Principle of hospital sewage treatment equipment

Hospital sewage treatment equipment is generally buried in the ground, and the secondary biological contact oxidation treatment process is adopted. Its treatment effect is better than that of the fully mixed biological oxidation tank, and it has strong adaptability to water quality and ensures the stability of water treatment. The equipment adopts a new type of strong elastic three-dimensional filler, which can effectively remove organic matter in sewage. After oxidation treatment, the equipment produces less sludge and can be discharged every 90 days. To avoid the growth of bacteria released during transmission, the water must be deeply disinfected. Currently, widely used disinfection processes include ultraviolet disinfection, chlorine dioxide disinfection and ozone disinfection. Hospitals should choose according to the characteristics of water quality and sewage discharge.

Features of hospital sewage treatment equipment:
1. The surface area of the buried equipment can be used as green land, saving the hospital floor space.
2. The sewage comprehensive equipment adopts corrosion-resistant and anti-oxidative materials, which has a long service life and saves operating costs for the hospital.
3. Through the biological contact oxidation tank combined with the layer-by-layer filtration and disinfection device, the sewage treatment effect is good, and the problem of bacterial transmission is solved.
4. The equipment has good deodorization effect. The amount of sludge produced is small and will not cause other pollution hazards to the environment.
5. Fully automatic control system, equipped with damage alarm system, no need for manual care, saving manpower investment.
When using the high-temperature composting method for the harmless treatment of sludge, the composting temperature should be higher than 50℃ and last for more than 5 days.
For hospitals without sewage equipment or centralized sewage treatment facilities, infectious feces should be disinfected or treated harmlessly.

New standards for hospital sewage treatment equipment sewage treatment:
1. The new standard controls the sewage, waste gas and sludge produced by the hospital. It not only considers ecological safety, but also pays attention to the disinfection of pathogen-containing sewage.
2. In terms of biological indicators, the new standard stipulates different requirements for hospital sewage discharge and sewage discharge. The standard strictly distinguishes the nature of the hospital and divides the destination of sewage into two classes. On the basis of the original standard, control indicators at all levels are proposed.
3. Taking into account the disinfection effect and ecological safety, the new standard has clear regulations on the amount of disinfection and disinfection of hospitals and sewage of different natures, and has a strict upper limit on the residual chlorine standard.
4. In terms of physical and chemical indicators, the indicators of animal and vegetable oils, petroleum and anionic surfactants are strictly controlled, which improves the anti-risk ability of the sewage treatment system. Since ammonia nitrogen consumes disinfectant at the same time, there are strict requirements for ammonia nitrogen.

https://www.biocell-enviro.com/