What is UV C and Ozone(O3)?
Learn about sterilization, we have some good data on UV and ozone, and I would like to share it. (Additional review is needed to confirm that the following data is correct through thesis)
The blue text is my idea. Please note that this may be wrong.
Among the various wavelengths of ultraviolet rays, ultraviolet rays of 253.7 nm have a sterilizing power of 1,600 times that of direct sunlight, and this is called a'sterilization line'. This sterilization line is absorbed by thymine among the factors of DNA in the cell and destroys the arrangement of the DNA, causing loss of gene function and sterilization.
The structure of DNA that exhibits function as a gene is called a double helix structure. (--> It is necessary to check if it is harmful to the human body)
Among the four bases (Athenin (A), Guanine (G), Cytosine (C), and Thymine (T)) that connect between the double helix structures of DNA, they are absorbed by thymine and become completely different genes, preventing proteins from forming. It is sterilized. In particular, this action has the advantage of being quicker than other sterilization methods (chemical treatment, high fever) and free of residual substances, since it can be performed instantaneously with'light'.
Ozone Lamp has the same sterilization line (253.7nm) output as Germicidal Lamp, but unlike normal UV lamps, it also emits 184.9nm of ultraviolet rays that generate ozone, so it is also capable of strong deodorizing effect and sterilization of non-irradiated surfaces that ultraviolet rays cannot.
(If you read the following, the contents of this article include some of the short wavelengths of light from the sun (UV, visible light, infrared rays, etc.) that reach the Earth from natural systems (UV that has dangerous UV rays or less) It is said that ultraviolet rays can react with oxygen to produce ozone. Is this real?)
In general, ozone generators that discharge at high voltage and high frequency generate harmful nitrogen oxides simultaneously in proportion to the amount of ozone, whereas HUV Series ozone lamps generate ozone with pure'light', so there is no generation of harmful substances. In addition, the general ozone generator has a reduced lifespan due to dust and humidity and poor safety due to the use of high voltage, while the HUV Series ozone lamp performs all functions in a vacuum tube, so durability is not affected by dust and humidity and operates with rated AC power. Excellent safety.
UV energy from Ozone lamps is divided into two wavelengths. That is, 185nm and 254nm.
185nm energy is absorbed by oxygen and produces ozone that oxidizes organic substances.
254nm energy is absorbed by organic substances and increases the molecular activity of substances to react with ozone. In low pressure lamps, mercury discharge also produces energy at other wavelengths. Compared to the 253.7nm line, it produces a different amount of energy at 185nm. This action can produce ozone from the air we breathe. Ozone is the highest activated oxygen, which acts as an excellent odor removal and allergen suppressant and also destroys micro organisms. The strength of ozone is that it is a gas that can pass even parts that cannot be penetrated by UV. Ozone production by low pressure lamps depends on the transmittance of the glass tube.
Ozone occurs naturally in the atmosphere. Ozone is a compound through oxidation with a tertiary oxygen atom. Ozone is a blue, water-soluble unsafe gas with a very special odor that can be easily recognized. Ozone is well known as a more powerful oxidizing agent than elemental fluorine. Ozone is also the most potent in water treatment systems. Ozone is a oxidant that inhibits bacteria and viruses 3,125 times faster than chlorine and is also 50% more potent.
Control of common bacteria, ie viruses, fungi, mold, staphylococcus aureus, cysts, as well as E. coli (E. coli) and fecal E. coli can be controlled.
The name ozone comes from a special odor, and also from the Greek word "ozien" which means odor. Ozone has been used for water treatment since 1893 and has been used for food storage as well as disinfection and air purification and detoxification.
Ozone floats freely in air or water. When ozone circulates and encounters pathogens in the air, these tertiary oxygen molecules separate themselves from ozone, attaching themselves to contaminants to make them safe compounds. Ozone is a natural way of self-cleansing our environment.
The atomic rings of ozone and oxygen are similar to the atomic rings of water. Oxygen atoms are bound to form ozone, and tertiary oxygen atoms are separated to oxidize pollutants.
Almost 50 years ago, UV rays have been proven effective in destroying bacteria in water. Ultraviolet C is located in the optical spectrum between 2,000 and 3,000 angstroms of wavelength. In order to eliminate microbes, fungi, viruses, and fermentation bacteria, the sterilization area in 2537 OMSTRONG (=254 nm) is most effective.
The intensity of ultraviolet light is expressed in microwatts per second, generated per square centimeter.
And the output of the lamp product is represented by the volume of water to be treated, the exposed time and the wattage.
Pathogenic microbes that can cause disease in most waters are sterilized (10 mW) at 10,000 micro W per square centimeter per second.
About 6,500 for cholera, 4,000 for dysentery, 8,000 for infectious hepatitis, 6,000 for infectious jaundice, and 4,100 to -->10 mW typhoid fever. To do. (Experiment is required to see how much time is required).
The biological reaction of ozone is the result of the double bond of fatty acids in the cell wall of the bacteria and the reaction of the outer shell of the protein surrounding the nucleic acid of the virus with the thin film. In bacteria, oxidation is caused by the leakage of cell contents and melting, resulting in changes in intracellular solubility. Ozone attacks these cell walls and removes thin cell membranes, creating a superstructural structure of the tissue. In simpler terms, unstable electrons from ozone attack the thin-film holes. This is a virus, bacteria. It is caused by attack of cell walls of fermentation bacteria, non-ideal cell tissue, or by cell lysis. Eventually, it inhibits and destroys the enzymes of microbes.
It can be said that ozone has a complete effect or no complete effect on the condition of bacteria elimination.
Ozone has been proven to sterilize only a few microbes per liter. This destroys all pathogens and even microbes that nutrient the decaying organics in the water. Moisture, temperature, pH, ozone concentration, and type and time of organic matter determine the mortality rate for pathogens. The action of ozone gas in water is very instantaneous. After oxidation, ozone returns to its original form of oxygen, leaving no toxic by-products or residues.
Ozone oxidizes not only synthetic substances (nitrogen compounds, chlorobenzene compounds, synthetic detergents, herbicides, synthetic pesticides) but also natural organic compounds such as organic compounds (acetic acid, hydroxyl). Ozone also oxidizes non-organic substances such as iron, magnesium, heavy metals, cyanides, sulfides and nitrides in water. Washing fruits or vegetables in ozone-treated water will lead to poor levels of lead, as well as other soil and air pollutants. Ozone can slow down the decay rate by removing ethylene gas and bad odor from decay in fruits and vegetables.
Ozone occurs naturally in our environment.
Ozone also occurs during thunder and lightning. Natural ozone in the air blocks harmful UV rays that cause skin cancer.
Natural ozone concentration levels at sea level are 0.003 to 0.005 ppm.
This level is somewhat higher in the mountainous and northern regions. It may vary depending on the latitude.
This also changes with the seasons, as the natural production of ozone depends on the amount of solar energy. The amount of ozone drops in winter in polar regions where sunlight is insufficient. Ozone cannot be produced without oxygen.
Ozone is safe for humans at low levels. However, it can be harmful at high concentrations, but since 1885 there have been no direct deaths from ozone. Ozone has not been identified as a carcinogen by OSHA, NTP or IARC. The human stimulus boundary is about 0.06 ppm. (Hazardous health when continuously exposed at low levels
There is no evidence that it can be crazy. ) For 8 hour exposure, the EPA level is 0.1 ppm, the FDA and ASHRAE levels are 0.05 ppm, and the OSHA is 0.1 ppm. And ACGIH (American Conference of Governmental industrial hygienists) limits the exposure to 0.1 ppm without side effects for 8 hours of exposure. Ozone is safe to use at constant concentrations between 0.01 and 0.045 ppm. If you need a higher level in special cases, you can control it to work only at night or when there are no people for safety.
Indeed, the main benefit of using ozone is to reduce the microbes that cause a variety of diseases (myctobacilli, filamentous fungi, bacteria, spore fungi, and single-cell bacteria that spoil other fresh food). Ozone production eliminates nitrogen. This is to remove nitrogen oxides and nitric acid. There is no particular harm to health. About 30 million people a year get sick and even die from the food they consume. Controlling and reducing pathogens is critical for fresh foods, such as meat, fish, and fruit vegetables, from production to the table. Microorganisms (myctobacilli, filamentous fungi, bacteria, spore fungi, unicellular bacteria that spoil other fresh food) cause a variety of diseases. Organic or bacterial bacteria in produce or in refrigeration coils, fans or drain lines that interfere with fluid flow can contaminate other stored food. Ozone will further enhance the taste of most foods by oxidizing pesticides and herbicides in fruits and vegetables. In addition, it neutralizes ammonia and ethylene generated during decay.
Ozone, like fluoroscopy, will increase the world's food supply by reducing decaying and wasted food. And also exports to other countries will increase thanks to the increased shelf life of perishable food. Unlike radiation, ozone is a natural hygiene device and an infection control device. Therefore, it is more healthy. Benzene, which reduces vitamin B1 in all foods, is produced in large quantities by the use of radiation. Ozone reduces the chemical complex molecular structure to its original, safe base. There are no harmful residues left by the oxidation. Ozone is always reduced after oxidation to the form of oxygen, the original form of ozone.
Ozone, produced either electrically or through ultraviolet light, converts oxygen molecules into molecules of ozone. Sometimes referred to as activated oxygen or a three-element allotrope of oxygen or pure air. It is an unstable gas, so although it depends on the temperature, it has a life of about 20 minutes. And ozone is reduced back to oxygen after its mission (deodorization, sterilization). This means that customers cannot be bottled, stored, or shipped. It must be made on the spot.
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