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Method for synergistic sterilization and disinfection and anti-adhesion of ultraviolet sterilization corrosion inhibitor

A technology of anti-biological adhesion, sterilization and disinfection, applied in the direction of disinfection, gasification substances, irradiation, etc., can solve the problems of difficult to achieve sterilization effect, decrease of mechanical strength, increase of environmental load, etc., to reduce the concentration of use and the intensity of ultraviolet radiation and time, inhibit the formation of biofilm, and improve the effect of killing efficiency

Pending Publication Date: 2021-11-26
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air stays in the air conditioner for a short time, and the types of microorganisms are diverse and large, so the sterilization effect of the air conditioner under ultraviolet conditions is very poor and needs to be improved.
At the same time, long-term high-intensity ultraviolet radiation will accelerate the aging of some air-conditioning polymer materials, causing yellowing, brittleness, cracking, surface tarnishing, and mechanical strength decline, which will shorten the service life of the air conditioner.
Long-term ultraviolet radiation will promote microbial variation and bring great difficulties to microbial control
[0005] The use of fungicides alone ca

Method used

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  • Method for synergistic sterilization and disinfection and anti-adhesion of ultraviolet sterilization corrosion inhibitor
  • Method for synergistic sterilization and disinfection and anti-adhesion of ultraviolet sterilization corrosion inhibitor
  • Method for synergistic sterilization and disinfection and anti-adhesion of ultraviolet sterilization corrosion inhibitor

Examples

Experimental program
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Effect test

Example Embodiment

[0029] Build an antimicrobial disinfection and offset test device in Example 1 embodiment in situ

[0030] Structures such as figure 1 Sterilization and antimicrobial testing device shown offset, left is a schematic view of the liquid sterilant Synergistic Inhibition UV disinfection device, UV lamp located on one side of the test solution, the test solution facing, UV light line is perpendicular to the test solution, UV lamp and control the amount of bacteria in the test solution between 5-50 cm, bactericides corrosion test microorganism was added directly to the broth, the various regulatory inhibition concentration of sterilizing agent is 5-300mg / L. For UV schematic right sterilant vapor sterilization apparatus synergistic corrosion inhibition, the UV lamp is located in the surface layer of the test material, UV light a line perpendicular to the surface of the test material, control between the UV lamp and the surface distance 5-50cm test material. The fungicide disposed inter...

Example Embodiment

[0031] Experimental case

[0032] Single benzalkonium chloride, ammonia sterilization effect under test (BKC) Condition

[0033] Sterile operating table, was charged to the clear glass 6 500mL 100mL physiological saline, respectively, was added 1mL of Pseudomonas aeruginosa bacteria, fungicides were added to a concentration of benzalkonium chloride ammonia were 0mg / L , 10mg / L, 20mg / L, 40mg / L, 60mg / L and 80mg / L, the culture after 12h, the test solutions were 1: 1000 dilution, and then by plates: 1, 1: 10, 1: 100, counting colonies were cultured for 24 hours, recording the number of colonies on the plates.

[0034] Ammonia benzalkonium chloride (BKC), and ultraviolet (UV) synergistic bactericidal effect test

[0035] Sterile operating table, was charged to the 500mL transparent glass 4, respectively, 100mL physiological saline, was added 2mL of Pseudomonas aeruginosa bacteria, four blank control systems, ultraviolet irradiation, 10mg / L benzalkonium chloramines, benzalk...

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Abstract

The invention belongs to the technical field of anti-microbial fouling control, and particularly relates to a method for synergistic sterilization and disinfection and anti-adhesion of an ultraviolet sterilization corrosion inhibitor. The method comprises the following steps of: placing a substrate material in a corrosion inhibition bactericide atmosphere, and irradiating the substrate by using ultraviolet light at the same time. Compared with a single bactericide or an ultraviolet sterilization treatment method, the method provided by the invention has the advantages that the synergistic effect of the bactericide and the ultraviolet light is utilized, so that the killing efficiency of microorganisms is remarkably improved, the adhesion density of the microorganisms on the surface of the material is remarkably reduced, and the formation of a biological film on the surface of the material is inhibited. Meanwhile, on the premise of improving the sterilization efficiency, the use concentration of the bactericide and the ultraviolet irradiation intensity and time are reduced, the pollution of the bactericide to the environment is reduced, the service life of an ultraviolet lamp is prolonged, and the method has an important application prospect in the fields of sterilization and disinfection and anti-adhesion fouling of microorganisms such as air conditioning systems and marine ships.

Description

technical field [0001] The invention belongs to the technical field of anti-microbial fouling control, and in particular relates to a method for synergistic sterilization and anti-biological adhesion of ultraviolet bactericidal corrosion inhibitors. [0002] technical background [0003] Air-conditioning air ducts, cooling water, and the inside and outside of air-conditioning units are the breeding grounds and sources of transport for many microorganisms. In an air-conditioned environment, the airtightness is high, the air fluidity is poor, the self-cleaning ability is reduced, and the temperature and humidity are suitable. The air is susceptible to microbial contamination, causing the spread of respiratory infectious diseases. Affected by the "SARS" epidemic, coupled with the frequent occurrence of "air-conditioning disease", air-conditioning has also become a healthy trend, and air-conditioning with bactericidal function has gradually appeared in people's field of vision. ...

Claims

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Application Information

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IPC IPC(8): A61L2/10A61L9/20A61L2/18A61L9/00A61L2/20A61L9/015A61L101/32
CPCA61L2/10A61L9/20A61L2/18A61L9/00A61L2/20A61L9/015A61L2101/32A61L2209/21
Inventor 刘宏伟柳海宪金正宇
Owner SUN YAT SEN UNIV
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