HOW MUCH SOLUBILITY OF OZONE IN WATER CAN IT STERILIZE AND DISINFECT?
The solubility of ozone in water applications is between 0.1mg/L and 10mg/L. The low value is used as the minimum concentration required for water disinfection and purification, and the high value is used as the achievable concentration value of "ozone water disinfectant".
1.Ozonation of tap water, the international conventional standard is a solubility value of 0.4mg/L, maintained for 4 minutes, that is, the CT value is 1.6.
2. The residual ozone concentration in the water should be maintained at 0.1~0.5mg/L for 5~10 minutes to achieve disinfection purposes.
3. Ozone water disinfection and sterilization is rapid, and the disinfection effect occurs instantly. Once the ozone concentration in clean water reaches a certain level, it will kill bacteria within 0.5 to 1 minute. When the concentration reaches 4 mg/L, the hepatitis B virus inactivation rate will be 100% within 1 minute.
4.Herbold reported: At 20°C, when the ozone concentration in water reaches 0.43mg/L, it can kill 100% of E. coli. At 10°C, only 0.36mg/L is needed to kill them all.
5.When the ozone concentration is 0.25~38mg/L, it only takes a few seconds or minutes to completely inactivate hepatitis A virus (HAV)
6.When the solubility of ozone in mineral water is 0.4~0.5mg/L, it can meet the sterilization and quality assurance requirements. The reasonable dosage of ozone is 1.5~2.0mg/L.
7.Bottled water treatment should reach an ozone solubility value of 0.3~0.5mg/L, and the ozone added should meet the amount of 2gO3 produced in 1m3 of water. According to practical experience, the ozone concentration is easily reached when the concentration is higher than 8mg/L.
