CN106198923B - It is a kind of to original position soil feeding13CO2System and method for - Google Patents
It is a kind of to original position soil feeding13CO2System and method for Download PDFInfo
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- CN106198923B CN106198923B CN201610461638.4A CN201610461638A CN106198923B CN 106198923 B CN106198923 B CN 106198923B CN 201610461638 A CN201610461638 A CN 201610461638A CN 106198923 B CN106198923 B CN 106198923B
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- G—PHYSICS
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- 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
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Abstract
The present invention relates to soil environment research and detection field, specifically discloses a kind of to original position soil feeding13CO2System and method.The feeding systems include：For providing the power set of air-flow, for removing CO2Filter, device for feeding and CO2Detection means；It is sequentially connected between said apparatus by sealing pipeline；The main body of the device for feeding is the container of bottom opening, and the side wall of container is respectively equipped with air injection pipe and blast pipe with reservoir.Original position soil can be carried out using system of the present invention in the case where reducing external interference to greatest extent13CO2Feeding, be the improvement and innovation to existing method, for study Atmospheric CO2Whereabouts problem, there is provided a kind of feasible, accurate, easy operating method.
Description
Technical field
The present invention relates to soil environment research and detection field, specifically, is related to a kind of to original position soil feeding13CO2
System and method.
Background technology
Atmospheric CO2Whereabouts problem it is controversial always.Increasing research shows Atmospheric CO in recent years2It can enter
In soil, by the physics chemical action and microbial action of soil, absorb and fix, the process uses stable isotope at present more
Method be determined, but existing research more using indoors artificial simulation method carry out13CO2Feeding experiment, in-situ soil
The feeding experiment of earth is because the limitation of device and method, rarely has research.
Therefore, in order to deeper into, more accurately study CO2The process of whereabouts, it is a kind of to original position soil feeding to need research and development badly13CO2System and method.
The content of the invention
In order to solve problems of the prior art, it is an object of the invention to provide one kind to original position soil feeding13CO2
System and method for, to carry out research Atmospheric CO by this method2Whereabouts problem.
In order to realize the object of the invention, technical scheme is as follows：
In a first aspect, the invention provides one kind to original position soil feeding13CO2Feeding systems, the feeding systems bag
Include：For providing the power set of air-flow, for removing CO2Filter, device for feeding and CO2Detection means；Said apparatus
Between be sequentially connected by sealing pipeline；The main body of the device for feeding is the container of bottom opening, and the side wall of container is set respectively
There are the air injection pipe and blast pipe with reservoir.
Preferably, it is sequentially connected between described device by dismountable rubber tube.
Further, the air injection pipe is provided with the valve for being used for controlling air-flow to pass in and out with blast pipe.
Further, solid Ca (OH) is housed in the filter2, for after power set are started, being removed into
CO in the air of device for feeding2。
Further, the device for feeding is provided with mobilizable baffle plate at nearly bottom opening, for closing feeding service container
In gas, feeding service container is externally provided with the knob for controlling baffle plate activity.The baffle plate is connected with the knob by connecting rod,
The cylinder can be connected or completely cut off with outside air by the baffle plate under knob rotation.The baffle edge uses silica gel
Smear, to strengthen sealing.
The device for feeding act as sealing containing certain density13CO2Gas, realize and original position soil fed
Food.Therefore, it can be that rigid mount is alternatively flexible apparatus, can be transparent also opaque.
For the ease of operation, preferably described device for feeding is chosen as tubular, box-like, box to have figurate container
Shape container etc..
In the specific embodiment of the present invention, the invention provides a preferable device for feeding, its main body is
The lucite cylinder of bottom opening, internal diameter 22.5cm, external diameter 23cm, a height of 2.5m, away from the 20cm of cylinder lower end be provided with
The suitable circular baffle plate in glass infuser cross section, silica gel is scribbled at baffle edge；The air injection pipe is arranged on away from glass infuser bottom
At 30cm, the blast pipe is arranged on away from 10cm at the top of glass infuser.
It should be appreciated that the device for feeding that equal proportion is expanded or shunk on this basis falls within protection scope of the present invention.
Further, the power set are commercial air pump (such as purchased from Shanghai You Teng power Science and Technology Ltd.
Oilless air compressor), for whole system provide gas flowing power；The air pump is connected with the filter.
The filter includes drying tube, connects the rubber catheter of drying tube；Pass through rubber respectively between the drying tube
Glue conduit is connected, and is solid Ca (OH) in the drying tube2.Outside air is by filling solid Ca (OH)2The drying tube,
Filter CO therein2Gas；The drying tube quantity can increase and decrease according to practical operation situation.
The CO2Detection means is commercially available CO2Analyzer (carbon dioxide detector, the limited public affairs of Beijing Asia and Europe moral roc science and technology
Department), flow through in the device for feeding CO in gas for accurately determining2Concentration.
Second aspect, the invention provides utilize foregoing feeding systems to original position soil feeding13CO2Method, including such as
Lower step：
1) soil ring is driven underground vertically, then soil ring is connected and sealed with the bottom opening of device for feeding；With
Adhesive waterproof tape winds joint repeatedly, to prevent cylinder and gas leakage at soil ring interface；
2) by power set, filter, device for feeding and CO2Detection means is connected；
3) valve on air injection pipe and blast pipe is opened, the device that turns on the power (air pump), is passed air through after filtering device,
Into device for feeding；
4) CO is utilized2Detection means detection works as CO from the gas of device for feeding blast pipe outflow2Concentration is closed when being continuously zero
The valve of air injection pipe and blast pipe is closed, removes power set, filter and CO2Detection means；
5) syringe is connected to air injection pipe, opens the valve of air injection pipe, injected to device for feeding13CO2Gas, complete13CO2
Feeding.
Preferably, in order that filter being capable of the more complete CO crossed in air filtering2, in the step 3), control
Air processed is with 5~15Lmin-1Flow velocity from power set flow out.
Preferably, injection13CO2The concentration of gas>99.99%.
Preferably, make injection13CO2After gas, in device for feeding13CO2CO in the concentration and air of gas2Gas it is dense
Spend equal or close.
When device for feeding is provided with baffle plate, the step 2) is by power set, filter, device for feeding and CO2Detection
After device is connected, the knob on rotary barrel, baffle plate is placed in horizontal level, baffle plate space above is in complete sealed shape
State.
The beneficial effects of the present invention are：
The invention provides one kind to original position soil feeding13CO2System and method for, to be studied by this method
Atmospheric CO2Whereabouts problem.It can be carried out using system of the present invention in the case where reducing external interference to greatest extent in situ
Soil13CO2Feeding, be the improvement and innovation to existing method, for study Atmospheric CO2Whereabouts problem, there is provided Yi Zhongke
Row, accurate, easy operating method.
Brief description of the drawings
Fig. 1 is of the present invention to original position soil feeding13CO2System structural representation；
Fig. 2 is the structural representation of device for feeding of the present invention；
Wherein, 1, power set；2nd, filter；3rd, device for feeding；4、CO2Detection means；5th, air pump；6th, Ca is filled
(OH)2Drying tube；7th, lucite cylinder；8th, air injection pipe；9th, blast pipe；10th, the knob of controlling baffle plate switch；11st, baffle plate；
12、CO2Analyzer；13rd, blast pipe controlled valve；14th, air injection pipe controlled valve；15th, soil ring.
Embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with embodiment.It is it will be appreciated that following real
Providing merely to play the purpose of explanation for example is applied, is not used to limit the scope of the present invention.The skill of this area
Art personnel can carry out various modifications and replacement in the case of without departing substantially from spirit of the invention and spirit to the present invention.
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
Embodiment 1
With reference to shown in Fig. 1, one kind is used for soil feeding13CO2System, including power set 1, filter 2, feeding
Device 3 and CO2Detection means 4；Wherein,
The power set are commercial air pump 5；
The filter includes drying tube 6, connects the rubber catheter of drying tube；Pass through respectively between the drying tube 6
Rubber catheter is connected.It is solid Ca (OH) in the drying tube 62；
The device for feeding includes lucite cylinder 7, air injection pipe 8, blast pipe 9, blast pipe controlled valve 13, air injection pipe and opened
Closing valve 14, circular baffle plate 11, the knob 10 of controlling baffle plate switch；
The CO2Detection means is commercially available CO2Analyzer 12.
Described air pump 5 provides the power of gas flowing for whole system；The air pump 5 and the filter 2
It is connected.
In filter 2 of the present invention, outside air is by filling solid Ca (OH)2The drying tube 6, mistake
Filter CO therein2Gas；The quantity of drying tube 6 can increase and decrease according to practical operation situation.
In device for feeding 3 of the present invention, the cylinder 7 is lucite cylinder, end closure on the cylinder 7, under
End is opened wide, and the side wall of cylinder 7 sets injecting hole and venthole, injecting hole to be connected with the air injection pipe 8 respectively up and down, venthole
It is connected with the blast pipe 9, the air injection pipe 8 and the blast pipe 9 are respectively provided with the controlled valve 13,14.
The lucite cylinder, its specification are internal diameter 22.5cm, external diameter 23cm, high 2.5m, and the circular baffle plate lays position
It is set to away from the 20cm of cylinder lower end, the air injection pipe is arranged on away from the 30cm of bottom, and the blast pipe is arranged on away from top 10cm
Place.
The circular baffle plate 11 is connected with the knob 10 by connecting rod, and the circular baffle plate 11 is revolved in the knob 10
The cylinder can be connected or completely cut off with outside air under turning.
The edge of circular baffle plate 11 is smeared using silica gel, to strengthen sealing.
The CO2Detection means 4 is commercially available CO2Analyzer 12, flowed through for accurately determining in the device for feeding in gas
CO2Concentration.
The feeding method of embodiment 2
Using system described in embodiment 1 to soil feeding13CO2System feeding soil13CO2Method, comprise the following steps：
1) soil ring 15 is driven underground vertically, then soil ring 15 connects (Fig. 2) with device for feeding 3, uses marine glue
Band winds joint repeatedly, to prevent cylinder and gas leakage at soil ring interface；
2) by power set 1, filter 2, device for feeding 3 and CO2Detection means 4 is connected；Knob on rotary barrel
10, make circular baffle plate 11 horizontal, so that glass infuser baffle plate space above is in fully sealed position；
3) controlled valve 13,14 of air injection pipe 14 and blast pipe 13 is opened；Start air pump 5, control air with
10Lmin-1Flow velocity flowed out from air pump 5, through Ca (OH)2The air of drying tube 6 enters lucite cylinder 7 through air injection pipe 8
It is interior, and enter CO through blast pipe 92Detection means 4；
4) CO is observed2The reading change of analyzer 12, works as CO2Concentration closes air pump 5 when being continuously zero, and simultaneously closes off
Air injection pipe controlled valve 14 and blast pipe controlled valve 13 on glass infuser, remove power set 1, filter 2 and CO2Detection
Device 4, that is, complete CO in air2Removal；
5) 33mL is injected to its inside by the air injection pipe 14 of glass infuser lower end with syringe13CO2Gas (concentration>
99.99%)；Slowly butterfly 11 makes the Gas Stirring in cylinder uniform repeatedly, now in glass infuser13CO2Concentration and air
CO2Concentration is identical, is 378 μm of ol mol-1, complete13CO2Gas feeding operates.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (2)
- It is 1. a kind of to original position soil feeding13CO2Method, it is characterised in that comprise the following steps：1）Soil ring is driven underground vertically, then soil ring is connected and sealed with the bottom opening of device for feeding；The main body of the device for feeding is the cylinder of bottom opening, the side wall of cylinder be respectively equipped with the air injection pipe that connect with cylinder and Blast pipe；The air injection pipe is provided with the valve for being used for controlling air-flow to pass in and out with blast pipe；The device for feeding is in nearly bottom opening Place is provided with mobilizable baffle plate；Silica gel is scribbled at the baffle edge；2）By power set, filter, device for feeding and CO2Detection means is sequentially connected by dismountable rubber tube, rotation Knob on cylinder, baffle plate is placed in horizontal level, baffle plate space above is in complete air-tight state；Contain Ca (OH) in the filter2；3）The valve on air injection pipe and blast pipe is opened, turn on the power device, and control air is with 5 ~ 15 L min-1Flow velocity it is driven Power apparatus flows out, after passing air through filter device, into device for feeding；4）Utilize CO2Detection means detection works as CO from the gas of device for feeding blast pipe outflow2Concentration closes note when being continuously zero The valve of tracheae and blast pipe, remove power set, filter and CO2Detection means；5）Syringe is connected to air injection pipe, opens the valve of air injection pipe, is injected to device for feeding13CO2Gas, complete13CO2Feed Food.
- 2. according to the method for claim 1, it is characterised in that the device for feeding is following（1）Or（2）：（1）The glass infuser of bottom opening, internal diameter 22.5cm, external diameter 23cm, a height of 2.5m, away from being provided with the 20cm of cylinder lower end The circular baffle plate suitable with glass infuser cross section, silica gel is scribbled at baffle edge；The air injection pipe is arranged on away from glass infuser bottom At 30cm, the blast pipe is arranged on away from 10cm at the top of glass infuser；（2）With（1）The device for feeding that equal proportion is expanded or shunk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461638.4A CN106198923B (en) | 2016-06-23 | 2016-06-23 | It is a kind of to original position soil feeding13CO2System and method for |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461638.4A CN106198923B (en) | 2016-06-23 | 2016-06-23 | It is a kind of to original position soil feeding13CO2System and method for |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106198923A CN106198923A (en) | 2016-12-07 |
| CN106198923B true CN106198923B (en) | 2018-01-23 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298539A (en) * | 2007-05-30 | 2008-12-11 | Sumitomo Osaka Cement Co Ltd | Soil pollutant elution testing method and soil pollutant elution promoting apparatus |
| US7856899B2 (en) * | 2004-12-08 | 2010-12-28 | Li-Cor, Inc. | Vent and soil flux measurement system |
| CN202033357U (en) * | 2010-11-03 | 2011-11-09 | 中国科学院新疆生态与地理研究所 | Root system CO2 in-situ automatic measuring device |
| CN102589923A (en) * | 2012-02-10 | 2012-07-18 | 浙江大学 | Plant 13CO2 mark cultivation-root exudate collection integration device |
| CN104655801A (en) * | 2015-01-22 | 2015-05-27 | 北京林业大学 | Gas sampling system and monitoring method for monitoring CO2 motion process between atmosphere and soil |
-
2016
- 2016-06-23 CN CN201610461638.4A patent/CN106198923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7856899B2 (en) * | 2004-12-08 | 2010-12-28 | Li-Cor, Inc. | Vent and soil flux measurement system |
| JP2008298539A (en) * | 2007-05-30 | 2008-12-11 | Sumitomo Osaka Cement Co Ltd | Soil pollutant elution testing method and soil pollutant elution promoting apparatus |
| CN202033357U (en) * | 2010-11-03 | 2011-11-09 | 中国科学院新疆生态与地理研究所 | Root system CO2 in-situ automatic measuring device |
| CN102589923A (en) * | 2012-02-10 | 2012-07-18 | 浙江大学 | Plant 13CO2 mark cultivation-root exudate collection integration device |
| CN104655801A (en) * | 2015-01-22 | 2015-05-27 | 北京林业大学 | Gas sampling system and monitoring method for monitoring CO2 motion process between atmosphere and soil |
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| Publication number | Publication date |
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| CN106198923A (en) | 2016-12-07 |
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