- << Merit of the ultraviolet rays sterilization >>
- Required for sterilization Irradiance level
- Cold cathode U tube LHGU / LHGW series
- Cold cathode mini U tube LHGU-M Series
Compact facilities, the maintenance cost is cheap
Simpl , time shortening, lowcost
Effective for every species of bacteria
Durability bacteria less
Sterilize it at normal temperature
Do not let an agenda change in quality
<< Merit of the ultraviolet rays sterilization >>
Sunburns change by ultraviolet rays and the action were known for a long time, but it did not advance to the application to the public for only approximately 20 years that the mechanism was elucidated because in front of and the history were shallow though an effect was very high.
However, wide demand is anticipated from the industry to home while the use in various fields is expected now from the plane of the safety and the economy, and the things that the identification of infection courses such as swine flu virus, the O157 is difficult increase.
A sterilizing effect is high in the ultraviolet rays, and I reach 1,600 times of wavelength 350nm of the direct rays of the sun, and the wavelength 260nm neighborhood can sterilize all microbes from “a virus” to “mold” in a short time in particular.
There is not remaining of the poison after the sterilization, and the ultraviolet rays to use do not almost penetrate it other than polyethylene because transmission power is very weak. I peep out by the direct naked eye in a short time, and please do not iiradiate skin directly.
The sterilization effect of ultraviolet rays
1.As for the disinfection to the microbe by ultraviolet rays, ultraviolet rays of complementary wavelength 253.7nm
are absorbed by the nucleic acid of the living bodies, and what lose a restoration function by a chemical change is caused,
and damaging it becomes an established theory.
2.When It demand a sterilization effect by ultraviolet rays, quantity of ultraviolet irradiation is defined by incidence energy,
and it is expressed in the product (μ W / a sec / c square meter) of (sec) as custom in ultraviolet rays illumination
(a μ W / c square meter) and irradiation time.
3.The judgment of the effect defines that sterilization and the cell of the one of the mold or cell group
forms one macro colony as survival and expresses it at survival rate or sterilization rate. It is as an aim of the
one of the sterilization effect judgments for the microbes which the sensitivity for ultraviolet rays uses unlike,
specific sterilization rate and the list of necessary ultraviolet rays exposure dose by a microbe, and become an object.
Type of the water sterilizer
The water sterilization is classified roughly into in-side style and out-side style by an irradiation method.
1.It is a method to irradiate glass penetrating ultraviolet rays or running water in the Teflon resin pipe from the outside,
and out-side style does not have to shut it tightly, and, as for the structure, it is easy, but use efficiency of the ratio
ultraviolet radiation light lowers in in-side style.
2.As for in-side style, a dip does a double tube which wrapped a sterilization lamp in a pipe out of quartz more-type
sterilization lamp during a current, and I am underwater, and a large quantity of water processing is enabled in a high,
compact device in out-side style because it is a method to emit ultraviolet rays.
Poblems of other sterilization methods
- Heat sterilization
It let bacteria sterilization agenda change in quality.
An energy cost is high expensive.
By a cooling process, bacteria are easy to stick.
It is not suitable for heat-resistant bacteria.
- Sterilization with the medicine
There is residual property.
Second processing is necessary.
It generate resistant bacteria.
- Filter sanitization
Exchange frequency is demanded.
Running cost is high expensive.
Required for sterilization Irradiance level
The principle of cleaning and modification by ultraviolet
Ultraviolet rays are irradiated to the organic irradiated object, and then cut the chemical bond of the surface layer.
Active oxygen is separated from the generated ozone with ultraviolet light, attached to a molecule of the cut surface layer and convert it to a highly hydrophilic functional group.
By the action of active oxygen separated from ozone generated by the action of ultraviolet radiation, organic pollutants and volatile H2O, CO, CO2, NO2 and removed by decomposing changes made to such.
To overcome the technical difficulties, and ultra-compact, high-output. It now can be applied in many fields.
Cold cathode U tube LHGU / LHGW series
Cold cathode mini U tube LHGU-M Series