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Sustained-release ozone sol and preparation method applications thereof

An ozone and slow-release technology, applied in the fields of botanical equipment and methods, applications, and chemicals used for biological control, can solve the problems of high cost of pests and diseases, volatile decomposition, unstable ozone, etc., to prolong the sterilization time, Reduced dosage and long duration of action

Active Publication Date: 2013-12-25
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a slow-release ozone sol and its preparation method and application, which can not only overcome the defects of high cost and serious pollution of the traditional application of pesticides to control pests and diseases, but also solve the problem of unstable and easily volatile decomposition of ozone, and effectively eliminate Eliminate plant diseases and insect pests

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Dissolve 0.05g of acetic acid in 1 liter of tap water, then add 0.1g of polyaspartic acid, stir at a speed of 30-50r / min to dissolve and disperse evenly; pass the ozone gas generated by the ozone generator into it, so that When the ozone reaches 5mg / L, a slow-release ozone sol is formed, in which polyaspartic acid is 0.1g / L and acetic acid is 0.05g / L.

[0016] In addition, directly pass the ozone gas generated by the ozone generator into 1 liter of tap water to make the ozone reach 5 mg / L.

[0017] Place the slow-release ozone sol and ozone-containing tap water at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 20 hours, 24 hours, and 48 hours to measure the ozone concentration. Ozone concentration after planting is 2.5mg / L, and the half-life of ozone in tap water is 15 minutes, and in the slow-release ozone sol of the present invention, ozone concentration is respectively 4.5mg / L after 2 hours, 4mg / L after 6 hours, 12 hours After 3.5mg / L, 2.5m...

Embodiment 2

[0019] Dissolve 0.5g of citric acid in 1 liter of tap water, then add 5g of polyethylene glycol, stir at a speed of 30-50r / min to dissolve and disperse evenly; pass the ozone gas generated by the ozone generator into it to make the ozone Reaching 30mg / L, a slow-release ozone sol is formed, in which polyethylene glycol is 10g / L and citric acid is 0.5g / L.

[0020] In addition, the ozone gas produced by the ozone generator is directly passed into 1 liter of tap water to make the ozone reach 30mg / L.

[0021] Place the slow-release ozone sol and ozone-containing tap water at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 20 hours, 24 hours, and 48 hours to measure the ozone concentration. Ozone concentration after kind is 12.5mg / L, and the half-life period of ozone in it is less than 15 minutes, and ozone concentration is respectively 25.5mg / L after 2 hours, 22.5mg / L after 6 hours, 12 minutes in slow-release ozone sol of the present invention. 18mg / L afte...

Embodiment 3

[0023] Dissolve 0.5g of lactic acid in 1 liter of tap water, then add 0.5g of sodium alginate, stir at a speed of 30-50r / min to dissolve and disperse evenly; pass the ozone gas generated by the ozone generator into it to make the ozone reach 10mg / L to form a slow-release ozone sol, including 0.5g / L sodium alginate and 0.5g / L lactic acid.

[0024] In addition, the ozone gas generated by the ozone generator is directly passed into 1 liter of tap water to make the ozone reach 10mg / L.

[0025] Place the slow-release ozone sol and ozone-containing tap water at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 24 hours, 36 hours, and 48 hours to measure the ozone concentration. Ozone concentration after seeding is 4.8mg / L, and the half-life of ozone in tap water is close to 15 minutes, and ozone concentration is respectively 8.6mg / L after 2 hours, 8mg / L after 6 hours, and 12 hours in the slow-release ozone sol of the present invention. After 7mg / L, 5.5mg / L af...

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PUM

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Abstract

The invention provides a sustained-release ozone sol. The slow-released ozone sol comprises ozone with the concentration of 0.5-30mg / L, peptizator with the concentration of 0.1-10mg / L and stabilizer with the concentration of 0.01-1g / L. Through the sustained-release ozone sol, the half life of ozone in water can be improved by more than 60 times and ozone can be slowly released; after being applied to agriculture, the sustained-release ozone sol can safely and efficiently prevent soil-borne disease of crops without residues and also can effectively prevent the corrosion of gaseous ozone to the metal skeleton of facility agriculture greenhouse. The preparation method is simple and is easy and convenient to operate.

Description

technical field [0001] The invention relates to a slow-release ozone sol and a preparation method thereof, and the slow-release ozone sol is applied to the prevention and control of crop diseases, especially the prevention and control of soil-borne diseases. Background technique [0002] With the improvement of living standards, people's requirements for food safety are getting higher and higher, and the problem of pesticide residues has attracted more and more attention. Avoiding pesticides to solve diseases and insect pests has become a difficult problem in modern agriculture. [0003] Due to the extensive use of chemical inputs such as pesticides and the continuous cropping of crops for many years, soil-borne diseases are very serious in many places in my country, and this problem is particularly prominent in agricultural protected areas such as greenhouses and greenhouses. Long-term use of chemical pesticides will not only cause food safety hazards, but also cause pathog...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01N25/22A01N25/04A01P1/00A01P3/00
Inventor 易欣欣张鹏陈毅明杜相革刘一倩高秀芝
Owner BEIJING UNIV OF AGRI
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