Hospital wastewater contains a large number of pathogens, organic matter, and suspended solids. If it is discharged directly without treatment, it can cause serious pollution to the surrounding water bodies and soil. At the same time, hospital wastewater may also contain harmful substances such as radioactive materials and heavy metals, posing a threat to people's health. Therefore, to build a "waste-free hospital," it is essential to strengthen wastewater treatment to ensure that the discharged wastewater meets the standards.The following are essential stages of wastewater treatment.

Pretreatment: Before entering the treatment system, hospital wastewater needs to undergo pretreatment to remove suspended solids and large particulate organic matter. Pretreatment can use equipment such as screens and sedimentation tanks.

Biological Treatment: Biological treatment is the core link in the treatment of hospital wastewater. Organic matter in the wastewater is decomposed into harmless substances through the metabolic action of microorganisms.

Advanced Treatment: Advanced treatment is a further treatment of the wastewater after biological treatment. Technologies such as filtration, adsorption, and membrane separation can be used to remove residual organic matter and pathogenic microorganisms from the wastewater.

Disinfection: The disinfection of medical wastewater is the last and very important step in the medical wastewater treatment process. Disinfection can use technologies such as ozone, active oxygen, chlorine gas, and ultraviolet light to remove pathogens and bacteria from the wastewater.