What is the relationship between ozone water concentration and ozone sterilization effect? How high

The most economical operation is ozone water soluble concentration, and the reaction time is 4 minutes. Ozone is a gas, and only by dissolving ozone into water, so that the water contains a certain concentration of ozone, and maintaining a certain reaction time, can the purpose of sterilization and disinfection be achieved. There are several commonly used ways to mix ozone with water, such as bubbling method, jet method, and mixing pump.

In order to make the water reach a certain ozone concentration, in addition to the ozone generator.

There is sufficient ozone production and concentration, and the gas-liquid mixing efficiency also needs to be ensured. Recommended ct values for the ozone industry.

, c is the ozone water soluble concentration (mg l), t is the reaction time (min).

Concentration of ozone in water:

The ozone solubility in water applications is between. 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".

Tap water ozone purification, the solubility value of the international conventional standard, is maintained for 4 minutes, that is, the CT value is.

The residual ozone concentration in the water is kept at the effect for 5 10 min to achieve the purpose of disinfection.

When the solubility of ozone in mineral water is there, it can meet the requirements of sterilization and quality preservation. A reasonable amount of ozone is:

The ozone solubility value that should be reached for bottled water treatment requires that the ozone dosage should meet the amount of 2g O for 1m of water. According to practical experience, it is easy to reach the concentration of ozone when the concentration is higher than 8 mg l.

Ozone (O), also known as superoxide, is an allotropic form of oxygen (O), and at room temperature, it is a light blue gas with a special odor. Ozone is mainly distributed in the stratospheric atmosphere at an altitude of 10 50 km, with maximums ranging from 20 to 30 km.

Ozone is extremely oxidizing and has a redox potential second only to fluorine, which is mainly used in its applications.

Ozone supports combustion, and combustibles can spontaneously ignite when placed in ozone and burn more violently than oxygen.

Answer: Ozone (O3) is an allotrope of oxygen, which is a light blue gas with a peculiar odor. The molecular structure is triangular, the bond angle is 116°, its density is times that of oxygen, and its solubility in water is 10 times that of oxygen.

Ozone is a strong oxidizing agent, its redox potential in water is, second only to fluorine (, its oxidation ability is higher than chlorine (and chlorine dioxide, can damage the cell wall of decomposing bacteria, quickly diffuse into the cell, oxidative decomposition bacteria internal oxidation of glucose must be necessary glucose oxidase, etc., can also directly interact with bacteria, viruses, destroy cells, ribonucleic acid (RNA), decompose deoxyribonucleic acid (DNA), RNA, proteins, lipids and polysaccharides and other macromolecular polymers, The metabolism and reproduction processes of bacteria are disrupted. The killing of bacteria by ozone is caused by the rupture of the cell membrane, a process known as cell dissipation, which is caused by the crushing of the cytoplasm in water, and it is impossible for the cell to regenerate under the condition of dissipation. It should be noted that unlike hypochlorous acid disinfectants, the bactericidal ability of ozone is not affected by pH changes and ammonia, and its bactericidal ability is 600-3000 times greater than that of chlorine.

To achieve the same sterilization effect (e.g., 99% E. coli killing rate), the ozone water dose required is chlorine only.

The World Health Organization recommends a CT value, generally for drinking water disinfection, as long as the remaining ozone concentration in the water is maintained and above, the duration is 4min or more, that is, CT is enough, C is the ozone concentration, T is the duration.