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Livestock and poultry dung or urine deodorizing method and uses thereof

A technology for excrement, livestock and poultry, which is applied in deodorization of livestock and poultry excrement and its application field, can solve the problems that microbial deodorants cannot be stored for a long time, secondary pollution of chemical deodorants, and reduce the deodorization effect, etc., to achieve Long-lasting deodorizing effect, reducing odor, and improving physical and chemical properties

Inactive Publication Date: 2009-12-02
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the high cost of chemical deodorants and plant deodorants, chemical deodorants may cause secondary pollution, and the cost of microbial deodorants is lower than the former two, mainly because of fewer bacteria and lower fermentation costs Less bacteria will reduce the deodorizing effect
In addition, microbial deodorants cannot be stored for a long time, are difficult to transport over long distances, and their application is limited

Method used

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  • Livestock and poultry dung or urine deodorizing method and uses thereof
  • Livestock and poultry dung or urine deodorizing method and uses thereof
  • Livestock and poultry dung or urine deodorizing method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Research on the Influence of Peroxidase Concentration on Deodorizing Effect

[0014] 1) Weigh different horseradish peroxidase powder preparations (250 U / mg), and prepare 50 mL of peroxidase solutions with different concentrations (0.1-3.0 U / mL) with water, and set aside.

[0015] 2) Take 367mL of concentrated hydrogen peroxide solution (30%) and prepare 1100mL of a 10% dilute solution with water for later use.

[0016] 3) Prepare 24 plastic buckets with lids (22cm high, 18cm inner diameter at the lower part, and 30cm inner diameter at the upper part), mix pig feces and urine evenly to form a paste, and put 3L in each bucket.

[0017] 4) Spray 15mL of the above-mentioned peroxidase solution of different concentrations on the feces and urine of 21 buckets, and then spray 15mL of dilute hydrogen peroxide solution, and make parallel measurements in groups of 3. Only 30 mL of distilled water was sprayed on the feces and urine of the other 3 buckets as a control....

Embodiment 2

[0021] Embodiment 2: Research on the Influence of Hydrogen Peroxide Solution Concentration on Deodorizing Effect

[0022] 1) Weigh horseradish peroxidase powder preparation (250U / mg), and prepare 350mL peroxidase solution with a concentration of 1.0U / mL with water, and set aside.

[0023] 2) Take 1-10 mL of concentrated hydrogen peroxide solution (30%) in different volumes, and prepare 50 mL of dilute solution with a concentration of 0.5%-6% with water respectively, and set aside.

[0024] 3) Prepare 24 plastic buckets with lids (22cm high, 18cm inner diameter at the bottom, and 30cm inner diameter at the top). Mix pig manure and urine evenly to form a paste, and put 3L in each bucket.

[0025] 4) Spray 15mL of peroxidase solution on the feces and urine of 21 buckets, and then spray 15mL of dilute hydrogen peroxide solution of different concentrations, and make parallel measurements in groups of 3. Only 30 mL of distilled water was sprayed on the feces and urine of the other...

Embodiment 3

[0030] Embodiment 3: the study of the impact of calcium peroxide powder of different quality on deodorizing effect

[0031] 1) Weigh horseradish peroxidase powder preparation (250U / mg), and prepare 350mL peroxidase solution with a concentration of 1.0U / mL with water, and set aside.

[0032] 2) Prepare 24 plastic buckets with lids (22cm high, 18cm inner diameter at the lower part, and 30cm inner diameter at the upper part), mix pig feces and urine evenly to form a paste, and put 3L in each bucket.

[0033] 3) Spray 15mL of peroxidase solution on the feces and urine of 21 water buckets, and then spray 75% calcium peroxide powder with different masses, and do parallel measurement in groups of 3. Only 15 mL of distilled water was sprayed on the feces and urine of the other three buckets as a control. Put the cap back on immediately after spraying the deodorizing solution. After 2 hours, 10mL of feces and urine mixture was analyzed for the concentration of several odor components...

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Abstract

A livestock and poultry excrement and urine deodorization method and application thereof. It is characterized in that 0.5U / mL~1.5U / mL peroxidase solution and 1%~4% hydrogen peroxide solution are first prepared, and the peroxidase solution is sprayed on livestock and poultry excrement (per liter of feces and urine spraying 3mL), and then spray an equal volume of hydrogen peroxide solution, or spray 75% calcium peroxide powder (0.3g-0.5g per liter of feces and urine). The use of peroxidase can catalyze the oxidation of aromatic compounds into free radicals and decompose and remove them in a wide range of temperature, pH value, pollutant concentration and salinity, using hydrogen peroxide or calcium peroxide as electron acceptors The principle is to remove the odor produced by the excrement and urine of livestock and poultry farms. The deodorization method is simple, does not require any complicated facilities, does not need to increase staff and equipment, has no investment costs, and has low operating costs. The deodorization effect is remarkable and long-lasting, and will not cause secondary pollution. It has broad application prospects in the low-profit industry of aquaculture.

Description

technical field [0001] The invention relates to a method for deodorizing livestock and poultry manure and its application. Background technique [0002] With the rapid development of livestock and poultry breeding production, especially the development of large-scale breeding, a large number of livestock and poultry wastes are produced, causing the contradiction between the development of livestock and poultry industry and environmental pollution to become increasingly prominent. The main pollutants in the livestock and poultry breeding industry are feces and urine and the odor produced by anaerobic fermentation. The main components of odor are volatile fatty acids, indole, phenolic compounds, ammonia, volatile amines, volatile sulfur compounds, etc. [0003] The investment and operation costs of large-scale deodorization devices are high, and the effect is obvious for point sources with high emission concentrations. However, for unorganized emission sources such as livest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
Inventor 叶芬霞朱瑞芬李颖
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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