CN112082826A - Device for collecting odor emission of soil after covering and burying of waste vegetable soil and detection method - Google Patents

Device for collecting odor emission of soil after covering and burying of waste vegetable soil and detection method Download PDF

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CN112082826A
CN112082826A CN202010994531.2A CN202010994531A CN112082826A CN 112082826 A CN112082826 A CN 112082826A CN 202010994531 A CN202010994531 A CN 202010994531A CN 112082826 A CN112082826 A CN 112082826A
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soil
air chamber
sponge
cylindrical air
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薛伟
巴音
魏永羡
李凤民
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Lanzhou University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2294—Sampling soil gases or the like
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract

The invention discloses a device and a method for collecting soil odor emission after covering and burying waste vegetables, wherein the device comprises a cylindrical air chamber for collecting ammonia gas and a static box for collecting hydrogen sulfide, a connecting clamping groove is formed in the side face of the cylindrical air chamber, a connecting clamping piece matched and clamped with the connecting clamping groove is arranged on the side face of the static box, four stainless steel rain shielding plate supports which are symmetrical relative to the center of the cylindrical air chamber are fixedly arranged at the top of the outer wall of the cylindrical air chamber, a rain shielding plate is fixedly arranged at the top of each rain shielding plate support, top sponge and bottom sponge are arranged in the cylindrical air chamber, and a glycerol phosphate mixed liquid is injected into the top sponge and the bottom sponge. The invention has the advantages that: the cylindrical air chamber can be used for collecting ammonia gas, the static box is used for collecting hydrogen sulfide, the rain shielding plate can prevent rainwater from polluting collected samples, the collecting effect is good, the sensitivity and the accuracy are high, interference substances are few, the operation is simple and easy to operate, and the outdoor monitoring is convenient to carry out.

Description

Device for collecting odor emission of soil after covering and burying of waste vegetable soil and detection method
Technical Field
The invention relates to the technical field of gas collection and detection, in particular to a device and a method for collecting odor emission of soil after covering and burying of waste vegetable soil.
Background
The Yuzhong county of Lanzhou city has become the biggest main production area and the scatter center of the plateau summer vegetable in Gansu. In 6-10 months per year, a large amount of vegetable residues/vegetable wastes (tail vegetables) are generated in vegetable production and circulation links, the daily average production amount of the tail vegetables is about 3000 tons (fresh weight), and the peak period is up to 5000 tons every day. The production amount of the tail vegetables is large and centralized, the water content is high, the tail vegetables are easy to decay, a large amount of the tail vegetables are stacked on the field, the river and the two sides of the road, a large amount of malodorous gases such as ammonia gas and hydrogen sulfide are generated, and the environment of the suburb people is polluted. The semiarid loess hilly area is close to a cauda vegetable production base in Yuzhong county and a vegetable cold fresh storage, the loess layer is thick, the depth can reach 50-80m, the underground water level is lower than 50m, the cauda vegetable is covered with soil and buried, and then is converted into water and nutrients, secondary pollution is avoided, and the semiarid loess hilly area has strong absorption capacity. The waste vegetable earthing and burying technology is a resource utilization mode which is low in cost, simple, convenient and feasible, can use local materials and achieve multiple purposes, can treat a large amount of waste vegetables, can fertilize soil, and improves the soil quality of loess dry land. The Lanzhou cauda vegetable earthing and burying field is mainly located in loess hilly areas with vertical and horizontal gullies, is far away from residential areas and has few electric facilities, and cannot collect and timely detect air samples by using a portable automatic air sampler with a working power supply of 220V. There is a need for an efficient apparatus and method for obtaining soil malodorous gas (NH) after covering and burying of soil for Laver in loess hilly areas3And H2S is a key component) emission amount, etc.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a device and a method for collecting odor emission of soil after covering and burying of tailstocks.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a tail dish earthing buries and presses back soil odor emission collection system, includes the static case that is used for the cylindrical air chamber that the ammonia was gathered and is used for the hydrogen sulfide to gather, the side of cylindrical air chamber is provided with connecting slot, static case side be provided with the connecting fastener of connecting slot cooperation joint, the outer wall top of cylindrical air chamber is fixed and is provided with four relative to the stainless steel's of cylindrical air chamber central symmetry dash board support, dash board support top is fixed and is provided with dash board, the internal diameter of cylindrical air chamber is 15cm, highly is 20cm, the bottom 5cm of cylindrical air chamber stretches into in the soil, dash board distance the distance of cylindrical air chamber is 5cm, be provided with top sponge and bottom sponge in the cylindrical air chamber, top sponge and bottom sponge in inject the glycerophosphate mixed liquid, the diameter of top sponge and bottom sponge is 16cm, and thickness is 5cm, the bottom sponge set up in the downside of top sponge, the distance of bottom sponge apart from soil is 5cm, the bottom of static case is provided with the case seat, the side of static case is provided with temperature detection hole and bleeder valve, static incasement portion is provided with two fans, the case seat buries in soil, 5cm in the soil is inserted to the bottom of case seat, and the case seat top is provided with dark 2.5cm, wide 2 cm's sealed basin.
Preferably, the cylindrical air chamber is made of polyvinyl chloride or methyl methacrylate.
Preferably, the flashing is made of polyvinyl chloride or methyl methacrylate.
Preferably, the static box is a 50cm × 50cm × 50cm cube and is made of 3mm methyl methacrylate.
Preferably, the box base is a square of 50cm × 50cm and is made of stainless steel.
A detection method of a soil odor emission collection device after covering and burying of tail vegetables comprises the following steps: taking two 500ml plastic bottles, respectively adding 300ml of 1mol/L potassium chloride solution into the two plastic bottles, taking out the top sponge and the bottom sponge after ammonia gas collection, respectively putting the top sponge and the bottom sponge into the two 500ml plastic bottles, completely immersing the sponges in the plastic bottles, respectively oscillating for 1h, determining the content of ammonium nitrogen in a leaching solution, eluting the ammonia gas absorbed by the sponges, and determining soil emission and the content of ammonia gas in air by an indigo spectrophotometry; 3L of gas in the standing box is extracted by a 500ml syringe, then the gas is uniformly injected into an absorption bottle filled with absorption liquid, and the content of hydrogen sulfide discharged from the soil is measured by a methylene blue spectrophotometry.
Preferably, the absorption liquid is a suspension of cadmium hydroxide-polyvinyl alcohol ammonium phosphate.
The invention has the following advantages: the earthing buries and presses back ammonia and hydrogen sulfide and discharges collection system structural design rationally, and cylindrical air chamber can be used for gathering the ammonia, and static case is used for gathering the hydrogen sulfide, and the flashing can prevent that the rainwater from all being annotated the phosphoglyceride mixed liquid to the pollution of gathering the sample in top sponge and the bottom sponge, can gather the ammonia of ammonia in the air and soil discharge respectively, mutual noninterference, it is effectual to gather. Provides a method which has high sensitivity and accuracy, less interfering substances, simple and easy operation and is convenient for monitoring soil NH in the field3And H2S discharge is a new optional method, and is especially suitable for soil NH after loess plateau tailstocks are covered and buried by soil3And H2The discharge amount of S.
Drawings
FIG. 1 is a schematic structural diagram of a soil odor emission and collection device after the cover soil and the burying pressure of the tail vegetables are carried out.
FIG. 2 shows ammonia gas (NH)3) Test method curve test chart.
FIG. 3 is hydrogen sulfide (H)2S) detecting a method curve test chart.
FIG. 4 shows the burying pressure of the cover soil on the tail vegetables in greenhouse experiment on the hydrogen sulfide (H) in the soil2S, a) and ammonia (NH)3And b) emission impact map.
FIG. 5 shows the burying pressure of the covering soil of the field test tail vegetable on the hydrogen sulfide (H) in the soil2S, a) and ammonia (NH)3And b) emission impact map.
As shown in the figure: 1. cylindrical air chamber, 2, static case, 3, connecting groove, 4, connection fastener, 5, dash board support, 6, dash board, 7, soil, 8, top sponge, 9, bottom sponge, 10, case seat, 11, temperature detection hole, 12, bleeder valve, 13, fan, 14, sealed basin.
In fig. 2 and 3, the horizontal axis OD represents absorbance, and the vertical axis ρ represents mass concentration.
In fig. 4 and 5, the horizontal axis Day represents the number of days.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings.
Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
With the attached drawing, the device for collecting odor emission of soil after pressing and burying of the waste vegetable earthing comprises a cylindrical air chamber 1 for collecting ammonia gas and a static box 2 for collecting hydrogen sulfide, wherein a connecting clamping groove 3 is arranged on the side surface of the cylindrical air chamber 1, a connecting clamping piece 4 matched and clamped with the connecting clamping groove 3 is arranged on the side surface of the static box 2, four rain shielding plate supports 5 made of stainless steel materials and symmetrical with the center of the cylindrical air chamber 1 are fixedly arranged at the top of the outer wall of the cylindrical air chamber 1, a rain shielding plate 6 is fixedly arranged at the top of each rain shielding plate support 5, the inner diameter of the cylindrical air chamber 1 is 15cm and 20cm in height, the bottom 5cm of the cylindrical air chamber 1 extends into soil 7, the distance from the rain shielding plate 6 to the cylindrical air chamber 1 is 5cm, and a top 8 and a bottom sponge 9 are arranged in the cylindrical air chamber 1, top sponge 8 and bottom sponge 9 in inject the glycerine phosphate mixed liquid, the diameter of top sponge 8 and bottom sponge 9 is 16cm, and thickness is 5cm, bottom sponge 9 set up in the downside of top sponge 8, bottom sponge 9 is 5cm apart from the distance of soil 7, the bottom of static case 2 is provided with case seat 10, the side of static case 2 is provided with temperature detection hole 11 and bleeder valve 12, static case 2 inside is provided with two fans 13, case seat 10 buries in soil 7, 5cm in soil 7 is inserted to the bottom of case seat 10, and case seat 10 top is provided with dark 2.5cm, wide sealed basin 14 that is 2 cm.
The cylindrical air chamber 1 is made of polyvinyl chloride or methyl methacrylate. The rain shielding plate 6 is made of polyvinyl chloride or methyl methacrylate, the static box 2 is a 50cm multiplied by 50cm square and is made of 3mm methyl methacrylate, and the box base 10 is a 50cm multiplied by 50cm square and is made of stainless steel.
A detection method of a soil odor emission collection device after covering and burying of tail vegetables comprises the following steps: taking two 500ml plastic bottles, respectively adding 300ml of 1mol/L potassium chloride solution into the two plastic bottles, taking out the top sponge and the bottom sponge after ammonia gas collection, respectively placing the top sponge and the bottom sponge into the two 500ml plastic bottles, completely immersing the sponges therein, respectively oscillating for 1h, measuring the content of ammonium nitrogen in the leaching solution, and eluting ammonia gas (NH) absorbed by the sponges3) Measuring the soil emission and the ammonia content in the air by an indigo spectrophotometry; 3L of gas in the standing box is extracted by a 500ml syringe, then the gas is uniformly injected into an absorption bottle filled with cadmium hydroxide-polyvinyl alcohol ammonium phosphate suspension, and the content of hydrogen sulfide discharged from the soil is measured by a methylene blue spectrophotometry.
In the specific implementation of the invention, the static box covers the static box on the box seat, and is sealed, so that no exchange exists between the air in the box body and the outside, the bottom of the static box (a 50cm × 50cm × 50cm cube made of 3mm methyl methacrylate) is provided with the box seat (a 50cm × 50cm square made of stainless steel), 2 sets of fans are arranged in the box body and are used for uniformly mixing the gas in the box body, and the static box is provided with a temperature sensing probe and a gas production pipeline and is connected with a temperature sensing hole and an air extraction valve device outside the static box through a wall joint. The box seat is buried in an experimental community for a long time, the wall of the box seat is inserted into soil by 5cm, a sealed water tank with the depth of 2.5cm and the width of 2cm is arranged at the top end of the box seat, and water is added during sampling to seal the box body and cover the soil. After a certain period of time, 3L of gas in the static box is extracted by a 500ml syringe through a gas production pipeline, then the gas is uniformly injected into an absorption bottle filled with absorption liquid (cadmium hydroxide-polyvinyl alcohol ammonium phosphate suspension), and the determination is carried out by a methylene blue spectrophotometry.
Ammonia gas detection method
The method comprises the following steps of: according to the technical regulation of the method detection limit in appendix A of the revised technical guide of environmental monitoring and analysis method Standard (HJ168-2010), when a target substance is detected in a blank test, repeating n (n is more than or equal to 7) blank tests according to all the steps of sample analysis, converting each measurement result into the concentration or content in a sample, calculating the standard deviation of n times of parallel measurement, and calculating the method detection limit according to a formula (A.1), wherein the specific data are shown in Table 1.
TABLE 1 method detection limit test data sheet
Figure BDA0002692071740000041
Method precision test data: and (4) carrying out method precision verification by adopting an actual sample measurement mode. The curve range is 0.0-0.5 mug/ml, three ammonium sulfate solutions with different concentrations are selected to be placed in a circular air chamber for 2h sampling, each sample is subjected to 6 times of parallel measurement, and the average value, the standard deviation and the relative standard deviation are calculated. The laboratory verification data were counted according to the statistical method specified in annex a of HJ168-2010, and the specific data are shown in table 2.
TABLE 2 precision testing data sheet
Figure BDA0002692071740000042
Method accuracy test data: and (3) carrying out method accuracy verification by adopting a method of self-preparing a solution with a known concentration. Selecting three different concentration quality control samples of high, medium and low in the curve range according to the curve range of 0.0-0.5 mug/ml. Each quality control sample was subjected to 6 replicates and the mean and relative error were calculated. The laboratory validation data were statistically collected according to the statistical method specified in annex a of HJ168-2010, see table 3.
TABLE 3 method accuracy test data
Figure BDA0002692071740000051
Hydrogen sulfide detection method
The method comprises the following steps of: according to the technical regulation of the method detection limit in annex A of the environmental monitoring analysis method Standard formulation revision technical guide (HJ168-2010), when a target substance is detected in a blank test, repeating n (n is more than or equal to 7) blank tests according to all the steps of sample analysis, converting each measurement result into the concentration or content in a sample, calculating the standard deviation of n times of parallel measurement, and calculating the method detection limit according to a formula (A.1), which is specifically shown in Table 4.
TABLE 4 detection limit test data sheet
Figure BDA0002692071740000052
Method precision test data: and (4) carrying out method precision verification by adopting an actual sample measurement mode. The curve range is 0.0-0.50 mug/ml, high, medium and low three solutions are prepared by using sulfide standard solution for determination, each concentration is subjected to 6 times of parallel determination, and the average value, the standard deviation and the relative standard deviation are calculated. The laboratory verification data were collected according to the statistical method specified in annex a of HJ168-2010, and the specific data are shown in table 5.
TABLE 5 precision testing data sheet
Figure BDA0002692071740000061
Method accuracy test data: and (3) carrying out method accuracy verification by adopting a method of self-preparing a solution with a known concentration. Selecting three different concentration quality control samples of high, medium and low in the curve range according to the curve range of 0.00-0.50 mu g/ml. Each quality control sample was subjected to 6 replicates and the mean and relative error were calculated. The laboratory validation data were statistically collected according to the statistical method specified in annex a of HJ168-2010, see table 6.
TABLE 6 method accuracy test data
Figure BDA0002692071740000062
Comparing test data: in the greenhouse test, emission amounts of ammonia gas and hydrogen sulfide after cover pressing of the waste vegetable casing are monitored by adopting a Nashi reagent spectrophotometry for measuring ammonia in ambient air and waste gas (HJ533-2009) and an air and waste gas monitoring and analyzing method (fourth edition) and a methylene blue spectrophotometry (figure 4). As can be seen from FIG. 4(a), the test results showed that QC treatment had the highest H on day 6 from the start of the test2The discharge amount of S reaches 0.17mgm-3Very significantly higher than other treatments. JC1, JC2 and JY and QT have similar H between them2And the S emission amount is not obviously different. QC treatment H with extended treatment time2The S emissions decreased significantly, but was still significantly higher than the other treatments. As can be seen from FIG. 4(b), QC treatment of NH was performed on day 6 after the start of the experiment3The discharge amount is 4.02mgm-3Significantly higher than JC1, JC2, JY and QT treatments. On day 10, all NH treated3Emissions were all significantly increased, but QC treatment was still higher than JC1, JC2, JY and QT treatments. In particular, on day 17, JC2 and JY treated NH3Only 1.98 and 2.38mgm-3Significantly lower than JC1 and QC treatment groups.
FIG. 4 is a greenhouseTest of hydrogen sulfide (H) in the soil by covering and burying the tail vegetable with soil2S, a) and ammonia (NH)3And b) emissions impact. Wherein QC: all dishes are prepared; JC 1: the upper layer is 10cm of loess, the middle layer is 10cm of Chinese cabbage tailed vegetable and the lower layer is 30cm of loess; JC 2: the upper layer is 20cm of loess, the middle layer is 10cm of waste vegetables, and the lower layer is 20cm of loess; JY: the upper layer 30cm is the mixture of the waste vegetables and the soil and the lower layer 20cm of loess; QT: the total soil is 50 cm. Capital letters: significance level 0.01; lower case letters: significance level 0.05.
In the loess hilly area of northern mountain in elm, the device and the method develop a field experiment for covering and burying the soil of the tail vegetables, and monitor the discharge amount of ammonia and hydrogen sulfide in the soil under different combinations of the covering and burying thickness of the tail vegetables (figure 5). As can be seen from FIG. 5(a), the soil covering treatment groups H of C1, C2 and C3 were found to be 7, 15 and 29 days after the soil covering and burying of the tail vegetables after the test2The S emission is only 0.01mgm-3However, the waste vegetable stockpiling processing group (QC) H2The peak value of S emission appears around 7 days and reaches 0.11mgm-3This is highly consistent with greenhouse experimental data. On day 15, QC treatment group H2The discharge amount of S is still as high as 0.10mgm-3The emission amount is reduced to 0.05mgm at 29 days-3. As shown in FIG. 5(b), the covering soil and burying pressure of the waste vegetables for treating NH3The discharge was higher on day 7, and the maximum value of all treatment groups was only 4.7mgm-3Far below QC group 19.7mgm-3. Covering soil and burying pressure treatment group NH for tail vegetables on 15 th and 29 th days3The discharge amount is far less than 2.5mgm-3While the QC processing groups still have very high NH3Discharge capacity of up to 5.0mgm-3This is highly consistent with greenhouse experimental data.
FIG. 5 shows the burying pressure of the covering soil of the field test tail vegetable on the hydrogen sulfide (H) in the soil2S, a) and ammonia (NH)3And b) emissions impact. QC: all dishes are prepared; C1T 1: the thickness of the tail vegetables is 20cm and the thickness of the covering soil is 10 cm; C1T 2: the thickness of the tail vegetables is 20cm and the thickness of the covering soil is 20 cm; C1T 3: the thickness of the tail vegetables is 20cm and the thickness of the covering soil is 30 cm; C2T 1: the thickness of the tail vegetables is 40cm and the thickness of the covering soil is 10 cm; C2T 2: the thickness of the tail vegetables is 40cm and the thickness of the covering soil is 20 cm; C2T 3: the thickness of the tail vegetables is 40cm and the thickness of the covering soil is 30 cm; C3T 1: the thickness of the tail vegetables is 60cm and the thickness of the covering soil is 10 cm; C3T 2: the thickness of the tail vegetables is 60cm and the thickness of the covering soil is 20 cm; C3T 3: tailThe thickness of the vegetables is 60cm and the thickness of the covering soil is 30 cm.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (7)

1. The utility model provides a tail dish earthing buries pressure back soil odor emission collection system which characterized in that: the device comprises a cylindrical air chamber for collecting ammonia gas and a static box for collecting hydrogen sulfide, wherein a connecting clamping groove is formed in the side face of the cylindrical air chamber, a connecting clamping piece matched and clamped with the connecting clamping groove is arranged on the side face of the static box, four rain shielding plate supports which are made of stainless steel and are centrosymmetric relative to the cylindrical air chamber are fixedly arranged at the top of the outer wall of the cylindrical air chamber, a rain shielding plate is fixedly arranged at the top of each rain shielding plate support, the inner diameter of the cylindrical air chamber is 15cm, the height of the cylindrical air chamber is 20cm, 5cm at the bottom of the cylindrical air chamber extends into soil, the distance between the rain shielding plate and the cylindrical air chamber is 5cm, top sponge and bottom sponge are arranged in the cylindrical air chamber, glycerol phosphate mixed liquid is injected into the top sponge and the bottom sponge, and the diameters of the top sponge and the bottom sponge, thickness is 5cm, the bottom sponge set up in the downside of top sponge, the distance of bottom sponge apart from soil is 5cm, the bottom of static case is provided with the case seat, the side of static case is provided with temperature detection hole and bleeder valve, static incasement portion is provided with two fans, the case seat buries in soil, 5cm in soil is inserted to the bottom of case seat, and the case seat top is provided with dark 2.5cm, wide 2 cm's sealed basin.
2. The device for collecting the odor emission of the soil after the covering and burying of the tail vegetables according to claim 1, is characterized in that: the cylindrical air chamber is made of polyvinyl chloride or methyl methacrylate.
3. The device for collecting the odor emission of the soil after the covering and burying of the tail vegetables according to claim 1, is characterized in that: the rain shielding plate is made of polyvinyl chloride or methyl methacrylate.
4. The device for collecting the odor emission of the soil after the covering and burying of the tail vegetables according to claim 1, is characterized in that: the static box is a 50cm multiplied by 50cm square and is made of 3mm methyl methacrylate.
5. The device for collecting the odor emission of the soil after the covering and burying of the tail vegetables according to claim 1, is characterized in that: the box base is a square of 50cm multiplied by 50cm and is made of stainless steel.
6. The detection method of the device for collecting the emission of soil odor after the covering and burying of the tail vegetables according to any one of claims 1 to 5, characterized by comprising the following steps: taking two 500ml plastic bottles, respectively adding 300ml of 1mol/L potassium chloride solution into the two plastic bottles, taking out the top sponge and the bottom sponge after ammonia gas collection, respectively putting the top sponge and the bottom sponge into the two 500ml plastic bottles, completely immersing the sponges in the plastic bottles, respectively oscillating for 1h, determining the content of ammonium nitrogen in a leaching solution, eluting the ammonia gas absorbed by the sponges, and determining soil emission and the content of ammonia gas in air by an indigo spectrophotometry; 3L of gas in the standing box is extracted by a 500ml syringe, then the gas is uniformly injected into an absorption bottle filled with absorption liquid, and the content of hydrogen sulfide discharged from the soil is measured by a methylene blue spectrophotometry.
7. The detection method of the device for collecting the emission of soil odor after the covering and burying of the tail vegetables according to claim 6, wherein the device comprises: the absorption liquid is cadmium hydroxide-polyvinyl alcohol ammonium phosphate suspension.
CN202010994531.2A 2020-09-21 2020-09-21 Device for collecting odor emission of soil after covering and burying of waste vegetable soil and detection method Pending CN112082826A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114778172A (en) * 2022-03-26 2022-07-22 江苏景瑞农业科技发展有限公司 Soil sampling device for agricultural engineering
CN115235834A (en) * 2022-07-27 2022-10-25 生态环境部南京环境科学研究所 Equipment and method for evaluating repaired pesticide field based on smell peculiar smell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114778172A (en) * 2022-03-26 2022-07-22 江苏景瑞农业科技发展有限公司 Soil sampling device for agricultural engineering
CN115235834A (en) * 2022-07-27 2022-10-25 生态环境部南京环境科学研究所 Equipment and method for evaluating repaired pesticide field based on smell peculiar smell

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