KR101597514B1 - Continuous Flow-through System for Aerobic and Anaerobic Soil Metabolism Test - Google Patents

Continuous Flow-through System for Aerobic and Anaerobic Soil Metabolism Test Download PDF

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KR101597514B1
KR101597514B1 KR1020150171424A KR20150171424A KR101597514B1 KR 101597514 B1 KR101597514 B1 KR 101597514B1 KR 1020150171424 A KR1020150171424 A KR 1020150171424A KR 20150171424 A KR20150171424 A KR 20150171424A KR 101597514 B1 KR101597514 B1 KR 101597514B1
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soil
trap
tube
gas
valve
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KR1020150171424A
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이봉재
서종수
김종환
최봉진
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한국화학연구원
계룡과학주식회사
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft

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Abstract

The present invention relates to an apparatus for aerobic and anaerobic soil metabolism test. According to the present invention, air within a gas cylinder is supplied inside a soil trap in which aerobic soil is stored at a constant amount and flow rate using a digital flow meter, and then volatile substance and carbon dioxide decomposed by aerobic or anaerobic soil microorganism are collected, and then metabolites of aerobic soil are analyzed, and decomposition rate of test substance and produced metabolites are measured, to check in which route the test substance is decomposed when being introduced into the soil and sediment. In the aerobic soil metabolism test device, nitrogen is charged inside a gas cylinder, and nitrogen is supplied inside a soil trap where anaerobic soil is stored, so that the volatile substance and carbon dioxide decomposed by the anaerobic soil microorganism are collected, and methane gas (CH_4) is converted to carbon dioxide to be collected, by passing through and exposed to a quartz tube filled with oxidized copper (CuO) inside an electric ashing furnace at a high temperature (800-900°C) along with externally supplied oxygen, and thereby produced amount of methane gas is measured to analyze the test substance and metabolites of anaerobic soil, and check the decomposition rate and produced metabolites of the test substance in order to check in which route the test substance is decomposed when being introduced into the soil and sediment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerobic and anaerobic soil metabolism test apparatus,

The present invention relates to an apparatus for testing aerobic and anaerobic soil metabolism, and more particularly, to a method and apparatus for testing soil metabolism by supplying nitrogen gas or air of a gas cylinder to a soil trap storing aerobic or anaerobic soil by measuring a constant flow rate and flow rate using a digital floatometer, Carbon dioxide and methane gas, and then analyzing the test substances and metabolites in the soil and identifying the rate of degradation of the test substances and the metabolites produced, so that when the test substances are introduced into the soil and sediments, It is possible to confirm whether it is decomposed into paths.

In general, the soil metabolism test apparatus is a device for predicting environmental risk and environmental behavior by analyzing soil metabolism pathways and degradation rate of harmful substances by soil microorganisms when chemicals such as agricultural chemicals are exposed to the soil.

The conventional art of such a soil metabolism test apparatus will be described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the overall configuration of a conventional soil metabolism test apparatus. FIG. As shown in the drawing, the conventional soil metabolism testing apparatus includes a gas cylinder 210, a needle valve 220 and a volumetric flow meter 230 for controlling the hydraulic pressure and flow rate, )Wow; And a chamber 420 having a plurality of beakers 410 connected to the apparatus system 200 and the tube 300 to receive the gas and store the aerobic soil therein, A test system 400 for collecting substances and carbon dioxide (CO 2 ); And a trap 500 connected to the chamber 420 of the test system 400 and the tube 300 for forcibly collecting carbon dioxide decomposed by the microorganisms in the internal soil.

The apparatus system 200 is provided with a trap 240 (241) in which sodium hydroxide and water are stored, a fine filter 260 and a needle valve 220 for filtering foreign substances contained in the air in the gas cylinder 210 The trap system 500 includes a volumetric material 230 and a vacuum pump 520. The volumetric material decomposed by the soil microorganisms stored in the beaker 410 of the chamber 420 and carbon dioxide 430) (440).

The air in the gas cylinder 210 is filtered through the fine filter 260 and the sodium chloride is supplied to the soil through the needle valve 220 at a constant pressure. And the water is stored in the trap 240 and the beaker 410 in the chamber 420 containing the aerobic soil through the tube 300 while the flow rate and the volume of the water are controlled by the ball floater 230 .

When thus supplied into the beaker 410, while volatile material that is decomposed by the aerobic soil microorganism of the inner and, and carbon dioxide (CO 2) the controlled flow rate and the amount of operation and the ball flow meter (230) of the vacuum pump 520 The test substance and the metabolic substance in the soil are forcibly trapped in the sodium hydroxide trap 530 (540) through the tube 300 and the decomposition rate of the test substance and the produced metabolite are checked so that the test substance is contained in the soil and sediment It is possible to confirm which path is decomposed.

However, in the conventional soil metabolism test apparatus, it is difficult to accurately measure the flow rate and the flow rate because the water is saturated by the water trap and hinders the ball motion of the volumetra due to the generation of moisture, As the soil metabolism test was carried out, the repeatability and accuracy decreased, and the pressure of the gas cylinder alone could not capture the volatile substances and the carbon dioxide (CO 2 ), which were decomposed by the soil microorganisms, The additional burden was added to the equipment, and since the methane gas generated during the anaerobic soil metabolism test could not be collected by this apparatus, there was a problem such that the anaerobic soil metabolism test apparatus was additionally installed.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for supplying air inside a gas cylinder into a soil trap storing a breathable soil at a constant flow rate by using a digital floatmeter, It is an object of the present invention to provide an aerobic soil metabolism test apparatus configured to collect volatile substances and carbon dioxide which are decomposed and then analyze the metabolites to aerobic soil and confirm the decomposition rate of the test substances and the metabolites generated.

Another object of the present invention is to provide a method and apparatus for supplying nitrogen gas inside a gas cylinder into a soil trap storing anaerobic soil at a predetermined flow rate and flow rate using a digital floatmeter to collect volatile substances and carbon dioxide which are decomposed by anaerobic soil microorganisms, CH 4 ) is supplied to the electroconversion furnace as oxygen supplied from the outside and is converted to carbon dioxide by being exposed to high temperature (800 ° C. to 900 ° C.), and the amount of methane gas produced is measured by collecting the test substance and metabolite of anaerobic soil And to provide an aerobic soil metabolism test apparatus constructed so as to confirm the decomposition rate of the test substance and the produced metabolites.

In order to achieve the above-mentioned object, the present invention provides a gas turbine comprising a gas cylinder filled with air, a distilled water trap connected with a gas cylinder and a main supply tube and storing distilled water, a distilled water trap connected with a distilled water trap and a tube, A system consisting of a four-way valve; A soil trap connected to the four-way valve, the soil trap being supplied with air through a distributing means and a valve device provided on a front shelf, held on a front rack, and storing aerobic soil therein; A test system consisting of ethylene glycol traps and first and second sodium hydroxide traps sequentially connected by soil traps and tubes, held on a front shelf and containing ethylene glycol (Glycol) and sodium hydroxide (NaOH); And a gas measuring system detachably coupled to the valve device for measuring a flow rate and a flow rate of the air and supplying the measurement result to the soil trap.

The present invention also relates to a system comprising a gas cylinder filled with nitrogen, a distilled water trap connected with a gas cylinder and a main supply tube, the distilled water trap storing distilled water, and a four-way valve connected with a distilled water trap and a tube; A soil trap connected to the four-way valve, the soil trap being supplied with nitrogen through a distributing means and a valve device provided on a front rack, held on a front rack, and storing anaerobic soil therein; A test system consisting of ethylene glycol traps and first and second sodium hydroxide traps sequentially connected by soil traps and tubes, held on a front shelf and containing ethylene glycol (Glycol) and sodium hydroxide (NaOH); A gas measurement system detachably coupled to the valve device for measuring the flow rate and flow rate of nitrogen and supplying the measurement signal to the soil trap; And a three-way valve connected with said second sodium hydroxide trap and tube; An electric painting furnace connected with the three-way valve and the tube for converting methane gas (CH 4 ) into carbon dioxide (CO 2 ) at a high temperature (800 ° C. to 900 ° C.) inside; And a conversion measurement system connected with the electroconversion furnace and the tube and composed of the third sodium hydroxide trap held on the rear shelf for capturing the converted carbon dioxide (CO 2 ) and measuring the amount of methane gas (CH 4 ) produced, A digital flowmeter is connected to the three-way valve as a tube. A gas cylinder filled with oxygen (O 2 ) is connected to the digital floatmeter, and oxygen is supplied at the measured flow rate and flow rate to remove the methane generated in the anaerobic soil metabolism test a gas (CH 4) and being tucked into the electricity to painting.

According to the present invention, air inside a gas cylinder is fed into a soil trap storing a breathable soil at a constant flow rate by using a digital floater to collect volatile substances and carbon dioxide, which are decomposed by aerobic or anaerobic soil microorganisms, In this aerobic soil metabolism test, the rate of decomposition of the test material and the metabolites produced are checked, and the pathway of decomposition of the test material into soil and sediment can be confirmed. , Nitrogen gas is filled in the gas cylinder and nitrogen is supplied to the soil trap storing the anaerobic soil to collect volatile substances and carbon dioxide which are decomposed by the anaerobic soil microorganisms and methane gas (CH 4 ) Together with high temperature (800 ° C - 900 ° C) electrophoresis, copper oxide (CuO) The test substance and its metabolites are analyzed by measuring the amount of methane gas produced by conversion to carbon dioxide by passing through a quartz tube and collecting the methane gas, So that it is possible to confirm what path is decomposed when it enters the sediment.

1 is a conceptual diagram schematically showing a conventional soil metabolism test apparatus.
FIG. 2 and FIG. 3 are conceptual views schematically showing an aerobic and anaerobic soil metabolism test apparatus according to the present invention.
FIG. 4 is a view showing an oxygen supply means of the anaerobic soil metabolism test apparatus according to the present invention. FIG.
FIG. 5 is a general view showing an aerobic and anaerobic soil metabolism test apparatus according to the present invention. FIG.
Fig. 6 is an enlarged cross-sectional view of the portion "A" in Fig. 5; Fig.
7 is a view showing a distributing means and a valve device of the aerobic and anaerobic soil metabolism test apparatus according to the present invention.
8 is a schematic view showing a state in which a distributing means and a valve device of an aerobic and anaerobic soil metabolism test apparatus according to the present invention are installed.
FIG. 9 is a view showing a state in which a digital flow meter is connected to a valve apparatus of an aerobic and anaerobic soil metabolism test apparatus according to the present invention, and a gas whose flow rate and flow rate are measured is supplied as a soil trap.
10 is a schematic view of a shelf of an aerobic and anaerobic soil metabolism test apparatus according to the present invention.
11 and 12 are diagrams showing a state in which a test vessel is held on a shelf of an aerobic and anaerobic soil metabolism test apparatus according to the present invention.
FIGS. 13 to 15 are diagrams showing an electric painting furnace of an aerobic and anaerobic soil metabolism test apparatus according to the present invention. FIG.

Hereinafter, a temporal example of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are schematic diagrams showing the aerobic and anaerobic soil metabolism test apparatus according to the present invention, and FIG. 4 is a diagram showing the oxygen supply means of the anaerobic soil metabolism test apparatus according to the present invention FIG. 5 is a schematic view showing the aerobic and anaerobic soil metabolism test apparatus according to the present invention as a whole, FIG. 6 is an enlarged cross-sectional view of the portion "A" of FIG. 5, A distribution means of the anaerobic soil metabolism test apparatus, and a valve apparatus.

2 to 7, the apparatus for testing aerobic and anaerobic soil metabolism according to the present invention comprises a gas cylinder 11 filled with air or nitrogen (N 2 ), a gas cylinder 11, A distilled water trap 14 connected with the supply tube 12 and storing distilled water therein and a four- way valve 14 connected to the distilled water trap 14 and the tube 12a to branch off air or nitrogen (N 2 ) (10) made up of a plurality of semiconductor chips (16); Air or nitrogen is supplied through the distributing means 70 and the valve device 80 provided in the front rack 60 with the distribution tubes 21a to 21c connected to the four way valve 16 and the air or nitrogen is supplied to the front rack 60 A soil trap 22 that is held by the soil trap 22 and a tube 12b and is held in the front shelf 60 and is made of ethylene glycol and hydroxide (20) consisting of an ethylene glycol trap (24) and a first and second sodium hydroxide trap (25) (26) storing sodium (NaOH); An oxygen supply for supplying oxygen at an appropriate pressure and flow rate in connection with the second sodium hydroxide trap 26 of the test system 20 so as to supply the methane gas (CH 4 ) generated during the test into the electric circuit 90 A means 30 and an electrochemical furnace 90 for converting the methane gas (CH 4 ) supplied to the oxygen feed port 30 into carbon dioxide (CO 2 ) at a high temperature (800 ° C. to 900 ° C.) The third sodium hydroxide trap (not shown) held on the rear shelf 61 is connected to the painting furnace 90 and the tube 12e to collect the converted carbon dioxide (CO 2 ) and measure the amount of methane gas (CH 4 ) 42; A gas measurement system 50 for detachably coupled to the valve device 80 and the oxygen supply means 30 for measuring the flow rate and flow rate of air, nitrogen or oxygen and supplying it to the soil trap 22 and the electrical circuit 90 ).

 The distilled water trap (14) stores distilled water therein, and nitrogen or air in the dry gas cylinder (11) flowing into the inside is saturated. The main supply tube 12 is provided with a main shutoff valve 13 for supplying and shutting off the air or nitrogen in the gas cylinder 11 and the distribution tubes 21a to 21c are provided with the soil of the front rack 50 The shut-off lever 13a (21a-1) is connected to the main shut-off valve 13 and the selective shut-off valve 21, .

The oxygen supply means 30 comprises a first three way valve 31 (see FIG. 3) mounted on a plurality of tubes 12c connected between the second sodium hydroxide trap 26 of the test system 20 and the electrical circuit 90, )Wow; Way valve 33 connected to the first three-way valve 31 by a tube 12e provided with a shut-off valve 32 and an oxygen supply line 35 equipped with a plurality of second three-way valves 34 )and; And a gas cylinder 36 connected to the four- way valve 33 by a tube 12f and filled with oxygen (O 2 ).

A plurality of tubes 12c are connected between the second sodium hydroxide trap 26 and the electric circuit 90 depending on the number of test systems 20 to be tested in the front shelf 60 and the tubes 12c A first three-way valve 31 is mounted.

One end of a tube 12e provided with a shut-off valve 32 is connected to the first three-way valve 31, and oxygen is supplied to the other end of the tube 12e in correspondence with the first three- Way valve 33 and a second three-way valve 34 mounted on the supply line 34 are connected.

Further, the gas cylinder 36 filled with oxygen is connected to the four-way valve 33 by the tube 12f to supply oxygen constantly.

The tube 12e is provided with a connection hole 12e-1 through which the gas supply tube 54 and the gas discharge tube 55 of the digital floatmeter 52 are detachably connected.

The gas meter 50 includes a digital floatometer 52 for measuring the flow rate and flow rate of air, nitrogen or oxygen; A connection valve 50a connected to the connection port 12e-1 provided in the digital floatation 52, the supply valve 82 (83) of the valve device 80 and the tube 12e of the oxygen supply means 30, To the gas supply tube 54 and the gas discharge tube 55 which are detachably connected to the soil trap 22 or the electrophoresis furnace 90 through the digital floatmeter 52 and air, .

The front shelf 60 and the rear shelf 61 are provided with a vertical wheel 62 having a moving wheel 60a at a lower portion thereof and arranged at a right angle; A plurality of engagement holes 63 movably coupled to the outer circumferential surface of the vertical column 62 and vertically equidistantly spaced from each other, A top support member 66, a center support member 67, and a bottom support member 68, which are made up of a face finishing base 64 and left and right finishing bases 65; A horizontal spring 69a and a vertical spring 69b are provided between the front and rear end closure belts 64 and the left and right closure bases 65 of the upper support member 66, the center support member 67 and the lower support member 68, And a trap spring holder 69 in which the soil trap 22, the first and second sodium hydroxide traps 25 and 26, and the third sodium hydroxide trap 42 are vertically and elastically held.

The horizontal spring 69a and the vertical spring 69b of the trap spring holder 69 are connected to the small-sized ethylene glycol trap 24, the first and second sodium hydroxide traps 25 and 26 and the third sodium hydroxide trap 42 are held at the positions where the ground traps 22 are held, and the horizontal springs 69a are assembled and held in a lattice shape superimposed on the upper portion at the position where the large-sized soil traps 22 are held.

The distributing means 70 is horizontally fixed to the lower support member 66, the center support member 67 and the lower support member 68 of the front shelf 60 and is connected to a distribution tube A horizontal connection tube 72 to which air or nitrogen is supplied and connected to the connection tubes 21a to 21d; And a plurality of T-shaped binding ports 74 connected to the horizontal connecting tube 72 at equal intervals.

The valve device 80 includes a plurality of fixing plates 81 vertically mounted on the front surface of the front support shelf 60, the upper support member 66, the center support member 67 and the lower support member 68; Supply valves 82 and 83 mounted on the upper and lower sides of the front surface of the fixing plate 81; A T-shaped connection port 84 (85) detachably connected to one side of the supply valves 82 (83) and mounted on the fixing plate 81; A shut-off valve 86 detachably connected between the lower and upper portions of the T-shaped connecting ports 84, 85; A gas control valve 87 detachably connected to the lower portion of the T-shaped connection port 85 ; And a measuring tube 88 detachably connected between the gas control valve 87 and the T-shaped binding port 74 for supplying air or nitrogen to the digital floatmeter 52.

A plurality of supply tubes 89 are detachably connected between the upper portion of the T-shaped connection port 84 and the soil trap 22 to supply nitrogen or air into the soil trap 22.

At this time, the supply valves 82 and 83 and the shutoff valve 86 are selectively opened and closed to switch the flow of nitrogen or air supplied to the soil trap 22.

A tube 12b connected between the feed tube 89 connected to the soil trap 22 and the ethylene glycol trap 24 and the first and second sodium hydroxide traps 25 and 26 is provided with an O- The combined plug-in reducer 3 is inserted and the screw cap 4 is tightened to maintain airtightness.

The electroconductive furnace 90 includes a lower bracket 92 fastened to the upper portion of the pedestal 91; A lower case 93 fixed to the upper portion of the lower bracket 92 and having a polygonal shape; A lower heat insulator 94 provided in the lower case 93 and having a semicircular groove 94a; A lower thermal insulation finishing body 95 (96) which is fastened to both ends of the lower case 92 to close the semicircular groove 94a of the lower heat insulating body 94 and has a plurality of lower through holes 95a corresponding thereto; An upper case 98 which is hingedly connected to the lower case 92 by being hingedly connected to the lower case 92 so as to be opened and closed and which is locked with the lower case 93 as a locking means 97 at the front; An upper heat insulator 99 provided in the upper case 98 and having a semicircular groove 99a; And upper insulating finishing bodies 100 and 110 formed by closing the semicircular grooves 99a of the upper insulating body 99 and being fixed to both ends of the upper case 98 so as to correspond to a plurality of upper through holes 101.

At this time, the lower and upper through-holes 95 and 96 of the quartz tube 120 filled with copper oxide (CuO) are inserted into the lower through-holes 95a and 101a of the upper and lower thermal insulation bodies 100 and 110, Is inserted.

A heating controller 130 for supplying a high temperature (800 DEG C-900 DEG C) constantly to the inside is connected to the upper case 98 of the electric painting furnace 90, and an upper case 98 and an upper heat insulating body The temperature sensor 140 is installed vertically so that its lower end is located in the semicircular groove 94a of the lower heat insulator 94. The sensed signal is transmitted to the heating controller 130 after sensing the internal temperature , And the temperature suitable for the test is maintained at a constant level of 800 ° C to 900 ° C.

On the other hand, to an electrical conversation, as shown in Fig 90 is the base 91 is fitted inside a large amount of methane gas that is supplied from the second aqueous sodium hydroxide trap 26 of the test system (20) (CH 4), carbon dioxide ( CO 2 ), and a heating controller 130 for supplying a high temperature (800 ° C.-900 ° C.) of the electroconversion furnace 90 constantly is provided.

The operation state of the aerobic soil metabolism test apparatus according to the present invention constructed as described above will be schematically described.

As shown in Figs. 2 and 5, the front and rear end climbing belts 64 and the left and right cladding fingers 64 of the upper support member 66, the center support member 67 and the lower support member 68 constituting the front shelf 60 An ethylene glycol trap 24 and a first and a second sodium hydroxide trap are provided between the horizontal spring 69a and the vertical spring 69b of the trap spring holder 69 assembled in a lattice shape between the soil trap 22, The soil trap 22 is connected to the tube 12b so as to maintain airtightness by using the plug-in reducer 3 and the screw cap 4 to which the O-ring 2 is coupled, And aerobic soil is put inside.

When the gas cylinder 11 is opened in this state, the air inside is supplied to the distilled water trap 14 through the main supply tube 12 at a constant pressure, and the water is saturated by the distilled water stored therein Way valve 16 connected by a distilled water trap 14 and a tube 12a to the top support member 66 of the front shelf 60 through the distribution tubes 21b-21d of the four- To the horizontal connecting tube 72 of the distributing means 70 provided on the central supporting member 67 and the lower supporting member 68 (see FIG. 7)

In order to selectively supply the air to the horizontal connection tube 72 of the dispensing means 70, the selective shutoff valve 21 provided in the distribution tubes 21a-21c is operated to supply the air to a desired location.

Namely, when the selective shutoff valve 21 of the distribution tube 21a of the distribution tubes 21a-21c is opened and the selective shutoff valve 21 of the distribution tubes 21b-21c is shut off, Air is supplied to the horizontal connecting tube 72 provided in the upper supporting member 66 and the flow rate and the flow rate are measured through the digital floater 52 of the gas measuring system 50 to be supplied into the soil trap 22 So that the aerobic soil metabolism test can be carried out safely and accurately (see FIG. 8).

The air supplied to the horizontal connecting tube 72 provided on the upper supporting member 66 of the front rack 60 is supplied to the T connecting bushing 72 connected equally to the horizontal connecting tube 72 74 connected to the T-shaped connection port 85 and the gas supply tube 54 connected to the T-shaped connection port 85 through the measurement tube 88 and the gas control valve 87 connected to the T- And supplied to the digital floatator 52 to measure the flow rate and the flow rate of the liquid and flow through the gas discharge tube 55 and the supply valve 82 of the digital floatmeter 52 and the T- Is fed into a soil trap (22) held on a front shelf (60) through a supply tube (89) connected between the traps (22).

At this time, in order to measure the flow rate and flow rate of the air, the shutoff valve 86 is shut off and the supply valves 82 and 83 are opened to allow the flow of the air to pass through the digital floatmeter 52 )

When air is supplied into the soil trap 22, volatile substances and carbon dioxide, which are decomposed by the aerobic soil microorganisms in the soil trap 22, are supplied to the ethylene glycol trap 24 connected to the tube 12b, As the carbon dioxide is captured and sequestered with the first and second sodium hydroxide traps 25 and 26, the metabolites of the aerobic soil are analyzed and the rate of degradation of the test material and the metabolites produced are determined, It is possible to confirm the route of decomposition when it enters the soil and sediments.

3 and 5, an operation state of the anaerobic soil metabolism testing apparatus will be schematically described. The upper supporting member 66, the center supporting member 67, and the lower supporting member 67, which constitute the front rack 60, Between the horizontal spring 69a and the vertical spring 69b of the trap spring holder 69 assembled in a lattice form between the front and rear end closure belts 64 and the left and right closure bases 65 of the soil trap 22 The ethylene glycol trap 24 and the first and second sodium hydroxide traps 25 and 26 are held and then the plug-in reducer 3 and the screw cap 4 to which the O- And connected to each other by a tube 12b so as to be maintained, and anaerobic soil is introduced into the soil trap 22. [

When the gas cylinder 11 is opened in this state, nitrogen (N 2 ) in the interior of the gas cylinder 11 is supplied to the distilled water trap 14 through the main supply tube 12 at a constant pressure and water is saturated by the distilled water stored therein And is supplied to the four-way valve 16 connected with the distilled water trap 14 and the tube 12a to be supplied to the upper support member 66 of the front shelf 60 through the distribution tubes 21b-21d of the four- To the horizontal connecting tube 72 of the dispensing means 70 provided in the central supporting member 67 and the bottom supporting member 68. [

In order to selectively supply nitrogen to the horizontal connection tube 72 of the distribution means 70, the selective shutoff valve 21 provided in the distribution tubes 21a-21c is operated to supply the nitrogen to the desired location.

Namely, when the selective shutoff valve 21 of the distribution tube 21a of the distribution tubes 21a-21c is opened and the selective shutoff valve 21 of the distribution tubes 21b-21c is shut off, Nitrogen is supplied to the horizontal connection tube 62 provided in the upper support member 66 and the flow rate and flow rate are measured through the digital floatmeter 52 of the gas measurement system 50 to be supplied into the soil trap 22 Volatile substances, carbon dioxide and methane gas decomposed by the anaerobic soil microorganisms in the soil trap 22 are supplied to the ethylene glycol trap 24 connected to the tube 12b to collect volatile substances, , And 2 sodium hydroxide traps 25 (26).

Nitrogen supplied to the horizontal connecting tube 72 provided in the upper supporting member 66 of the front rack 60 is supplied to the T connecting bushing 72 connected equally to the horizontal connecting tube 72 The supply valve 83 connected to the T-shaped connection port 85 and the gas supply tube 87 connected to the T-shaped binding port 74 connected to the T-shaped connection port 85 via the gas control valve 87, 54 to the digital floater 52 to measure the flow rate and the flow rate of the soil water through the gas discharge tube 55 of the digital floatator 52 and the supply valve 82, 22) into the soil trap 22 held on the front shelf 50 via a supply tube 89 connected between them (see Figure 8).

At this time, in order to accurately measure the flow rate and the flow rate of nitrogen, the shutoff valve 86 is shut off and the supply valves 82 and 83 are opened to allow air flow to pass through the digital floatmeter 52 Reference)

In this way, nitrogen is supplied into the soil trap 22, and volatile substances, carbon dioxide, and methane gas decomposed by the anaerobic soil microorganisms therein are supplied to the ethylene glycol trap 24 connected to the tube 12b, And the carbon dioxide is successively collected into the first and second sodium hydroxide traps 25 and 26 (see FIG. 3)

4, the methane gas generated in the anaerobic soil metabolism test is supplied to the first three-way valve 31 and the tube 12e by the oxygen supplied from the gas cylinder 36 of the oxygen supplying means 30 The carbon dioxide supplied to the inside of the electroconversion furnace 90 maintained at a high temperature (800 DEG C-900 DEG C) is converted into carbon dioxide, and the converted carbon dioxide is supplied to the third hydroxide And is collected by the sodium trap 42 to measure the amount of methane gas (CH 4 ) produced.

That is, when the oxygen in the gas cylinder 36 constituting the oxygen supply means 30 is supplied to the four-way valve 33 mounted on the oxygen supply line 35 through the tube 12f, 1 connected to the connection pipe 12e-1 of the tube 12e by the gas supply tube 54 and the gas discharge tube 55, The tube 12c connected between the second sodium hydroxide trap 26 and the electric circuit 90 as the flow rate and flow rate are measured through the flowmeter 52 and supplied to the first three way valve 31, methane gas (CH 4) a lower heat-insulating closing body 95 is 96 and the upper insulating finishing material the lower through hole (95a) formed on the (100) (110) and the upper through hole (101 to electric conversation 90 fed through And is supplied to the quartz tube 120 filled with copper oxide (CuO) (see Figs. 13 and 14)

At this time, the oxygen supplied from the gas cylinder 36 passes through the oxygen supply line 35 while the oxygen amount supplied to the first valve and the last valve among the plurality of valves mounted on the oxygen supply line 35 is uniform .

The shutoff valve 32 mounted on the tube 12e to which oxygen is supplied from the gas cylinder 36 is opened and the shutoff valve 32 mounted on the remaining tube 12e is shut off to block the supply of oxygen .

When oxygen and methane gas are exposed to a high temperature (800 ° C.-900 ° C.) while passing through a quartz tube 120 filled with internal copper oxide (CuO), the carbon dioxide is converted into carbon dioxide. 120 and the tube 12d and is trapped by the third sodium hydroxide trap 42 resiliently held in the trap spring holder 69 of the rear shelf 61. As the amount of methane gas produced is measured , Analysis of metabolites in anaerobic soils, identification of the rate of degradation of the test substance and the metabolites produced, and the pathway of degradation of the test material when it enters the soil and sediments.

While the present invention has been described and illustrated in terms of preferred embodiments for illustrating the principles of the invention, it is not intended that the invention be construed as limited to the exact construction and operation shown and described. It will be apparent to those skilled in the art that numerous modifications and variations can be made to the present invention without departing from the spirit and scope of the claims. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

10: Device system 11: Gas cylinder
12: main supply tube 12a-12f: tube
16, 34: Four Way valve 20: Test system
21a-21c: distribution tube 22: soil trap
24: Ethylene glycol trap 25, 26: 1st and 2nd sodium hydroxide traps
30: oxygen supply means 31, 33: first and second three way valves
32: shutoff valve 35: oxygen supply line
36: Gas cylinder 40: Conversion meter
42: tertiary sodium hydroxide trap 50: gas meter
52: digital flow meter 54: gas supply tube
55: gas discharge tube 60,61: front and rear shelves
62: vertical column 63:
64a: space portion 64: front and rear finishing bases
65: left and right finishing stand 66: upper support member
67: center support member 68: lower support member
69: Trap spring holder 69a, 69b: Horizontal and vertical springs
70: dispensing means 80: valve device
81: Fixing plate 82, 83: Supply valve
84,85: T-shaped connection port 86: shutoff valve
87: gas control valve 88: measuring tube
90: Electrical painting 91: Stand
92: lower bracket 93: lower case
94: Lower heat insulating body 94a: Semicircular groove
95,96: Lower thermal insulation finishing body 95a: Lower through hole
97: locking means 98: upper case
99: Upper heat insulator 99a: Semicircular groove
100, 110: upper insulation finishing body 101: upper opening
120: quartz tube 130: heating controller

Claims (9)

A distilled water trap 14 connected with the gas cylinder 11 and the main supply tube 12 and storing distilled water and a distilled water trap 14 connected with the distilled water trap 14 and the tube 12a An apparatus system (10) comprising a four-way valve (16) for branching air;
Air is supplied through the distributing means 70 and the valve device 80 provided in the front shelf 60 with distribution tubes 21a-21c connected to the four-way valve 16, A soil trap (22) in which aerobic soil is stored; An ethylene glycol trap 24 which is sequentially connected by a soil trap 22 and a tube 12b and which is held on the front shelf 60 and stored with ethylene glycol and sodium hydroxide (NaOH) A test system 20 consisting of sodium traps 25 (26); And
A gas meter 50 detachably coupled to the valve device 80 for measuring the flow rate and flow rate of air and supplying it to the soil trap 22;
Wherein the aerobic soil metabolism test apparatus comprises: A distilled water trap 14 connected with a gas cylinder 11 and a main supply tube 12 and storing distilled water and a distilled water trap 14 connected with a distilled water trap 14 and a tube 12a An apparatus system (10) comprising a four-way valve (16) in which nitrogen is branched;
Nitrogen is supplied through the distributing means 70 and the valve device 80 provided in the front rack 60 with distribution tubes 21a-21c connected to the four-way valve 16, A soil trap (22) in which anaerobic soil is stored; An ethylene glycol trap 24 which is sequentially connected by a soil trap 22 and a tube 12b and which is held on the front shelf 60 and stored with ethylene glycol and sodium hydroxide (NaOH) A test system 20 consisting of sodium traps 25 (26);
And a second oxygen sensor 24 connected to the second sodium hydroxide trap 26 of the test system 20 for supplying oxygen at an appropriate pressure and flow rate to supply methane gas (CH 4 ) A supply means (30); An electrochemical furnace 90 for converting the methane gas (CH 4 ) supplied to the oxygen adsorption stage 30 into carbon dioxide (CO 2 ) at a high temperature (800 ° C. to 900 ° C.) from the inside; And a third sodium hydroxide trap (not shown) held on the rear shelf 61 for measuring the amount of methane gas (CH 4 ) produced by capturing the converted carbon dioxide (CO 2 ), which is connected to the electric painting furnace 90 and the tube 12d. (42); And
A gas meter (not shown) detachably coupled to the valve device 80 and the oxygen supply means 30 for measuring the flow rate and flow rate of air, nitrogen or oxygen and supplying the soil trap 22 and the electrical circuit 90 50);
And an anaerobic soil metabolism test apparatus. 3. A process according to claim 1 or 2, characterized in that the feed tube (89) connected to the soil trap (22) and the tube connected between the ethylene glycol trap (24) and the first and second sodium hydroxide traps Wherein a plug-in reducer (3) having an O-ring (2) coupled thereto is inserted into the hole (12b), and the screw cap (4) is tightened to maintain airtightness. 3. The apparatus according to claim 2, wherein the oxygen supply means (30)
A first three-way valve 31 mounted on a plurality of tubes 12c connected between the second sodium hydroxide trap 26 of the test system 20 and the electrical circuit 90;
Way valve 33 connected to the first three-way valve 31 by a tube 12e provided with a shut-off valve 32 and an oxygen supply line (not shown) equipped with a plurality of second three-way valves 34 35);
And a gas cylinder (36) connected to the way valve (33) by a tube (12f) and filled with oxygen (O 2 ) therein . The gas measurement system according to claim 1 or 2, wherein the gas measurement system (50)
A digital floatometer 52 for measuring the flow rate and flow rate of air, nitrogen or oxygen;
Nitrogen, or oxygen is connected to the digital flow meter 52, the supply valve 82 of the valve device 80 and the tube 12e of the oxygen supply means 30, And a gas supply tube (54) and a gas discharge tube (55) which are supplied to the soil trap (22) or the electric painting furnace (90) through the gas supply tube (52). 3. The apparatus according to claim 1 or 2, wherein the front shelf (60)
A vertical column 62 having a moving wheel 60a at a lower portion thereof and disposed at a right angle;
A plurality of coupling holes 63 movably coupled to the outer circumferential surface of the vertical column 62 and vertically equidistantly spaced and a rectangular space 64a formed in the coupling hole 63 A top support member 66, a center support member 67, and a bottom support member 68, which are composed of a front and rear finishing base 64 and left and right finishing bases 65;
A horizontal spring 69a and a vertical spring 69b are provided between the front and rear end closure belts 64 and the left and right closure bases 65 of the upper support member 66, the center support member 67 and the lower support member 68 And a trap spring holder (69) assembled in a lattice shape and vertically and elastically holding the soil trap (22), the ethylene glycol trap (24) and the first and second sodium hydroxide traps (25, 26) Aerobic and anaerobic soil metabolism test equipment. The traverse spring holder (69) of the front lathe (60) according to any one of claims 1 to 7, wherein the lateral spring (69a) and the longitudinal spring (69b)
At the positions where the ethylene glycol trap 24 and the first and second sodium hydroxide traps 25 and 26 are held,
Wherein the soil trap (22) is assembled and held in a stacked lattice shape at a position where the soil trap (22) is held. 3. A valve system according to claim 1 or 2, wherein the valve device (80)
A plurality of fixing plates 81 mounted on the entire upper supporting member 66, the central supporting member 67 and the lower supporting member 68 of the front shelf 60;
Supply valves 82 and 83 mounted on the upper and lower sides of the front surface of the fixing plate 81;
T-shaped connection ports 84 and 85 detachably connected to one side of the supply valves 82 and 83 and mounted on the fixing plate 81;
A shut-off valve 86 detachably connected between the lower and upper portions of the T-shaped connection ports 84 and 85;
A gas control valve 87 detachably connected to the lower portion of the T-shaped connection port 85;
And a measuring tube 88 detachably connected between the gas control valve 87 and the T-shaped binding port 74 for supplying air or nitrogen to the digital floatmeter 52. The anaerobic and aerobic Soil Metabolism Test System. 3. The electrophotographic printer according to claim 2,
A lower bracket 92 fastened to the upper portion of the pedestal 91;
A lower case 93 fixed to the upper portion of the lower bracket 92;
A lower heat insulator 94 provided in the lower case 93 and having a semicircular groove 94a; A lower thermal insulation finishing body 95 (96) which is fastened to both ends of the lower case 92 to close the semicircular groove 94a of the lower heat insulating body 94 and has a plurality of lower through holes 95a corresponding thereto;
An upper case 98 connected to the lower case 92 so as to be openable and closable at the rear and locked with the lower case 93 as a locking means 97 at the front;
An upper heat insulator 99 provided in the upper case 98 and having a semicircular groove 99a; An upper insulation finishing body 100 (110) having a semicircular groove 99a of the upper heat insulating body 99 fastened to both ends of the upper case 98 and having a plurality of upper through holes 101 corresponding thereto;
A quartz tube inserted into the lower through-hole finishing bodies 95 and 96 and the upper through-hole 95a and the upper through-hole 101 of the upper insulating finishing bodies 100 and 110 and filled with copper oxide (CuO) 120;
And a heating controller (130) connected to the upper case (98) to maintain an internal temperature (800 DEG C - 900 DEG C).
KR1020150171424A 2015-12-03 2015-12-03 Continuous Flow-through System for Aerobic and Anaerobic Soil Metabolism Test KR101597514B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109085325A (en) * 2018-09-13 2018-12-25 河北省地质环境监测院 A kind of the indoor soil-column experimental provision and method of soil pollution and repairing and treating process simulation
CN110082484A (en) * 2019-06-04 2019-08-02 中国水产科学研究院黑龙江水产研究所 A kind of water-deposit degradation experiment system
KR102007480B1 (en) * 2018-10-30 2019-08-05 강원대학교산학협력단 An Evaluation Method for Ecotoxicity Test Using Spore-forming Bacteria
CN117470598A (en) * 2023-12-28 2024-01-30 南京拓服工坊科技有限公司 Quick analyzer for nitrogen-oxygen-containing volatile organic compounds of environment monitoring fixed station

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Title
농약과학회지 제18권 제4호 258-268페이지(2014) *
비특허 1 한국화학연구원 2015 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109085325A (en) * 2018-09-13 2018-12-25 河北省地质环境监测院 A kind of the indoor soil-column experimental provision and method of soil pollution and repairing and treating process simulation
CN109085325B (en) * 2018-09-13 2024-01-05 河北省地质环境监测院 Indoor soil column experiment device and method for simulating soil pollution and repair treatment process
KR102007480B1 (en) * 2018-10-30 2019-08-05 강원대학교산학협력단 An Evaluation Method for Ecotoxicity Test Using Spore-forming Bacteria
CN110082484A (en) * 2019-06-04 2019-08-02 中国水产科学研究院黑龙江水产研究所 A kind of water-deposit degradation experiment system
CN110082484B (en) * 2019-06-04 2024-03-26 中国水产科学研究院黑龙江水产研究所 Water-sediment degradation experiment system
CN117470598A (en) * 2023-12-28 2024-01-30 南京拓服工坊科技有限公司 Quick analyzer for nitrogen-oxygen-containing volatile organic compounds of environment monitoring fixed station
CN117470598B (en) * 2023-12-28 2024-02-27 南京拓服工坊科技有限公司 Quick analyzer for nitrogen-oxygen-containing volatile organic compounds of environment monitoring fixed station

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