Equipment Introduction:

Select the process based on the size, nature, and discharge direction of the hospital's wastewater treatment. According to hospital classification, it is divided into infectious disease hospitals and comprehensive hospitals. The discharge direction of hospital sewage after treatment is divided into two categories: discharging into natural water bodies and discharging into urban sewage treatment plants through municipal sewers.

The process used for hospital sewage treatment must ensure that the treated effluent meets the standard. The three main processes used are: primary treatment to enhance treatment effectiveness, secondary treatment, and simple biochemical treatment.

technological process:

For sewage treatment in general hospitals (without infectious disease wards), the process of "pretreatment → first level enhanced treatment → disinfection" can be adopted. By using coagulation precipitation (filtration) to remove particles carrying viruses and bacteria, the disinfection effect is improved and the amount of disinfectant used is reduced, thereby avoiding the adverse effects of excessive disinfectant use on the environment.

First level strengthening treatment process flow

The hospital sewage enters the regulating tank through the septic tank, and an automatic grille is installed at the front of the regulating tank. A lifting water pump is installed inside the regulating tank. After the sewage is lifted, it enters the coagulation sedimentation tank for coagulation sedimentation. The effluent from the sedimentation tank enters the contact tank for disinfection, and the effluent from the contact tank meets the discharge standards.

The sludge and slag generated in the sewage treatment station, such as the regulating tank, coagulation sedimentation tank, and contact tank, are centrally disinfected and transported outside. Disinfection can be achieved through methods such as pasteurization with steam or adding lime.