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[content] => Hospitals are generally divided into two categories: 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 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 number 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.
In recent years, radioisotopes have been widely used in medical treatment. For example, these medical appliances are often washed with water. Therefore, the washing sewage will contain radioisotopes.
The recently developed ozone water treatment technology has been widely used in hospital sewage treatment projects and has received excellent results. This is because ozone has a stronger oxidation capacity than chlorine, bleaching powder, and chlorine dioxide, and can be 600 faster than chlorine. -3000 times faster to kill all bacteria, viruses, etc. that cannot be completely killed by chlorine; it can separate some heavy metal ions Pb, Hg, and other oxidative precipitation; in addition, ozone can also reduce the biochemical oxygen consumption (BOD) and Chemical oxygen demand (COD), nitrate removal, decolorization, deodorization, etc. The hospital sewage treated in this way can greatly improve the discharge standard, and can even be returned to be used as non-potable water.
Process introduction
The whole process can be processed in two stages.
[**]. Primary treatment
The main link is to discharge into urban sewage after disinfection and sterilization, and then enter the urban sewage treatment plant for advanced treatment.
B. Secondary treatment
[**]fter the secondary treatment, the sewage can not only be sterilized and discharged, but also BOD and COD have been greatly reduced, reaching the national first-level discharge sewage standard, and can be directly discharged into the water body.
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 ammonia hydrogen content and PH value in the wastewater.
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 is greatly reduced, the size is getting smaller and the operation stability is greatly improved, and the current electricity bill is low, and the electricity is sufficient, so ozone is used in sewage treatment. The application 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.
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[seo_desc] => In recent years, radioisotopes have been widely used in medical treatment. For example, these medical appliances are often washed with water. Therefore, the washing sewage will contain radioisotopes.
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Hospitals are generally divided into two categories: 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 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 number 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.
In recent years, radioisotopes have been widely used in medical treatment. For example, these medical appliances are often washed with water. Therefore, the washing sewage will contain radioisotopes.
The recently developed ozone water treatment technology has been widely used in hospital sewage treatment projects and has received excellent results. This is because ozone has a stronger oxidation capacity than chlorine, bleaching powder, and chlorine dioxide, and can be 600 faster than chlorine. -3000 times faster to kill all bacteria, viruses, etc. that cannot be completely killed by chlorine; it can separate some heavy metal ions Pb, Hg, and other oxidative precipitation; in addition, ozone can also reduce the biochemical oxygen consumption (BOD) and Chemical oxygen demand (COD), nitrate removal, decolorization, deodorization, etc. The hospital sewage treated in this way can greatly improve the discharge standard, and can even be returned to be used as non-potable water.
Process introduction
The whole process can be processed in two stages.
[**]. Primary treatment
The main link is to discharge into urban sewage after disinfection and sterilization, and then enter the urban sewage treatment plant for advanced treatment.
B. Secondary treatment
[**]fter the secondary treatment, the sewage can not only be sterilized and discharged, but also BOD and COD have been greatly reduced, reaching the national first-level discharge sewage standard, and can be directly discharged into the water body.
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 ammonia hydrogen content and PH value in the wastewater.
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 is greatly reduced, the size is getting smaller and the operation stability is greatly improved, and the current electricity bill is low, and the electricity is sufficient, so ozone is used in sewage treatment. The application 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.
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