applications

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.