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The sewage discharged from dental clinics is a kind of low-concentration sewage, which contains a small amount of pollutants such as drugs and disinfectants, and contains a large number of pathogenic microorganisms and toxic substances. If the wastewater is directly discharged into the water without treatment, it will cause a certain degree of pollution to the surrounding waters and soil, thereby endangering people's daily life.

 

[**]ccording to the "Water Pollutant Discharge Standards for Hospital Institutions", the discharge of medical outpatient sewage should meet the following standards:

1. Sampling 500ml each for three consecutive times for inspection, no intestinal pathogenic bacteria and tuberculosis bacillus can be detected.

2. The total number of coliform bacteria should not exceed 500 per liter.

3. The total residual chlorine is 4-5mg/L.

4. The contact time between sewage and chlorine should not be less than 1 hour.

 

With the development of ozone disinfection technology, it has gradually replaced the process of chlorine disinfection. [**]ccording to the requirements of medical sewage treatment, the following treatment schemes are adopted:

 

The technological process is as follows: Raw water → Regulating sedimentation → Filtration system → Ozone disinfection system → Water discharge (municipal pipeline)

 

Since the main feature of sewage from dental clinics is the small amount of water, but the number of dental clinics is large, the current process is that the sewage enters the multimedia filtration system after passing through the sedimentation device, and finally disinfects with ozone, and the treated water is discharged to the municipal pipe network , no need to add chemicals, greatly saving costs and operating expenses.

More information click:

www.healthept.com

https://gzkqin.en.alibaba.com/
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