What are the commonly used disinfection methods, and what are the commonly used disinfection methods

Disinfection refers to the use of physical or chemical methods to eliminate or kill pathogenic microorganisms on the vector to the point of harmlessness. Disinfection is aimed at pathogenic microorganisms rather than all microorganisms, and only requires that harmful microorganisms be reduced to a harmless degree, but not that all microorganisms are killed. Common disinfection methods generally fall into three categories.

Physical disinfection.

It refers to the method of using physical factors to kill or eliminate pathogenic microorganisms and other harmful microorganisms. a. Dry heat antibacterial method cauterization and sterilization method: suitable for worthless items.

Hot gas sterilization: Reach a temperature of 160 °C and maintain this temperature for one hour. For example, glass syringes.

b. Damp heat sterilization method.

Boiling method: It does not kill the spores, and the hot water must cover the object. Boiled water for five minutes. Steam sterilization: The use of an autoclave.

Chemical disinfection.

Refers to the method of using chemical drugs to kill disease-causing microorganisms. These chemicals may be liquids, solids or gases. When using, it should be noted that the utensils must be washed and wiped with mild soapy water before being disinfected. The concentration of the chemical drug, the disinfection time, must be correct to achieve the best results.

When disinfecting objects, the following should be noted:

Objects must be washed and wiped with warm soapy water before being disinfected. Pay attention to the concentration of the disinfectant solution and the time it takes to soak in. If chemical disinfection is used, the disinfected object should be rinsed with sterile water or normal saline before it can contact the first tissue.

Heating can improve sterilization efficiency. During the disinfection process, it is not advisable to add unsterilized items. If the sterilized items are treated with dressing forceps, such as boiling or chemical sterilization, all items must be fully immersed in the solution.

There are three forms of disinfection. The first is solar disinfection.

The second is the boiling sterilization method.

The third is the drug disinfection method. The ultraviolet rays in sunlight have a good natural sterilization effect, and the purpose of disinfection can only be achieved when the items are directly exposed to sunlight for about 6 hours and are not separated from the glass windows.

Spray or splash. Prepare the disinfectant into a solution of a certain concentration, spray the place that needs to be disinfected with a sprayer, or directly splash the disinfectant on the place that needs to be disinfected, such as disinfection with chickens. Wipe method.

Soak a cloth in disinfectant to wipe the disinfected object, such as the incubator and cage. Immersion method. Soak the sterilized items in the disinfectant solution, such as eggs, troughs, dissecting tools and production tools.

Fumigation. Formaldehyde is commonly used with potassium permanganate to fumigate and disinfect closed chicken houses and incubators. Drinking water method.

Add an appropriate amount of disinfectant to the drinking water of chickens to kill pathogenic microorganisms in the water. The drugs selected for drinking water disinfection should be non-toxic, efficient, broad-spectrum and inexpensive. Bleaching powder, potassium permanganate, peracetic acid, etc. are often used for drinking water disinfection of chickens.

Mechanical disinfection].

Bacteria are removed from or from objects by rinsing, brushing, wiping, wiping, sweeping, ventilating and filtering. Dramatically reduce its number and reduce the chance of human infection with germs.

High temperature disinfection] high temperature disinfection is one of the most commonly used disinfection methods, pressure cookers, cooking pots, and steamers used for cooking at home are all good heating sterilizers, high temperature can make the protein coagulation and denaturation of bacteria, and general disinfection is appropriate to boil for about 10 minutes.

Ultraviolet disinfection].

Ultraviolet disinfection is most commonly used to use ultraviolet disinfection in sunlight to dry items that are not conducive to the survival of pathogens, and are used for general clothing, bedding and other items.

Incineration] Incineration is a simple and thorough sterilization method, which can usually be used to dispose of clothing used by infected people, and contaminated weeds and animal carcasses should also be incinerated by incineration, but it needs to be carried out in a dedicated incinerator.

Hot and dry air sterilization].

Hot dry air sterilization is when a sterilized item is heated in dry air and sterilized at a temperature sufficient to kill bacteria.