CN201749072U - Leaching device for transfer and conversion of pollutants in soil - Google Patents

Leaching device for transfer and conversion of pollutants in soil Download PDF

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Publication number
CN201749072U
CN201749072U CN2010202607228U CN201020260722U CN201749072U CN 201749072 U CN201749072 U CN 201749072U CN 2010202607228 U CN2010202607228 U CN 2010202607228U CN 201020260722 U CN201020260722 U CN 201020260722U CN 201749072 U CN201749072 U CN 201749072U
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CN
China
Prior art keywords
leaching
percolate
soil
silicone tube
leaching case
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CN2010202607228U
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Chinese (zh)
Inventor
李玉双
陈红亮
杨继松
宋雪英
侯永侠
胡晓钧
孙铁珩
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沈阳大学
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Priority to CN2010202607228U priority Critical patent/CN201749072U/en
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Publication of CN201749072U publication Critical patent/CN201749072U/en

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Abstract

The utility model relates to a leaching device for transfer and conversion of pollutants in soil. The leaching device is characterized in that a leaching box is installed on a base bracket; a leaching box cover is arranged at the upper part of the leaching box; a ventilation hole and a liquid inlet are formed on the leaching box cover; a plate type nozzle is installed at the lower part of the liquid inlet; one end of a silicone tube stretches into a liquid storage bottle, and the other end of the silicone tube is connected with the liquid inlet formed on the leaching box cover through a peristaltic pump; a plurality of sampling ports are formed on a box body of the leaching box in the horizontal direction and in the vertical direction, and soil solution samplers are inserted in the sampling ports; a leachate filter is installed at the bottom of the leaching box; and a polyvinyl chloride pipe is connected with the bottom end of the leachate filter and is connected with a leachate receiving bottle through the silicone tube. The leaching device can sample and detect leaching liquid in the horizontal direction and in the vertical direction in real time, and is characterized by small workload and good reproducibility, and is simply and conveniently operated and accurately controlled.

Description

The leaching device that the pollutant in soil migration transforms

Technical field

The utility model relates to the device of a kind of soil and groundwater contamination process study, moves the leaching device of conversion process especially for the research pollutant in soil.

Background technology

Soil is material base and the environmental baseline that the mankind depend on for existence and development.Soil pollution not only causes the food-safety problem of agricultural product, can also pass through the eluviation polluted underground water, and then jeopardizes human life and health by food chain.

In recent years, along with rapid economic development, problem of environmental pollution is serious day by day, and the burst Pollution incident happens occasionally.As: 20 tons of arsenic take place and are released into the river incident in Jin Xiu county, Liujiang water system tributary, Zhujiang River basin in 2002, the Song Hua River contamination accident that two benzene factories of in November, 2005 PetroChina Company Limited.'s Jilin Petrochemical company blast and cause; Fengxiang, the Shaanxi lead contamination that took place in 2009 and Linyi, Shandong arsenic contamination incident or the like.When sudden soil pollution accident takes place, how to monitor the migration conversion process of pollutant within a short period of time in real time, assessing its coverage and effect, for the decision-making of meeting an urgent need fast provides theoretical and the data support, is the science difficult problem that present environmental pollution control and safety guarantee face.

Field microcell experiment and the test of laboratory post leaching are mainly adopted in the research of moving in soil and transforming about allogenic material at present.Field microcell experiment mainly is made of field microcell, underground leakage liquid adapting pipe, effusion sampler.During test, earlier allogenic material is imposed in the microbending soil of field, water then, get effusion and carry out assay determination.But this methods engineering amount is big; Be difficult to accurately control test condition, the test findings poor repeatability.In addition, the field micro-plot experiment is mainly used in leaching, migration and the conversion processes of nutrient in soil such as research N, P, and adopt tracer method research for toxic pollutants such as heavy metal and agricultural chemicals more, this method tracer agent costliness, carry out the modeling effort of trace mostly, be difficult to modeling effort high concentration soil pollution incident.In the laboratory, carry out the test of post leaching, reduced workload to a great extent; And can accurately control test condition, the repeatability of experimental result is also better relatively.But present existing test unit all adopts the cylinder design, only is provided with the thief hatch of vertical direction, can't monitor pollutant migration, conversion situation in the horizontal direction.

Summary of the invention

The purpose of this utility model provides the leaching device that a kind of pollutant in soil migration transforms, this leaching device can be realized the real-time sampling of horizontal direction and vertical direction leachate is detected, and the pollutant of modeling effort simultaneously along continuous straight runs and vertical direction in soil are carried out leaching, migration and conversion process; Have easy and simple to handle, control accurately, the characteristics of little, the favorable reproducibility of workload.

The leaching device that a kind of pollutant in soil migration that the utility model proposes transforms comprises that feed liquor device, board-like shower nozzle, leaching case, leaching case lid, percolate filtrator, percolate accept bottle, base support and soil liquid sampling thief.The leaching case is installed on the base support, and there is a leaching case lid top of leaching case, and the leaching case lid is provided with air hole, inlet, and the below of inlet is equipped with board-like shower nozzle.The feed liquor device is made up of liquid storage bottle, peristaltic pump, silicone tube, and silicone tube one end stretches in the liquid storage bottle, and the other end is connected on the input end of peristaltic pump, and the wriggling delivery side of pump is connected with inlet on the leaching case lid by another silicone tube.The casing of leaching case is made by organic glass, is provided with several thief hatchs in the horizontal direction and the vertical direction of casing, and soil liquid sampling thief is inserted in the thief hatch.The percolate filtrator designs for V-shape, is installed in the bottom of leaching case.This percolate filter bottom end connects a polyvinyl chloride pipe, is equipped with operation valve on this polyvinyl chloride pipe, and the outer end of this polyvinyl chloride pipe is the percolate outlet, and this percolate outlet is accepted bottle by silicone tube and percolate and is connected.

Be respectively equipped with thief hatch on the utility model leaching box body horizontal direction and the vertical direction, built-in soil liquid sampling thief, can realize that real-time layering gathers the soil liquid, soil do not had disturbance, can study simultaneously pollutant in the horizontal direction with the leaching migration and the transformation rule of vertical direction.The utility model carries out at lab simulation because of it, pollution course and contaminant stream are to may command, therefore can carry out sudden high concentration soil pollution event simulation research, can simulate different temperatures, different time, different inorganic, organic contaminant pollution situation and migration under eluviation and transformation rule, thus have easy and simple to handle, control is accurate, workload is little, the characteristics of favorable reproducibility.

Description of drawings:

Fig. 1 is a structural representation of the present invention.

The label of part is among the figure: 1 is liquid storage bottle, and 2 is silicone tube, and 3 is peristaltic pump, 4 is inlet, and 5 is air hole, and 6 are the leaching case lid, 7 is board-like shower nozzle, 8 is thief hatch, and 9 for the leaching case, and 10 are fixing screw socket, 11 is that V-type percolate filtrator, 12 is that polyvinyl chloride pipe, 13 is operation valve, 14 are the percolate outlet, and 15 accept bottle for percolate, and 16 is base support.

Embodiment

The leaching device that the migration of a kind of pollutant in soil transforms comprises that feed liquor device, board-like shower nozzle 7, leaching case 9, leaching case lid 6, percolate filtrator 11, percolate accept bottle 15, base support 16 and soil liquid sampling thief.Leaching case 9 is installed on the base support 16, there is a leaching case lid 6 top of leaching case 9, it is that 2.5 centimetres air hole 5, diameter is 3 centimetres of inlets 4 that leaching case lid 6 is provided with diameter, the below of inlet 4 is equipped with board-like shower nozzle 7, evenly is thick with diameter on the board-like shower nozzle 7 and is 2 millimeters nozzle.The feed liquor device is made up of liquid storage bottle 1, peristaltic pump 3, silicone tube 2.Silicone tube 2 one ends stretch in the liquid storage bottle 1, and the other end is connected on the input end of peristaltic pump 3, and the output terminal of peristaltic pump 3 is connected with inlet 4 on the leaching case lid 6 by another silicone tube 2.The casing of leaching case 9 is made by organic glass, and leaching case 9 length are 120 centimetres in the present embodiment, and width is 25 centimetres, highly is 100 centimetres; Horizontal direction and vertical direction at the casing of leaching case 9 equidistantly are provided with thief hatch 8 by 25 centimetres, 20 centimetres respectively, and present embodiment is established 20 thief hatchs altogether.To pack in the leaching case 9 by the layering of original state order for examination soil, highly be 90 centimetres.Soil liquid sampling thief is inserted in the thief hatch.Percolate filtrator 11 designs for V-shape, cover one deck 60 order nylon screens in percolate filtrator 11 bottoms, on nylon screen, dose silica sand as filtering material, then percolate filtrator 11 is installed in the bottom of leaching case 9, be fixed on the base support 16 by fixing screw socket 10.Percolate filtrator 11 bottoms connect a Polyvinylchloride (PVC) pipe 12, be equipped with operation valve 13 on this polyvinyl chloride pipe 12, the outer end of this polyvinyl chloride pipe 12 is percolate outlet 14, and this percolate outlet 14 is accepted bottle 15 by silicone tube 2 and percolate and is connected, and is used to accept soil filtration liquid.

In the utility model, add heavy metal contaminants and analyze pure CdNO by diagonal line intersection point place at soil surface 34H 2The O500 gram covers the leaching case lid, adds distilled water in liquid storage bottle, opens peristaltic pump, and it is 60 ml/min that flow velocity is set, and carries out the leaching migration experiment of cadmium in soil under 25 ℃ of conditions.Respectively 1 hour, 4 hours, 12 hours, 48 hours by the soil liquid sampling thief earth solution example that fetches earth, change leachate simultaneously and accept bottle.After the off-test, pedotheque is taked in layering, and 120 mesh sieves are crossed in the air-dry back of room temperature, and are standby.Solution example filter paper filtering at a slow speed, pedotheque is through HCL-HNO 3-HF-HCLO 4After clearing up,, find out its leaching migration rule in soil by data analysis with the Cd content in the atomic absorption spectrophotometry mensuration solution.

Claims (1)

1. a pollutant in soil is moved the leaching device that transforms, comprise that feed liquor device, board-like shower nozzle, leaching case, leaching case lid, percolate filtrator, percolate accept bottle, base support and soil liquid sampling thief, it is characterized in that: the leaching case is installed on the base support, there is a leaching case lid top of leaching case, the leaching case lid is provided with air hole, inlet, and the below of inlet is equipped with board-like shower nozzle; The feed liquor device is made up of liquid storage bottle, peristaltic pump, silicone tube, and silicone tube one end stretches in the liquid storage bottle, and the other end is connected on the input end of peristaltic pump, and the wriggling delivery side of pump is connected with inlet on the leaching case lid by another silicone tube; The casing of leaching case is made by organic glass, is provided with several thief hatchs in the horizontal direction and the vertical direction of casing, and soil liquid sampling thief is inserted in the thief hatch; The percolate filtrator designs for V-shape, is installed in the bottom of leaching case; This percolate filter bottom end connects a polyvinyl chloride pipe, is equipped with operation valve on this polyvinyl chloride pipe, and the outer end of this polyvinyl chloride pipe is the percolate outlet, and this percolate outlet is accepted bottle by silicone tube and percolate and is connected.
CN2010202607228U 2010-07-16 2010-07-16 Leaching device for transfer and conversion of pollutants in soil CN201749072U (en)

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Application Number Priority Date Filing Date Title
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102411043A (en) * 2011-12-02 2012-04-11 中国石油大学(北京) Leaching device used in vertical transfer of pollutants in soil
CN102608294A (en) * 2012-03-29 2012-07-25 上海化工研究院 Temperature difference transpiration type soil composition leaching testing device
CN102707035A (en) * 2012-06-28 2012-10-03 长安大学 Fully-automatic earth pillar leaching experiment device
CN102998230A (en) * 2012-11-30 2013-03-27 中国地质大学(武汉) Pollution halo layered observation device and method for simulating pollutant contaminated soil
CN103207212A (en) * 2013-03-14 2013-07-17 东南大学 Device and method for simulation of pollutant vertical isolation barrier
CN103760319A (en) * 2014-01-23 2014-04-30 东北农业大学 Reaction device for simulating migration and transformation of soil organic pollutant
CN104459085A (en) * 2014-12-02 2015-03-25 桂林理工大学 Indoor multistage simulated leaching test method
CN104588390A (en) * 2014-12-01 2015-05-06 同济大学 Method for performing dechlorination on fly ash by utilizing residual sludge
CN104655824A (en) * 2015-03-10 2015-05-27 湖南农业大学 Device for measuring transfer flux of pollutants in soil
CN105510553A (en) * 2015-12-22 2016-04-20 江西理工大学 Testing device and method for researching migration and transformation rule of nitrogen in ion-absorbed rare earth mine
CN105911221A (en) * 2016-04-14 2016-08-31 河海大学 Heavy metal ion curing product long-term stability test device and test method
CN106483269A (en) * 2016-09-21 2017-03-08 陕西科技大学 A kind of Study On Lead/cadmium infiltrates, migrates and returns the device and method becoming in loess
CN106482986A (en) * 2016-11-16 2017-03-08 江苏智石科技有限公司 A kind of soil liquid extraction element based on filtration
CN106644835A (en) * 2016-12-08 2017-05-10 同济大学 Determining device and method of chloride ion vertical diffusion coefficient under different hydraulic gradients
CN106680460A (en) * 2016-12-07 2017-05-17 中国矿业大学 Pollutant transport model device under saturated-unsaturated soil medium conditions
CN107101914A (en) * 2017-06-26 2017-08-29 中国环境科学研究院 A kind of soil pollutant Vertical Migration measuring system
CN107389896A (en) * 2017-06-12 2017-11-24 河海大学 Top layer bed material pollutant adsorption/desorption characteristic measuring device and its application method
CN109297871A (en) * 2018-11-27 2019-02-01 扬州大学 A kind of device and its analogy method for simulating pesticide Transport And Transformation process in paddy water and soil system

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102411043A (en) * 2011-12-02 2012-04-11 中国石油大学(北京) Leaching device used in vertical transfer of pollutants in soil
CN102608294A (en) * 2012-03-29 2012-07-25 上海化工研究院 Temperature difference transpiration type soil composition leaching testing device
CN102608294B (en) * 2012-03-29 2015-01-28 上海化工研究院 Temperature difference transpiration type soil composition leaching testing device
CN102707035B (en) * 2012-06-28 2014-07-16 长安大学 Fully-automatic earth pillar leaching experiment device
CN102707035A (en) * 2012-06-28 2012-10-03 长安大学 Fully-automatic earth pillar leaching experiment device
CN102998230A (en) * 2012-11-30 2013-03-27 中国地质大学(武汉) Pollution halo layered observation device and method for simulating pollutant contaminated soil
CN102998230B (en) * 2012-11-30 2014-12-24 中国地质大学(武汉) Pollution halo layered observation device and method for simulating pollutant contaminated soil
CN103207212A (en) * 2013-03-14 2013-07-17 东南大学 Device and method for simulation of pollutant vertical isolation barrier
CN103760319A (en) * 2014-01-23 2014-04-30 东北农业大学 Reaction device for simulating migration and transformation of soil organic pollutant
CN103760319B (en) * 2014-01-23 2015-09-30 东北农业大学 A kind of reaction unit of simulated soil organic pollutants
CN104588390A (en) * 2014-12-01 2015-05-06 同济大学 Method for performing dechlorination on fly ash by utilizing residual sludge
CN104459085A (en) * 2014-12-02 2015-03-25 桂林理工大学 Indoor multistage simulated leaching test method
CN104655824A (en) * 2015-03-10 2015-05-27 湖南农业大学 Device for measuring transfer flux of pollutants in soil
CN105510553A (en) * 2015-12-22 2016-04-20 江西理工大学 Testing device and method for researching migration and transformation rule of nitrogen in ion-absorbed rare earth mine
CN105911221A (en) * 2016-04-14 2016-08-31 河海大学 Heavy metal ion curing product long-term stability test device and test method
CN106483269A (en) * 2016-09-21 2017-03-08 陕西科技大学 A kind of Study On Lead/cadmium infiltrates, migrates and returns the device and method becoming in loess
CN106482986A (en) * 2016-11-16 2017-03-08 江苏智石科技有限公司 A kind of soil liquid extraction element based on filtration
CN106680460A (en) * 2016-12-07 2017-05-17 中国矿业大学 Pollutant transport model device under saturated-unsaturated soil medium conditions
CN106644835B (en) * 2016-12-08 2019-10-18 同济大学 The measurement device and method of chloride ion vertical proliferation coefficient under different hydraulic gradients
CN106644835A (en) * 2016-12-08 2017-05-10 同济大学 Determining device and method of chloride ion vertical diffusion coefficient under different hydraulic gradients
CN107389896A (en) * 2017-06-12 2017-11-24 河海大学 Top layer bed material pollutant adsorption/desorption characteristic measuring device and its application method
CN107389896B (en) * 2017-06-12 2018-04-03 河海大学 Top layer bed material pollutant adsorption/desorption characteristic measuring device and its application method
CN107101914A (en) * 2017-06-26 2017-08-29 中国环境科学研究院 A kind of soil pollutant Vertical Migration measuring system
CN109297871A (en) * 2018-11-27 2019-02-01 扬州大学 A kind of device and its analogy method for simulating pesticide Transport And Transformation process in paddy water and soil system
CN109297871B (en) * 2018-11-27 2020-12-11 扬州大学 Device and method for simulating pesticide migration and transformation process in paddy field water and soil system

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Granted publication date: 20110216

Termination date: 20110716