Hospital Waste Water Treatment and Water Disinfectant Powder

Nature of Hospital Waste Water

Sources of hospital waste water include: clinics, laboratories, wards, laundries, X-ray imaging processing, isotope treatment diagnoses, operating rooms, etc.; the composition and volume of waste water produced by different departments vary, such as heavy metal wastewater, oily wastewater, imaging wastewater, radioactive wastewater, etc. Furthermore, the waste water produced by hospitals of different natures also varies greatly. Hospital wastewater is more complex than general domestic waste water, with each bed discharging about 200-1000L of waste water per day.

What Is Hospital Waste Water Treatment?

Hospital waste water treatment refers to the specialized methods of treating waste water discharged by hospitals. The characteristics of this waste water include a large number of pathogens (such as bacteria, viruses, and parasitic eggs), drug residues, heavy metals, and harmful chemicals. If hospital waste water is not treated effectively, it can become a significant route for the spread of epidemics and a severe environmental pollutant. Therefore, hospital waste water must undergo rigorous treatment before being discharged.

Principles of Hospital Waste Water Treatment

Principle of Whole Process Control

Control the entire process of hospital waste water generation, treatment, and discharge.

Principle of Minimization

Strict control and separation at the source of waste water and waste generation, with separate collection of domestic waste water and waste water from medical areas within the hospital, ensuring source control and separation of clean and dirty water streams.

Principle of On-Site Treatment

To prevent pollution and hazards during the transportation of hospital waste water, on-site treatment within the hospital is mandatory.

Principle of Classification Guidance

Provide classification guidance for hospital waste water treatment based on the nature, scale, waste water discharge direction, and regional differences of the hospital.

Principle of Combining Standard Compliance with Risk Control

Consider the basic requirements for compliant discharge of hospital waste water while enhancing awareness of risk control.

Principle of Ecological Safety

Effectively remove toxic and harmful substances from the waste water, reduce the production of disinfectant by-products during treatment, and protect the safety of the ecological environment.

The main methods of hospital waste water treatment include physical treatment, biological treatment, and chemical treatment, among which biological treatment methods (such as aerated biological filters) are widely used because of their efficiency, economy, and environmental friendliness. Aerated biological filter methods have advantages such as high organic load capacity, small land occupation, large biomass, high activity, and strong resistance to impact, making them effective in removing organic matter and pathogenic microorganisms from the waste water.

Water Disinfectant Powder for Medical waste water

In hospital waste water treatment, the use of waste water disinfectant powders is crucial. Commonly used water disinfectant powders include sodium hypochlorite, liquid chlorine, chlorine dioxide, etc. These water disinfectant powders achieve efficient sterilization and disinfection by destroying the cell structure of microorganisms through strong oxidation. Sodium hypochlorite is widely used because of its easy preparation and fast disinfection effect; liquid chlorine, although having a strong disinfecting ability, poses high risks in storage and transportation; chlorine dioxide is preferred for its high efficiency and low toxicity. Hospitals need to select water disinfectant powders reasonably based on the characteristics of the waste water, treatment scale, and safety and environmental protection requirements to ensure compliant waste water discharge and safeguard public health safety.