CN204945134U - A kind of earth pillar for the simulation of cadmium risk of leakage - Google Patents

A kind of earth pillar for the simulation of cadmium risk of leakage Download PDF

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Publication number
CN204945134U
CN204945134U CN201520690573.1U CN201520690573U CN204945134U CN 204945134 U CN204945134 U CN 204945134U CN 201520690573 U CN201520690573 U CN 201520690573U CN 204945134 U CN204945134 U CN 204945134U
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China
Prior art keywords
soil
pvc pipe
earth pillar
layer
cadmium
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Expired - Fee Related
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CN201520690573.1U
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Chinese (zh)
Inventor
史静
夏运生
陈喜
王海波
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Yunnan Agricultural University
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Yunnan Agricultural University
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of earth pillar for the simulation of cadmium risk of leakage, its main body is cylindrical PVC straight tube, inside pipe wall is coated with the rete for preventing soil viscous, sealed by the sealant of permeable watertight at the bottom of pipe, sealing layer offers through hole, and this through hole connects the drainpipe of a downward draining; Quartz sand layer is placed with at the bottom of described pvc pipe, the upper surface of described quartz sand layer is provided with isolation gauze, in pvc pipe more than described isolation gauze, high uniformity along pvc pipe is interval with five layers of nylon wire, pvc pipe more than described isolation gauze is divided into five stacked accommodating layers of soil, for loading for examination soil according to the actual soil layering situation in field is corresponding respectively, and the pvc pipe wall of the bottom sides of the accommodating layer of each soil all offers water delivering orifice.The utility model can the cadmium seepage situation of original state cadmium pollution soil of simulated soil Soil layer.

Description

A kind of earth pillar for the simulation of cadmium risk of leakage
Technical field
The utility model relates to remediation contaminated soil and monitoring technique field, particularly relates to a kind of earth pillar for the simulation of cadmium risk of leakage.
Background technology
Cadmium is human body non-essential element, and often exist with compound state at occurring in nature, general content is very low, under home state, can not affect health.Cadmium and zinc are congeners, normal and zinc, plumbous symbiosis at occurring in nature cadmium.After environment is subject to cadmium pollution, cadmium can enrichment in vivo, enters human body cause slow poisoning by food chain.After cadmium is absorbed by the body, forms cadmium sulfoprotein in vivo, optionally accumulate in liver, kidney.Wherein, kidney Absorbable rod enters the cadmium of in body nearly 1/3, is cadmium poisoning " target organ ".Other internal organs such as spleen, pancreas, thyroid gland and hair etc. also have a certain amount of accumulation.Due to cadmium damage renal tubule, there is glycosuria, albuminuria and acidaminuria in patient.Special tool makes the metabolism of bone be obstructed, and causes the series of symptoms such as osteoporosis, atrophy, distortion.
Cadmium Pollution in Soils can cause crops cadmium content to exceed standard, and can cause cadmium poisoning after the mankind are edible.Therefore, the research for the cadmium pollution of soil is a long-standing issues.Wherein, the risk simulation for Cadmium in Soil seepage is a kind of very important method.
Traditional cadmium risk of leakage simulation adopts potted plant or tank to simulate, and is about to treat that the soil of analog detection puts into basin alms bowl or tank, connects at the sidepiece of basin alms bowl or tank or bottom the water that seepage flow goes out, thus according to the cadmium risk of leakage of cadmium content simulated soil in effusion.But this method on the one hand can not the seepage situation of simulated soil Soil layer, does not know the concrete cadmium seepage situation of soil profile layer on the other hand.
Therefore, be necessary to provide a kind of Soil layer both can simulating original-state soil, the water that can ooze out according to each edaphic water delivering orifice again learns which layer soil water outlet of the end is in the majority, thus can know the novel analogue means of different soils level cadmium leakage more accurately.
Utility model content
The purpose of this utility model is achieved through the following technical solutions:
A kind of earth pillar for the simulation of cadmium risk of leakage, it is characterized in that: its main body is cylindrical PVC straight tube, inside pipe wall is coated with the rete for preventing soil viscous, sealed by the sealant of permeable watertight at the bottom of pipe, sealing layer offers through hole, and this through hole connects the drainpipe of a downward draining; Quartz sand layer is placed with at the bottom of described pvc pipe, the upper surface of described quartz sand layer is provided with isolation gauze, in pvc pipe more than described isolation gauze, high uniformity along pvc pipe is interval with five layers of nylon wire, pvc pipe more than described isolation gauze is divided into five stacked accommodating layers of soil, for loading for examination soil according to the actual soil layering situation in field is corresponding respectively, and the pvc pipe wall of the bottom sides of the accommodating layer of each soil all offers water delivering orifice.
Preferably, described sealant is one or more layers cotton layer.
Preferably, the thickness of described quartz sand layer is 2cm.
Preferably, described isolation gauze and described five layers of nylon wire a bit fixing in the mode that can rotate up and down with the tube wall of described pvc pipe all by its edge, remainder can folding.
Preferably, the height of described five accommodating layers of soil is 20cm.
Preferably, the diameter of described drainpipe is 0.5cm, and its end is fixed in described through hole by rubber stopper
Preferably, the diameter of described pvc pipe is between 10-15cm.
Preferably, described rete is petrolatum layer.
Preferably, the order number of described isolation gauze is 300 orders.
Preferably, between the described nylon wire of the superiors and the top of described pvc pipe, there is distance, form water sink.
Compared with prior art, the utility model possesses following advantage:
The utility model can the original state cadmium pollution soil cadmium seepage situation of simulated soil Soil layer, learn which layer soil water outlet of the end is in the majority according to the water that each edaphic water delivering orifice oozes out, thus the cadmium leakage of different soils Soil layer can be known more accurately.
The utility model adopts pvc pipe to replace basin alms bowl, not only can simulate the Soil layer of original-state soil, the water that can ooze out according to each edaphic water delivering orifice on the other hand learns which layer soil water outlet of the end is in the majority, thus can know different soils level cadmium leakage more accurately.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the present embodiment provides a kind of earth pillar for the simulation of cadmium risk of leakage, and its main body is one section of straight pvc pipe 10, and cylindrical, its diameter can be selected between 10-15cm.
The inwall even spread of described pvc pipe 10 has the petrolatum layer for preventing soil viscous, is fixed at the bottom of earth pillar by nylon rope by the cotton of good air permeability, i.e. the bottom of pipe, forms sealant 11 and seals post mouth; And on this cotton layer, offer the aperture 12 that diameter is 0.5cm, with rubber stopper, drainpipe 13 is fixed in aperture, to collect the effusion flowed out in pvc pipe 10.
Bottom in described pvc pipe 10 is placed with the quartz sand layer 20 that thickness is 2cm, the upper surface of described quartz sand layer 20 is provided with 300 object isolation gauzes 30, in the pvc pipe 10 of isolation gauze more than 30, high uniformity along pvc pipe 10 is interval with five layers of nylon wire 40, the pvc pipe 10 of described isolation gauze more than 30 is divided into five stacked accommodating layers 50 of soil, the height of the accommodating layer 50 of each soil is 20cm, for loading for examination soil according to the actual soil layering situation in field is corresponding respectively, and the pvc pipe wall of the bottom sides of the accommodating layer 50 of each soil all offers water delivering orifice 51, make the water that each soil horizon is discharged downwards, all some flows out through this water delivering orifice, be convenient to the water outlet according to different water delivering orifices, analyze the cadmium content state in each soil horizon.
For the ease of opening described isolation gauze 30 and every layer of nylon wire 40, place quartz sand layer and soil horizon, described isolation gauze 30 and described five layers of nylon wire 40 a bit fixing in the mode that can rotate up and down with the tube wall of described pvc pipe 10 all by its edge, remainder can folding, specifically can select the structure of similar hinge.
Preferably, between the described nylon wire 40 of the superiors and the top of described pvc pipe 10, there is distance, form water sink.When realistic simulation is measured, poured water in pipe by this water sink, irrigation quantity size is as the criterion to keep field capacity, and pour water about 275ml at every turn, weigh the Porcelain Jar weight of the collection effusion of earth pillar and correspondence thereof after pouring water, pour water till reaching this weight later at every turn.Pour water once weekly after dress post, and collect effusion in order to chemical assay.Cultivate and continue 1 month, cultivate after terminating, gather each layer soil sample respectively, air-dry, sieve in order to chemical assay.
Described quartz sand layer 20 also can be substituted by other sandy gravel stratums.
The above; it is only preferred embodiment of the present utility model; it is not restriction the utility model being made to other form; any one of skill in the art of being familiar with may utilize technology contents described above to be changed or be modified as the Equivalent embodiments of equal change; in every case be do not depart from the utility model plan content; according to any simple modification, equivalent variations and remodeling that the utility model essence is done above embodiment, still belong within protection domain of the present utility model.

Claims (10)

1. the earth pillar for the simulation of cadmium risk of leakage, it is characterized in that: its main body is cylindrical PVC straight tube, inside pipe wall is coated with the rete for preventing soil viscous, sealed by the sealant of permeable watertight at the bottom of pipe, sealing layer offers through hole, and this through hole connects the drainpipe of a downward draining; Quartz sand layer is placed with at the bottom of described pvc pipe, the upper surface of described quartz sand layer is provided with isolation gauze, in pvc pipe more than described isolation gauze, high uniformity along pvc pipe is interval with five layers of nylon wire, pvc pipe more than described isolation gauze is divided into five stacked accommodating layers of soil, for loading for examination soil according to the actual soil layering situation in field is corresponding respectively, and the pvc pipe wall of the bottom sides of the accommodating layer of each soil all offers water delivering orifice.
2. earth pillar according to claim 1, is characterized in that: described sealant is one or more layers cotton layer.
3. earth pillar according to claim 1, is characterized in that: the thickness of described quartz sand layer is 2cm.
4. earth pillar according to claim 1, is characterized in that: described isolation gauze and described five layers of nylon wire a bit fixing in the mode that can rotate up and down with the tube wall of described pvc pipe all by its edge, remainder can folding.
5. earth pillar according to claim 1, is characterized in that: the height of described five accommodating layers of soil is 20cm.
6. earth pillar according to claim 1, is characterized in that: the diameter of described drainpipe is 0.5cm, and its end is fixed in described through hole by rubber stopper.
7. earth pillar according to claim 1, is characterized in that: the diameter of described pvc pipe is between 10-15cm.
8. earth pillar according to claim 1, is characterized in that: described rete is petrolatum layer.
9. earth pillar according to claim 1, is characterized in that: the order number of described isolation gauze is 300 orders.
10. earth pillar according to claim 1, is characterized in that: have distance between the described nylon wire of the superiors and the top of described pvc pipe, forms water sink.
CN201520690573.1U 2015-09-08 2015-09-08 A kind of earth pillar for the simulation of cadmium risk of leakage Expired - Fee Related CN204945134U (en)

Priority Applications (1)

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CN201520690573.1U CN204945134U (en) 2015-09-08 2015-09-08 A kind of earth pillar for the simulation of cadmium risk of leakage

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Application Number Priority Date Filing Date Title
CN201520690573.1U CN204945134U (en) 2015-09-08 2015-09-08 A kind of earth pillar for the simulation of cadmium risk of leakage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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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: 20160106

Termination date: 20160908