Method and device for measuring volatile quantity of ammonia gas in livestock and poultry manure

A technology of volatilization and ammonia, applied in the biological field, can solve the problems of difficulty in measuring ammonia in cattle barn, time-consuming and laborious, and high cost, and achieve the effects of accurate ammonia volatilization, low cost, and simple and convenient environment.

Inactive Publication Date: 2019-12-03
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the conventional measurement methods are carried out in cattle farms, but due to the physical and chemical characteristics of ammonia gas, and the cattle farms are generally naturally ventilated barns, this brings great difficulty to the determination of ammonia in barns
And the measurement in the cowshed is time-consuming and laborious, and it costs a lot

Method used

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  • Method and device for measuring volatile quantity of ammonia gas in livestock and poultry manure
  • Method and device for measuring volatile quantity of ammonia gas in livestock and poultry manure
  • Method and device for measuring volatile quantity of ammonia gas in livestock and poultry manure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 100 mL of 0.05 mol / L H 2 SO 4 Solution, add 50g of feces and 30g of urine respectively in discharge chamber 2 and mix well. The water bath 6 adjusts the temperature of the excrement and urine in the discharge chamber 2 to 20° C., and the flow meter is adjusted to a flow rate of 0.5 L / min. The fermentation time lasts 72h, and the H in the outlet acid absorber 3 is replaced and collected at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h after the fermentation starts. 2 SO 4 solution. After two experiments, the first experiment determined that the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 33.3, 69.7, 104.3, 119.1, 136.1, 167.3 , 187.2, 164.5, 127.6 (mg). In the second experiment, the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 13.6, 39.1, 47.6, 79.4, 87.9, 130.4, 158.8, 102.1, 85.1 (mg).

Embodiment 2

[0036] Add 100 mL of 0.05 mol / L H 2 SO 4 Solution, add 50g of feces and 30g of urine respectively in discharge chamber 2 and mix well. The water bath 6 adjusts the temperature of the excrement and urine in the discharge chamber 2 to 30° C., and the flow meter is adjusted to a flow rate of 0.5 L / min. The fermentation time lasts 72h, and the H in the outlet acid absorber 3 is replaced and collected at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h after the fermentation starts. 2 SO 4solution. After two experiments, the first experiment determined that the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 96.7, 159.6, 206.4, 310.7, 297.6, 252.8 , 213.3, 181.7, 105.3 (mg). In the second experiment, the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 87.2, 107.4, 132.7, 231.7, 192.2, 181.7, 155.3, 144.8, 86.9 (mg). ...

Embodiment 3

[0038] Add 100 mL of 0.05 mol / L H 2 SO 4 Solution, add 50g of feces and 30g of urine respectively in discharge chamber 2 and mix well. The water bath 6 adjusts the temperature of the excrement and urine in the discharge chamber 2 to 40° C., and the flow meter is adjusted to a flow rate of 0.5 L / min. The fermentation time lasts 72h, and the H in the outlet acid absorber 3 is replaced and collected at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h after the fermentation starts. 2 SO 4 solution. After two experiments, the first experiment determined that the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 216.8, 248.1, 324.4, 337.1, 379.2, 305.5 , 165.9, 81.6, 84.2 (mg). In the second experiment, the amount of ammonia gas discharged per square meter per hour at the nodes of 1h, 3h, 6h, 12h, 24h, 36h, 48h, 60h, and 72h was 170, 238.6, 297.1, 321.3, 323.9, 247.5, 184.3, 134.3, 52.6 (mg).

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Abstract

The invention provides a method and device for measuring a volatile quantity of ammonia gas in livestock and poultry manure, and relates to the field of biology. The device comprises an inlet acid absorber, a discharge chamber loaded with a manure mixture, an outlet acid absorber, a flowmeter and a vacuum pump, which are sequentially connected along a gas inlet direction; the inlet acid absorber and the outlet acid absorber are filled with H2SO4 solution; a catheter communicated with the air is arranged on the inlet acid absorber, and the catheter extends into the H2SO4 solution of the inlet acid absorber; and a catheter of the discharge chamber, which is connected with the outlet acid absorber, extends into the H2SO4 solution of the outlet acid absorber.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a method and a device for measuring ammonia volatilization in livestock and poultry manure. Background technique [0002] Ammonia is one of nitrogen-containing compounds and one of the main harmful gases in the atmosphere, which will have a series of adverse effects on the environment, humans and animals. At present, the conventional measurement methods are carried out in cattle farms, but due to the physical and chemical characteristics of ammonia gas, and the cattle farms are generally naturally ventilated barns, this brings great difficulty to the determination of ammonia in barns . And the measurement in the barn is time-consuming and laborious, and the cost is high. The controllability of the gas chamber simulation device for environmental factors can be used to measure the emission of ammonia and study the influence of some important factors on the emission of ammonia. It ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/20G01N33/48B01D53/78B01D53/58
CPCB01D53/58B01D53/78G01N7/20G01N33/48
Inventor 孙小琴禄瑶石志芳侯宇赵辛
Owner NORTHWEST A & F UNIV
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