CN111999468A - Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements - Google Patents
Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements Download PDFInfo
- Publication number
- CN111999468A CN111999468A CN201910444312.4A CN201910444312A CN111999468A CN 111999468 A CN111999468 A CN 111999468A CN 201910444312 A CN201910444312 A CN 201910444312A CN 111999468 A CN111999468 A CN 111999468A
- Authority
- CN
- China
- Prior art keywords
- soil
- container
- migration
- nutrient elements
- researching
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- G01N33/24—Earth materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a simulation experiment device for researching the migration and conversion kinetic characteristics of soil nutrient elements, which comprises a container, wherein a soil layer and a quartz sand layer are laid in the container, the top of the container is provided with a water distribution port, the bottom of the container is laid with non-phosphorus filter paper, a receiving bottle is connected below the container, the wall of the container is provided with a soil sampling port and an leachate sampling port, and the surface of the receiving bottle is sealed with a sealing film. According to the invention, the migration and transformation characteristics of nutrient elements in soil in the horizontal and vertical directions can be considered independently, the migration and transformation rules of the nutrient elements in the soil profile in different seasons and under water-containing conditions can be analyzed systematically, and the migration and transformation kinetic characteristics of the nutrient elements in the soil can be obtained; be convenient for through the valve control leachate of delivery port department, drench the solution receiving flask and pass through seamless connection between rubber tube and the delivery port, can guarantee to drench the solution and not evaporated, be favorable to the normal clear of experiment.
Description
Technical Field
The invention relates to an experimental device, in particular to a simulation experimental device for researching the migration and transformation kinetic characteristics of soil nutrient elements.
Background
The migration of the nutrient elements in the soil along with the moisture is a comprehensive behavior process of adsorption, desorption and even redistribution of the nutrient elements among water-soil particles; the conversion of nutrient elements refers to the conversion of different forms of nutrient elements. Under the conditions of rain and snow weather or irrigation, the nutrient elements in the soil inevitably undergo migration transformation, or vertical migration transformation or horizontal migration transformation between the water body and the soil, so that the nutrient elements in the soil can enter underground water or surface water through the migration transformation, and the water body pollution is caused. Therefore, it is necessary to research the migration and transformation characteristics of nutrient elements in soil-water under leaching conditions. Because of the difficulty of collecting filtrate and soil samples with different depths in field experiments, indoor simulation experiments are mostly adopted for researching the migration characteristics of soil nutrient elements, however, the current soil column simulation device used in a laboratory only considers the migration and transformation rules of the soil nutrient elements in the vertical direction, and few researches are carried out on the migration and transformation rules in the horizontal direction, so that the research on the migration characteristics of the soil nutrient elements is not comprehensive enough.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a simulation experiment device for researching the migration and transformation kinetic characteristics of soil nutrient elements.
The technical scheme is as follows: the filter comprises a container, wherein a soil layer and a quartz sand layer are laid in the container, a water distribution port is arranged at the top of the container, non-phosphorus filter paper is laid at the bottom of the container, a receiving bottle is connected to the lower part of the container, a soil sampling port and an leachate sampling port are arranged on the wall of the container, and a sealing film is sealed on the surface of the receiving bottle.
The container comprises a vertical container and a horizontal container.
The soil layer and the quartz sand layer in the vertical container are arranged in a crossed mode, wherein a soil sampling port is formed in the side wall of the soil layer, and an leachate sampling port is formed in the side wall of the quartz sand layer, so that soil and leachate samples in different soil layers can be collected without a dividing device.
The level is 1.5 meters to container head and tail end difference in height, and the level has soil to the container intussuseption, and the quartz sand layer is laid to the soil horizon below for the primary filter of different horizontal position water samples, wherein, is equipped with five at least soil sample connection in the soil horizon, and the quartz sand layer lateral wall is equipped with five at least leachate sample connections, so that can gather soil and leachate sample in the different positions not split device.
And a quartz sand layer is laid above the non-phosphorus filter paper and is used for preliminarily filtering a water sample leached by the soil column.
The bottom of the container is provided with a water outlet, a rubber pipe is inserted into the water outlet, the rubber pipe is provided with a valve, the bottom of the container stretches into the receiving bottle, and the bottleneck of the receiving bottle is sealed by a sealing film so as to reduce water sample evaporation.
The container is made of PVC pipes, a support is fixed at the bottom of the container, and the device main body and the support are detachable, so that the device is convenient for filling soil columns and being used repeatedly.
The water distribution port adopts a mesh screen shape, so that the impact force of water falling to the soil surface layer is smaller during simulated eluviation, and the disturbance of water eluviation to the soil column surface layer is reduced.
The soil sampling port is provided with a rubber piston, and the rubber piston is taken down during sampling.
The leachate sampling port is provided with a valve, so that the water outlet speed and time can be controlled, and meanwhile, the leaching device is convenient to use when the water is not smooth.
Has the advantages that: according to the invention, the migration and transformation characteristics of nutrient elements in soil in the horizontal and vertical directions can be considered independently, the migration and transformation rules of the nutrient elements in the soil profile in different seasons and under water-containing conditions can be analyzed systematically, and the migration and transformation kinetic characteristics of the nutrient elements in the soil can be obtained; be convenient for through the valve control leachate of delivery port department, drench the solution receiving flask and pass through seamless connection between rubber tube and the delivery port, can guarantee to drench the solution and not evaporated, be favorable to the normal clear of experiment.
Drawings
FIG. 1 is a schematic view of a horizontal earth pillar arrangement of the present invention;
FIG. 2 is a schematic view of a vertical earth pillar arrangement of the present invention;
FIG. 3 is a graph showing the change of pH with time of the soil in this example;
FIG. 4 is a graph showing the TOC content of soil in this example over time;
FIG. 5 is a graph showing the change of soil TN with time in this example;
fig. 6 is a graph showing the time-dependent change of soil TP in this example.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 2, the invention comprises a horizontal earth column device and a vertical earth column device, each of which comprises a water distribution port 1, a soil sampling port 2, a leachate sampling port 3, a quartz sand layer 4, a non-phosphorus filter paper 5, a sealing film 6, a receiving bottle 7 and a bracket 8.
As shown in figure 1, the horizontal earth pillar device comprises a horizontal container, wherein the container is made of a PVC pipe, is of a hollow cylindrical structure, has the diameter of 20cm, the wall thickness of 0.5cm and the length of 10m, and has a certain angle with the horizontal plane when horizontally arranged, and the height difference between the head end and the tail end of the container is 1.5 m. Soil is filled in the horizontal container, and a 2cm quartz sand layer 4 is laid below the soil layer and is used for primary filtration of water samples taken at different horizontal positions. The upper part of the container is provided with a water distribution port 1, the water distribution port 1 is in a mesh screen shape, and the impact force of underwater falling on the soil surface layer is smaller when leaching is simulated, so that the disturbance of water leaching on the soil column surface layer is reduced. Be equipped with five soil sample connection 2 on the container wall, 2 meters evenly distributed at the axis interval of soil sample connection 2 along the container, 2 departments of soil sample connection are equipped with rubber piston, take off the piston during the sample can. Five leachate sampling ports 3 are correspondingly arranged under the soil sampling port 2, so that the soil and leachate samples at different horizontal positions can be collected without a dividing device. A layer of quartz sand layer 4 with the thickness of 2cm is laid on the inner side of the pipe wall provided with the leachate sampling port 3 and is used for primary filtration of water samples taken at different horizontal positions. The container bottom is equipped with the delivery port, and delivery port department has spread 5cm thick quartz sand layer and four layers of phosphorus-free filter paper 5 in proper order for carry out prefilter to the water sample that the earth pillar eluviation, and delivery port department has inserted the rubber tube, is equipped with the valve on the rubber tube, and in the receiving flask 7 was stretched into to the bottom, the bottleneck department of receiving flask 7 was sealed with sealing film 6, in order to reduce the water sample evaporation. The leachate sampling port 3 is also provided with a rubber tube on which a valve is arranged. The lower part of the container is fixed through a support 8, and the device main body and the support 8 are detachable, so that the earth pillar can be conveniently filled and the device can be used repeatedly. The valves at the water outlet and the leachate sampling port 3 can control the water outlet speed and time, the leaching of leachate in soil can be manually controlled, and when the leachate sampling port 3 is unsmooth in water outlet, the leaching device can be directly used for leaching.
As shown in figure 2, the vertical column apparatus comprises a vertical container made of PVC pipe and adopting a hollow cylindrical structure with a diameter of 20cm, a wall thickness of 0.5cm and a height of 150 cm. The soil layer and the quartz sand layer 4 in the vertical container are arranged in a crossed mode, three soil layers and three quartz sand layers 4 are arranged respectively, and 2cm quartz sand layers 4 are laid below each soil layer and used for primary filtration of water samples taken from different soil layers. The upper part of the container is provided with a water distribution port 1, the water distribution port 1 is in a mesh screen shape, and the impact force of underwater falling on the soil surface layer is smaller when leaching is simulated, so that the disturbance of water leaching on the soil column surface layer is reduced. Every layer soil horizon all is equipped with a soil sample connection 2, and soil sample connection 2 distributes along the axis interval 40cm of container, and 2 departments of soil sample connection are equipped with rubber piston, and it can to take off the piston during the sample. The right side of each quartz sand layer 4 is provided with an leachate sampling port 3, so that the soil and leachate samples in different soil layers can be collected without a dividing device. The container bottom is equipped with the delivery port, and delivery port department has spread 5cm thick quartz sand layer and two-layer phosphorus-free filter paper 5 in proper order for carry out prefilter to the water sample that the earth pillar eluviation, and delivery port department has inserted the rubber tube, is equipped with the valve on the rubber tube, and in the receiving flask 7 was stretched into to the bottom, the bottleneck department of receiving flask 7 was sealed with sealing film 6, in order to reduce the water sample evaporation. The leachate sampling port 3 is also provided with a rubber tube on which a valve is arranged. The container below is fixed through support 8, and the upper surface of support 8 and the lower surface parallel and level of container are detachable between device main part and the support 8, are convenient for fill the earth pillar and used repeatedly. The valves at the water outlet and the leachate sampling port 3 can control the water outlet speed and time, the leaching of leachate in soil can be manually controlled, and when the leachate sampling port 3 is unsmooth in water outlet, a leaching device (the prior art) is connected to the valve at the leachate sampling port 3 for leaching.
Example 1:
firstly, vertically coating vaseline on the inner wall of a container to reduce marginal effect, then placing two layers of phosphorus-free filter paper on the bottom layer of the device, and paving 5cm of quartz sand on the filter paper to prevent soil at the lower end of the earth pillar from flowing out along with water and simultaneously preliminarily filtering percolate in the earth pillar. The soil filled into the soil column firstly passes through a 10mm nylon sieve (the particles are prevented from being too large, the filling gap of the soil column is too much to reach the leaching effect, and meanwhile, the soil cannot be too fine to prevent the soil from being too dense and leaching liquid is too little), and then the soil is filled layer by layer according to the actual volume weight of the soil collection ground. After the filling of the soil column is finished, water is slowly added from the water distribution port. The vertical earth pillar is provided with three soil sampling points of a surface layer, a subsurface layer and a deep layer in different levels. Water is added at the water distribution port every three days, soil samples and leachate are taken every 15 days for determination of the content of nutrient elements, including the pH value, the content of Total Organic Carbon (TOC), the content of Total Nitrogen (TN), the content of Total Phosphorus (TP) and the like, and the obtained curve chart is shown in fig. 4-6.
When the horizontal soil column device is used, in order to reduce marginal effect, vaseline needs to be smeared on the inner wall, four layers of phosphorus-free filter paper are placed at the water outlet, then quartz sand with the thickness of 5cm is added, then a thin layer of quartz sand is slowly added and laid on the lower half-circle wall of the horizontal soil column, and soil (the soil passes through a 10mm nylon sieve firstly) is filled according to the volume weight of in-situ soil. After filling, water is slowly added, and different water amounts are added according to different requirements. And (3) simulating from left to right by using a horizontal soil column from a water side to a highland, uniformly arranging five sampling points, and respectively collecting a soil sample and a leachate water sample to determine the content of the nutrient elements.
The soil column device can be used for simulating and researching the migration and transformation characteristics of nutrient elements in soil sections under different conditions by matching the soil water content with different soil water contents in different seasons.
Claims (10)
1. The utility model provides a research soil nutrient element migration and conversion kinetics characteristic's simulation experiment device, a serial communication port, includes the container, the container in laid soil horizon and quartz sand layer, the container top is equipped with the water distribution mouth, phosphorus-free filter paper has been laid to the bottom, the below is connected with the receiving flask, the container wall on be equipped with soil sample connection and leachate sample connection, receiving flask surface seal have the sealing membrane.
2. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements according to claim 1, wherein the container comprises a vertical container and a horizontal container.
3. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements as claimed in claim 2, wherein the soil layer and the quartz sand layer in the vertical container are arranged in a crossed manner, wherein the soil layer is provided with a soil sampling port on the side wall, and the quartz sand layer is provided with an leachate sampling port on the side wall.
4. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements according to claim 2, wherein the height difference between the head end and the tail end of the horizontal container is 1.5 m, the horizontal container is filled with soil, a quartz sand layer is laid below the soil layer, at least five soil sampling ports are arranged in the soil layer, and at least five leachate sampling ports are arranged on the side wall of the quartz sand layer.
5. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements according to claim 1, wherein a quartz sand layer is further laid above the non-phosphorus filter paper.
6. The simulation experiment device for researching the migration and conversion kinetic characteristics of the nutrient elements in the soil as claimed in claim 1, wherein a water outlet is arranged at the bottom of the container, a rubber tube is inserted into the water outlet, a valve is arranged on the rubber tube, and the bottom of the rubber tube extends into the receiving bottle.
7. The simulation experiment device for researching the migration and transformation kinetics characteristics of the soil nutrient elements according to claim 1, wherein the container is made of PVC pipes, and a support is fixed at the bottom of the container.
8. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements as claimed in claim 1, wherein the water distribution port is in a mesh shape.
9. The simulation experiment device for researching the migration and transformation kinetic characteristics of the soil nutrient elements as claimed in claim 1, wherein a rubber piston is arranged at the soil sampling port.
10. The simulation experiment device for researching the migration and conversion kinetic characteristics of the soil nutrient elements according to claim 1, wherein a valve is arranged at the position of the leachate sampling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444312.4A CN111999468A (en) | 2019-05-27 | 2019-05-27 | Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444312.4A CN111999468A (en) | 2019-05-27 | 2019-05-27 | Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111999468A true CN111999468A (en) | 2020-11-27 |
Family
ID=73461833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910444312.4A Pending CN111999468A (en) | 2019-05-27 | 2019-05-27 | Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111999468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210154A (en) * | 2021-04-25 | 2021-08-06 | 三峡大学 | Ecological slope protection substrate accelerated leaching device and operation method |
| CN114002007A (en) * | 2021-11-22 | 2022-02-01 | 中南林业科技大学 | Sampling device and leaching device for nitrogen migration and conversion, sampling method and method for researching nitrogen migration and conversion |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215747A (en) * | 2014-08-15 | 2014-12-17 | 杭州师范大学 | Soil column leaching device |
| CN104568677A (en) * | 2014-12-25 | 2015-04-29 | 西南交通大学 | Leaching test device and method for indoor heavy metal pollutants |
| CN105445438A (en) * | 2014-08-25 | 2016-03-30 | 常州千帆环保科技有限公司 | An experiment apparatus simulating soil contaminant migration and soil remediation and an experimenting method |
| CN205404574U (en) * | 2016-03-15 | 2016-07-27 | 成都理工大学 | Experimental device for simulation package band of gas pollutant solute transfer |
| CN105910961A (en) * | 2016-04-20 | 2016-08-31 | 湖南科技大学 | Apparatus and method for simulating heavy metal migration and transformation in soil-water interface |
| CN208334139U (en) * | 2018-06-21 | 2019-01-04 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | A kind of soil-column test device of simulation solute migration conversion |
| CN109387616A (en) * | 2018-10-15 | 2019-02-26 | 桂林理工大学 | A kind of multiple index evaluation method of heavy-metal contaminated soil passivation repairing effect |
-
2019
- 2019-05-27 CN CN201910444312.4A patent/CN111999468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215747A (en) * | 2014-08-15 | 2014-12-17 | 杭州师范大学 | Soil column leaching device |
| CN105445438A (en) * | 2014-08-25 | 2016-03-30 | 常州千帆环保科技有限公司 | An experiment apparatus simulating soil contaminant migration and soil remediation and an experimenting method |
| CN104568677A (en) * | 2014-12-25 | 2015-04-29 | 西南交通大学 | Leaching test device and method for indoor heavy metal pollutants |
| CN205404574U (en) * | 2016-03-15 | 2016-07-27 | 成都理工大学 | Experimental device for simulation package band of gas pollutant solute transfer |
| CN105910961A (en) * | 2016-04-20 | 2016-08-31 | 湖南科技大学 | Apparatus and method for simulating heavy metal migration and transformation in soil-water interface |
| CN208334139U (en) * | 2018-06-21 | 2019-01-04 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | A kind of soil-column test device of simulation solute migration conversion |
| CN109387616A (en) * | 2018-10-15 | 2019-02-26 | 桂林理工大学 | A kind of multiple index evaluation method of heavy-metal contaminated soil passivation repairing effect |
Non-Patent Citations (1)
| Title |
|---|
| 余存祖等: "土壤剖面营养元素运移的模拟研究及其装置", 《水土保持研究》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210154A (en) * | 2021-04-25 | 2021-08-06 | 三峡大学 | Ecological slope protection substrate accelerated leaching device and operation method |
| CN114002007A (en) * | 2021-11-22 | 2022-02-01 | 中南林业科技大学 | Sampling device and leaching device for nitrogen migration and conversion, sampling method and method for researching nitrogen migration and conversion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204116337U (en) | A kind of native fish device of contaminant transportation simulation | |
| CN110681685A (en) | Polluted site soil-underground water integrated simulation restoration device and method | |
| CN101556269B (en) | Trough for simulating groundwater pollution | |
| CN102980988B (en) | Slope Cropland with Purple Soil contaminant transportation conversion process analogue means | |
| CN106600035A (en) | Pollutant migration simulation-based water source site water quality safety early warning method | |
| CN109270244A (en) | Solute transfer analogue observation device in soil under a kind of rainfall | |
| CN209264719U (en) | It is a kind of can stratified pumping, gas, soil sample and the controllable leaching device of water distribution | |
| CN109668809A (en) | Valley plain band accumulation of soluble substances and Migration Simulation experimental provision and method | |
| CN105334309A (en) | Soil heavy metal migration and transformation simulating device | |
| CN205103245U (en) | Soil heavy metal migration conversion analogue means | |
| CN103630659A (en) | Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water | |
| CN105466815A (en) | Underground water contaminant movement simulation device on transfluence condition and using method | |
| CN104807961A (en) | Indoor simulating device provided with well pipe and used for artificial shoreline pollutant migration and transformation | |
| CN102608291A (en) | Simulated large-field soil and solute transporting system | |
| CN103364473A (en) | Device and method for study on release of heavy metals and/or phosphate in sediments | |
| CN212964501U (en) | Simulation device for migration process of pollutants in soil-underground water system | |
| CN209841614U (en) | Experiment device for simulating accumulation and migration of solute in original zone of valley | |
| CN107817206A (en) | It is a kind of can water distribution uniformity simulation water petrofacies interaction experimental provision | |
| CN111999468A (en) | Simulation experiment device for researching migration and transformation kinetic characteristics of soil nutrient elements | |
| CN210995782U (en) | Contaminated site soil-groundwater integral type simulation prosthetic devices | |
| CN112433035A (en) | Simulation device and method for soil collection and leaching solution collection of pollutants in soil column leaching | |
| CN105427730A (en) | Karst area window transfluence system simulation device and simulation method | |
| CN106781962A (en) | A kind of heterogeneous isotropic aquifer seepage action of ground water rule simulation test device | |
| CN205352897U (en) | Analogue means that groundwater pollutant moved under condition that flows more | |
| CN113866384A (en) | Detachable soil column soil water and solute transport testing device and method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |