hydrophyte to migrate, for providing theoretical foundation and technical support for the research of nitrate pollutants in underground water-interface, lake, for controlling the input of seepage action of ground water Middle nutrition material, administering lake eutrophication and theoretical foundation is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: nitrate, there being the experimental technique of the underground water of hydrophyte-interface, lake migration, is characterized in that, comprises the steps:
(1) prepare artificial ground water and carry out pre-service: with there is nitrate ion solution as artificial ground water, collects and clean particle size be the sand of 0.5-1mm as sediment, get submerged plant clean after as experimental subjects;
(2) running experiment device add nitrate: experimental provision is divided into two parts, and upper water box, for simulating lake water, adds deionized water at the experiment initial stage to upper water box, recorded initial water level; Lower header is for simulating the artificial ground water containing nitrate; Between upper water box and lower header, have one deck sedimentary deposit, sedimentary deposit is made up of sediment, is provided with filter screen between sedimentary deposit and lower header, and sedimentary deposit is positioned on filter screen, makes underground water-interface, lake; Sedimentary deposit adds submerged plant, makes submerged plant root system imbed in sand; Open peristaltic pump, start to input artificial ground water in lower header, simultaneously by peristaltic pump pump-absorb action, make artificial ground water from lower header to upper water box, waterpower occurs between upper water box and lower header exchange, persistent loop runs and makes to exchange between overlying water and lakebed to reach balance;
(3) periodic monitor of nitrate in circular flow process: extract overlying water and pore water by predetermined time from experimental provision, fully rock, measure nitrate concentration with ultraviolet spectrophotometer;
(4) after experiment terminates, by sediment hierarchical block, average decile some pieces, then piecemeal measures the nitrate nitrogen content in every block sediment; Finally obtain nitrate nitrogen total amount in sediment by cumulative for every block nitrate nitrogen content;
The method measuring the nitrate nitrogen content in every block sediment is: in every block, take out the husky sample of certain volume with getting husky device, the nitrate contained in separation of sediment after sampling: with the vibration of supersonic oscillations instrument, be separated the nitrate retaining and be adsorbed on silt surface by ultrasound wave, then measure nitrate nitrogen content.
(5) experimentally in device Lake shoal statistics by the nitrogen pool (namely following input nitrate nitrogen amount) of peristaltic pump input artificial ground water, the nitrogen concentration analyzed in lake water calculates lake water amount according to lake stage over time again, then calculate the total nitrate nitrogen amount in lake water, finally carry out nitrogen equilibrium and hydrologic(al) budget analysis.
Nitrate nitrogen gauge in lake water is calculated: experimentally in device, the upper water box Lake shoal of Real-Time Monitoring and upper water box sectional area product calculate upper water box water yield volume change, calculate the nitrate nitrogen amount in lake water by the product of nitrogen concentration in lake water volume and lake water;
Input nitrate nitrogen gauge is calculated: in the artificial ground water of upper water box water yield volume change and lower header, nitrate product calculates total nitrate nitrogen amount of input;
In sediment, nitrate nitrogen gauge is calculated: by sediment hierarchical block, average decile some pieces, and then piecemeal measures the nitrate nitrogen content in every block sediment; The step of the nitrate nitrogen content that piecemeal measures in every block sediment is: with the vibration of supersonic oscillations instrument, be separated the nitrate retaining and be adsorbed on silt surface, and measure nitrate nitrogen content by ultrasound wave; Finally obtain nitrate nitrogen total amount in sediment by cumulative for every block nitrate nitrogen content;
Balanced and the hydrologic(al) budget analysis of nitrogen to refer in input nitrate nitrogen amount=lake water nitrate nitrogen amount+plant absorption and volatile quantity in nitrate nitrogen amount+sediment.
In step (1), artificial ground water is by KNO
3, KH
2pO
4, CaCl
2and MgSO
4configuration forms.
In step (2), the rotating speed of peristaltic pump is 0.8rpm, and peristaltic pump is at the uniform velocity to lower header input artificial ground water.
In step (4), be separated the colloid be trapped on silt surface with ultrasound wave, supersonic oscillations instrument vibration 2h.
In step (2), before opening peristaltic pump, checking experiment device whether leak and experimental provision whether normal, as deionized water rinsing experimental provision without exception, cleaned sand is forwarded in the upper water box of experimental provision, manually spin upside down husky bed several times, to get rid of the gas in husky bed completely.
In step (1), in artificial ground water, nitrate concentration is 30mg/L.
In step (2), between overlying water and lakebed, exchange reaches to balance and refers to that the concentration of overlying water nitrate reaches steady state (SS).
The present invention has following beneficial effect:
(1) the present invention adopts self-made experimental device (upper water box+sediment+lower header), effectively compensate for the defect of the not visible property of underground water, monitoring difficulty, use peristaltic pump to control the flow velocity of underground water, surface water-underground water reciprocation can be portrayed very intuitively and monitor nitrate in underground water-interface, lake migration.(2) nitrate stratified sampling in the present invention, has carried out layering to sediment, ensure that the orderly of sampling and makes husky sample representative, having accomplished scientific measurement.(3) small part nitrate can only be separated owing to manually swaying adopted husky sample, for the Measurement accuracy reaching nitrate concentration need adopt supersonic oscillations instrument to vibrate, find through practice, the Best Times of vibration is 2h, substantially constant more than 2h shake number, show that the nitrate on grains of sand surface departs from substantially, through constantly practice during measurement, summed up the nutritive salt that on underground water-interface, lake, underground water carries and entered the concrete scope measured in lake.This method can make up underground water and enter the defect that Lakes in Nutrition salt is difficult to quantitatively calculate.
Accompanying drawing explanation
Fig. 1 is experimental facilities schematic diagram of the present invention, wherein 1, upper water box; 2, iron wire filter screen; 3, lower header; 4, peristaltic pump; 5, plastic containers;
Fig. 2 is pollutant nitrate concentration graph of a relation over time in overlying water, and after can finding out 14 days, nitrate enters concentration in lake water and tends towards stability, this mainly river overlying water substantially reach consistent result with the concentration of pore water.As can be seen here, the inventive method can be good at reflection nitrate at lake overlying water and interstitial exchange process.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Nitrate, there being the experimental technique of the underground water of hydrophyte-interface, lake migration, comprises the steps:
(1) prepare artificial ground water and carry out pre-service: with has the solution of variable concentrations gradient nitrate radical and urea as artificial ground water, collection cut size size be 0.5-1mm sand and with deionized water clean as sediment, get the length submerged plant close with size clean after as experimental subjects; The submerged plant of experiment be separated postlyophilization and smash to pieces, crossing 100 mesh sieve dress sealing bag Cord blood;
(2) running experiment device add nitrate: clean experimental provision (as accompanying drawing 1), experimental provision is divided into two parts, and upper water box 1 is mainly used in simulating lake water, adds deionized water wherein, recorded initial water level at the experiment initial stage; Lower header 3 is mainly used in simulating the underground water containing nitrate; One deck sedimentary deposit is had between upper water box and lower header, the sand that sedimentary deposit is 0.5-1mm by the particle size cleaned is formed, iron wire filter screen 2 is provided with between sedimentary deposit and lower header, sedimentary deposit is arranged on filter screen, make underground water-interface, lake, add clean submerged plant at sedimentary deposit, submerged plant root system is imbedded in sand.
Whether checking experiment device leaks and whether other parts of experimental provision system normally run, and when experimental provision does not have abnormal, then uses deionized water rinsing experimental provision 2 times, and wipes clean wall and the bottom of experimental provision with rag.Then cleaned sand is forwarded in the upper water box of experimental provision, the husky bed twice of artificial upset, by upset of turning upside down shown in Fig. 1, to get rid of the gas in husky bed completely, makes husky bed be in completely saturated state.
Artificial ground water prepared by step (1) is put into plastic containers 5, by rubber tube, peristaltic pump is connected with lower header, open peristaltic pump 4, start to input artificial ground water in lower header, in artificial ground water, nitrate concentration is 30mg/L, make that waterpower occurs between upper water box and lower header to exchange, and underground water is fully circulated in experimental provision; Persistent loop runs, and waterpower between overlying water and lakebed is exchanged and reaches balance; Peristaltic pump control current input speed be 0.001cm/min, the rotating speed of peristaltic pump is 0.8rpm, at the uniform velocity to lower header input artificial ground water, peristaltic pump husky bed be in completely saturated after startup.
(3) periodic monitor of nitrate in cyclic process: extract overlying water by predetermined time.Extract overlying water from the position that upper water box three is different in first 30 minutes, at this moment because nitrate is uneven in the mixing of overlying water when experiment starts, single position is not representative, fully rocks, and measures nitrate concentration with ultraviolet spectrophotometer simultaneously; By the pump-absorb action of peristaltic pump, make water from lower header to upper water box, iron wire filter screen is positioned at below sedimentary deposit, the effect of filter screen: set up the interface that surface water-underground water exchanges, and stops sediment to fall under gravity into lower header.
(4) each experiment approximately continues 14 days, until stop experiment when the concentration of overlying water nitrate reaches basicly stable.Simultaneously in order to can accurately reaction experiment data, each overlying water sample extracted of measuring will be measured within 12 hours.
(5) after experiment terminates, by sediment hierarchical block, average decile some pieces, takes out the husky sample of certain volume with getting husky device in every block; Be divided into some deciles by degree of depth 1cm from top to bottom, then with get husky device by get in every block 10g sand put into 1L distillation shake;
(6) nitrate contained in separation of sediment after sampling: first manually sway, making to adsorb the not strong nitrate disengaging grains of sand between its grains of sand space enters in solution, and then utilize supersonic oscillations instrument to carry out vibrating (oscillation frequency 53Khz, power: 180W), it is 2 hours that duration of oscillation experimentally measures the Best Times drawn.Mainly the migration of nitrate in porous medium and deposition conditions is determined by the concentration of nitrate in simulation lake water in whole test.
(7) nitrogen pool experimentally in device in Lake shoal statistics peristaltic pump input artificial ground water, the concentration analyzed in lake water calculates lake water amount according to lake stage over time again, then calculate the nitrogen pool in lake water, finally carry out nitrogen equilibrium and hydrologic(al) budget analysis.Experimental result is for shown in Fig. 2 and table 1.
Table 1 underground water carries nitrate and enters lake gauge calculation
Nitrate enters concentration in lake water and tends towards stability after can finding out 14 days, this mainly river overlying water substantially reach consistent result with the concentration of pore water.
In sum: a kind of laboratory experiment method that the present invention adopts nitrate to migrate at the underground water-interface, lake with hydrophyte, the artificial ground water adopting homemade device to observe to carry nitrate by behind the underground water-interface, lake with hydrophyte, nitrate concentration change in sediment, lake.Utilize ultrasound wave to be separated and be trapped in nitrate in sediment hole, use spectrophotometer measurement nitrate solution concentration method, monitoring nitrate is having the transition process at underground water-interface, lake of vegetation.The underground water with hydrophyte of complexity-interface, lake nitrate concentration measurement is simplified to handled easily and lower-cost method by the present invention, nitrate layering can be caught and retain situation, utilize ultrasound wave to be separated nitrate and use ultraviolet spectrophotometer to measure nitrate concentration, disclose the transition process of nitrate at underground water-interface, lake, sediment combined closure system can be monitored, the migration of quantitative test nitrate at underground water-interface, lake and Interception process, disclose the exchange of nitrate at overlying water and pore water, deposition distribution in lakebed, the aquatic vegetation of lake-bottom controls by its root growth " waterpower barrier " mechanism and the rule that seepage flow and nutritive salt enter lake, for controlling the input of seepage action of ground water Middle nutrition material, administer lake eutrophication and theoretical foundation is provided.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. nitrate is there being the experimental technique of the underground water of hydrophyte-interface, lake migration, it is characterized in that, comprises the steps:
(1) prepare artificial ground water and carry out pre-service: with there is nitrate ion solution as artificial ground water, collects and clean particle size be the sand of 0.5-1mm as sediment, get submerged plant clean after as experimental subjects;
(2) running experiment device add nitrate: experimental provision is divided into two parts, and upper water box, for simulating lake water, adds deionized water at the experiment initial stage to upper water box, recorded initial water level; Lower header is for simulating the artificial ground water containing nitrate; Between upper water box and lower header, have one deck sedimentary deposit, sedimentary deposit is made up of sediment, is provided with filter screen between sedimentary deposit and lower header, and sedimentary deposit is arranged on filter screen, makes underground water-interface, lake; Sedimentary deposit adds submerged plant, makes submerged plant root system imbed in sand; Open peristaltic pump, start to input artificial ground water in lower header, simultaneously by peristaltic pump pump-absorb action, make water from lower header to upper water box, waterpower occurs between upper water box and lower header and exchanges, persistent loop runs and makes to exchange between overlying water and lakebed to reach balance;
(3) periodic monitor of nitrate in circular flow process: extract overlying water and pore water by predetermined time from experimental provision, fully rock, measure nitrate concentration with ultraviolet spectrophotometer;
(4) after experiment terminates, by sediment hierarchical block, average decile some pieces, then piecemeal measures the nitrate nitrogen content in every block sediment; Finally obtain nitrate nitrogen total amount in sediment by cumulative for every block nitrate nitrogen content;
(5) experimentally in device Lake shoal statistics by the nitrogen pool in peristaltic pump input artificial ground water, the nitrogen concentration analyzed in lake water calculates lake water amount according to lake stage over time again, then calculate the total nitrate nitrogen amount in lake water, finally carry out nitrogen equilibrium and hydrologic(al) budget analysis.
2. nitrate according to claim 1 is there being the experimental technique of the underground water of hydrophyte-interface, lake migration, it is characterized in that, in step (5),
Nitrate nitrogen gauge in lake water is calculated: experimentally in device, the upper water box Lake shoal of Real-Time Monitoring and upper water box sectional area product calculate upper water box water yield volume change, calculate the nitrate nitrogen amount in lake water by the product of nitrogen concentration in lake water volume and lake water;
Input nitrate nitrogen gauge is calculated: in the artificial ground water of upper water box water yield volume change and lower header, nitrate product calculates total nitrate nitrogen amount of input;
In sediment, nitrate nitrogen gauge is calculated: by sediment hierarchical block, average decile some pieces, and then piecemeal measures the nitrate nitrogen content in every block sediment; The step of the nitrate nitrogen content that piecemeal measures in every block sediment is: with the vibration of supersonic oscillations instrument, be separated the nitrate retaining and be adsorbed on silt surface, and measure nitrate nitrogen content by ultrasound wave; Finally obtain nitrate nitrogen total amount in sediment by cumulative for every block nitrate nitrogen content;
Plant absorption and volatile quantity: nitrate nitrogen amount in nitrate nitrogen amount-sediment in plant absorption and volatile quantity=input nitrate nitrogen amount-lake water;
Balanced and the hydrologic(al) budget analysis of nitrogen to refer in input nitrate nitrogen amount=lake water nitrate nitrogen amount+plant absorption and volatile quantity in nitrate nitrogen amount+sediment.
3. nitrate according to claim 1 is there being the laboratory experiment method of the underground water of hydrophyte-interface, lake migration, it is characterized in that: in step (1), artificial ground water is by KNO
3, KH
2pO
4, CaCl
2and MgSO
4configuration forms.
4. nitrate according to claim 1 has the laboratory experiment method of the underground water of hydrophyte-interface, lake migration, and it is characterized in that: in step (2), the rotating speed of peristaltic pump is 0.8rpm, and peristaltic pump is at the uniform velocity to lower header input artificial ground water.
5. nitrate according to claim 1 has the laboratory experiment method of the underground water of hydrophyte-interface, lake migration, it is characterized in that: in step (4), the colloid be trapped on silt surface is separated, supersonic oscillations instrument vibration 2h with ultrasound wave.
6. nitrate according to claim 1 has the laboratory experiment method of the underground water of hydrophyte-interface, lake migration, it is characterized in that: in step (2), before opening peristaltic pump, checking experiment device whether leak and experimental provision whether normal, as deionized water rinsing experimental provision without exception, cleaned sand is forwarded in the upper water box of experimental provision, manually spins upside down husky bed several times, to get rid of the gas in husky bed completely.
7. the flume experiment method that transports in phreatic zone of colloid according to claim 1, it is characterized in that: in step (1), in artificial ground water, nitrate concentration is 30mg/L.
8. the flume experiment method that transports in phreatic zone of colloid according to claim 1, is characterized in that: in step (2), exchanges to reach balance and refer to that the concentration of overlying water nitrate reaches steady state (SS) between overlying water and lakebed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018494.7A CN105510258B (en) | 2015-12-29 | 2015-12-29 | Experimental method of the nitrate in the underground water lake interface migration for having water plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018494.7A CN105510258B (en) | 2015-12-29 | 2015-12-29 | Experimental method of the nitrate in the underground water lake interface migration for having water plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105510258A true CN105510258A (en) | 2016-04-20 |
| CN105510258B CN105510258B (en) | 2018-01-19 |
Family
ID=55718395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511018494.7A Active CN105510258B (en) | 2015-12-29 | 2015-12-29 | Experimental method of the nitrate in the underground water lake interface migration for having water plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105510258B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644385A (en) * | 2017-01-24 | 2017-05-10 | 西安理工大学 | Surface water and underground water undercurrent exchange self-loop test device and usage method thereof |
| EP3441759A4 (en) * | 2017-06-12 | 2019-05-29 | Hohai University | Device for measuring pollutant adsorption/desorption characteristic of surface bed sediments and use method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2157861B1 (en) * | 2000-01-19 | 2002-03-16 | Gonzalez Luis Javier Fabregas | SYMBOLIC WASTEWATER CLEANER. |
| CN202075201U (en) * | 2011-06-13 | 2011-12-14 | 云南大学 | Groundwater seepage simulation test device |
| CN102359084B (en) * | 2011-07-29 | 2013-07-03 | 中国农业大学 | Simulation regulation and control system and method of percolation performance of aeration zone of river or lake |
| CN103743879B (en) * | 2013-12-31 | 2015-07-29 | 河海大学 | The experimental simulation method of operating of contaminant transportation under suddenly accident |
-
2015
- 2015-12-29 CN CN201511018494.7A patent/CN105510258B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644385A (en) * | 2017-01-24 | 2017-05-10 | 西安理工大学 | Surface water and underground water undercurrent exchange self-loop test device and usage method thereof |
| CN106644385B (en) * | 2017-01-24 | 2023-03-28 | 西安理工大学 | Surface water and underground water subsurface flow exchange self-circulation test device and use method |
| EP3441759A4 (en) * | 2017-06-12 | 2019-05-29 | Hohai University | Device for measuring pollutant adsorption/desorption characteristic of surface bed sediments and use method therefor |
| AU2017399742B2 (en) * | 2017-06-12 | 2019-06-06 | Hohai University | Device for measuring adsorption/desorption characteristic of surface bed sediments on contaminants and method of using the device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105510258B (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105547955B (en) | A kind of native permanent current speed infiltration blocking test method | |
| JP6698171B2 (en) | Apparatus for measuring adsorption/desorption characteristics of pollutants of river bed surface material and method of using the same | |
| CN103163054B (en) | A kind of method measuring soil inner macropores structural parameters | |
| CN203929569U (en) | For studying the analogue means of wetland soil-water termination heavy metal Transport And Transformation | |
| CN102590479A (en) | River and lake bottom sludge pollutant flux test method and device based on diffusion theory | |
| Gao et al. | Estimation of N2 and N2O ebullition from eutrophic water using an improved bubble trap device | |
| CN106802272A (en) | Fracture network anisotropy of permeability is tested and visualization system | |
| CN105510258A (en) | Experiment method of transporting nitrate on underground water-lake interface with aquatic plants | |
| CN104729845B (en) | Drip irrigation below the surface device anti-blocking performance test device | |
| CN105004845A (en) | Method for promoting release of supersaturated total dissolved gas by using active carbon and experimental apparatus | |
| CN103493760B (en) | Simulation test method for survival rate of offspring seeds in enhancement and releasing transportation | |
| CN111899623A (en) | Sediment phosphorus occurrence form simulation device and phosphorus release amount evaluation method | |
| CN209570479U (en) | Evapotranspiration of grassland amount determining device | |
| CN115754248A (en) | Diving-soil moisture movement tracing experimental device and method under freezing condition based on radon isotope | |
| CN209188255U (en) | A kind of device of fast lifting water transparency | |
| CN208937464U (en) | Solute exchanges simulator between soil macropore domain and matrix domain | |
| CN103940769B (en) | The flume experiment method that colloid transports in phreatic zone | |
| CN104963663A (en) | Large liquid measure constant pressure displacement indoor physical simulation experiment device | |
| CN210865330U (en) | Circulation simulation device driven by uniform density in coastal aquifer | |
| CN104963664B (en) | Physical simulation experiment method in big liquid measure constant pressure displacement room | |
| CN108279190B (en) | Device for simulating solute exchange between soil macropore domain and matrix domain and application method thereof | |
| CN211426149U (en) | Device for automatically monitoring suspended load silt by displacement method | |
| Lu et al. | Characteristics and pollution contribution of the internal nitrogen release from the sediments in the Dahekou Reservoir in Inner Mongolia | |
| CN207324606U (en) | Salt water device for formulating is used in one kind experiment | |
| CN110595931A (en) | Method and device for automatically monitoring suspended load silt by displacement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |