Strong ozone sterilization ability
Environmentally safe and green material
Effective decolorization and deodorization
Can improve water quality
Short contact time for ozone disinfection
Hospitals are generally divided into general hospitals and infectious disease hospitals. Hospital sewage is similar to urban fecal sewage in terms of the types and concentrations of pollutants, but not exactly the same. Because in addition to general pollutants, hospital sewage also contains some special pollutants, such as drugs, disinfectants, diagnostic agents, detergents, etc.
Hospital sewage mainly comes from various wards, especially sewage from various infectious wards, operating rooms, and laundry rooms. In addition to containing a large number of pathogenic microorganisms, parasite eggs such as roundworm eggs and various viruses such as hepatitis virus, tuberculosis and dysentery In addition, it also contains a lot of pollutants, of which organic matter accounts for about 60% of the total pollution, and insoluble matter accounts for about 40% of the total. When a large amount of incompatible materials such as muscle tissue are deposited, worms with a larger specific gravity, their eggs, and a large number of bacteria are deposited in the sludge together.
Hospital sewage ozone treatment:
Ozone has a strong ability to kill almost all bacteria, propagules, buds, fungi, bacterium toxins, protozoa such as Pseudomonas aeruginosa, Escherichia coli, aureus, Vibrio cholerae, Mycobacterium tuberculosis and worm eggs. The situation of hospital sewage is complicated, and pretreatment must be done before disinfection. Generally, the dosage of ozone in the effluent of the primary treatment is 30-50mg/l, and the dosage of ozone in the secondary effluent is 15-20mg/l, which is better for the secondary treatment. Then use ozone to disinfect.
Comparison of ozone disinfection of hospital sewage with other disinfection methods
1. Ozone disinfection overcomes the dangers of other methods during transportation, storage and handling.
2. Ozone disinfection has a short contact time and can improve water quality. It is an excellent disinfectant.
3. Ozone can kill viruses and spores that cannot be killed by other methods such as chlorine.
4. Ozone disinfection is not affected by the content of ammonia and hydrogen in wastewater and the pH value.
5. Ozone can be prepared from cheap air or oxygen as a gas source.
6. Due to the development of electronic technology and ozone generation technology in the past year, the energy consumption
of today's ozone generators has been greatly reduced, the volume is getting smaller and the operation stability has been greatly improved,
and the current electricity bill is low, and the electricity is sufficient, so ozone is used in sewage treatment.
The application of, has more and more obvious advantages.
7. The price of today's ozone generator is comparable to that of sodium hypochlorite, chlorine, and chlorine dioxide generators.
In summary, the application of ozone to the disinfection of hospital wastewater has become an inevitable and excellent choice.
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