Medical Wastewater Treatment Equipment Introduction
Medical wastewater treatment equipment is a special Wastewater treatment device customized for bacterial wastewater, medicinal wastewater and pathogen-containing wastewater generated in hospitals, clinics, health centers and other medical institutions. Adopting the combined process of pretreatment + biochemical treatment + advanced treatment + disinfection and sterilization, it removes bacteria, viruses, heavy metals, organic matter, pharmaceutical residues and other pollutants in wastewater. The effluent complies with the Discharge Standard for Water Pollutants in Medical Institutions (GB18466-2005), realizing safe up-to-standard discharge or reclaimed water reuse.
The equipment is divided into two main types: integrated type and combined type. It features anti-corrosion, strong bacterial resistance, high automation and high sanitary safety level. As the core equipment for Wastewater treatment in the medical industry, it is widely applicable to all levels of medical sites and health institutions.
Working Principle of Medical Wastewater Treatment Equipment
The equipment follows the core logic of disinfection sterilization as the core and biochemical degradation as the foundation. Considering the characteristics of medical wastewater such as large water volume fluctuation, high bacterial content, complex composition and strong toxicity, it achieves purification through multi-stage coordinated processes:
Pretreatment Stage: Intercept large particles & reduce turbidity
Medical wastewater first passes through a grille machine to intercept large impurities such as hair, gauze and food residues, then flows into the regulating tank to balance water quantity and quality and avoid impact load. Afterwards, PAC/PAM agents are added in the coagulation reaction tank to form flocs and initially remove suspended solids and colloids.
Biochemical Treatment Stage: Degrade organic matter + Nitrogen and phosphorus removal
Based on biological contact oxidation process, A/O process or MBR membrane bioreactor, microorganisms adsorb and degrade COD, BOD, ammonia nitrogen, total phosphorus and other organic pollutants. Alternating anaerobic and aerobic operation realizes denitrification and dephosphorization and reduces wastewater toxicity.
Advanced Treatment Stage: Deep purification & residue removal
Biochemically treated wastewater enters filtration units such as quartz sand and activated carbon filtration to further remove fine suspended solids, trace organic matter and chromaticity. For reuse requirements, ultrafiltration/nanofiltration can be adopted for advanced purification to improve water quality.
Disinfection & Sterilization Stage: Complete pathogen elimination
As the key link of medical wastewater treatment, chlorine dioxide disinfection, sodium hypochlorite disinfection, ultraviolet disinfection and other methods are used to kill Escherichia coli, Salmonella, viruses and other pathogens, ensuring effluent sanitary safety and preventing secondary pollution.
System Advantages of Medical Wastewater Treatment Equipment
• Professionally adapted to medical wastewater with 100% compliance rate
Customized process for bacteria, medicine residues and high pathogens; stably meets GB18466-2005 Grade I/II discharge standards for direct discharge.
• Thorough disinfection with no hidden sanitary risks
Coordinated multi-disinfection processes achieve sterilization rate ≥99.9%, completely eliminating bacteria, viruses and parasite eggs to prevent disease transmission and meet medical and health safety regulations.
• Integrated design, small footprint & fast installation
All processes are integrated into one unit without large-scale civil engineering. It can be put into use simply by connecting water and electricity on site, adapting to limited hospital space with a construction period of only 3-10 days.
• High automation & unattended operation
Equipped with PLC intelligent control system to automatically complete water intake, aeration, dosing, disinfection and sludge discharge. Fault alarm and remote monitoring functions reduce operation and maintenance costs without professional duty.
• Corrosion resistance & long service life
The main body adopts 304/316L stainless steel, glass fiber reinforced plastic and anti-corrosion carbon steel, resisting acid, alkali and bacterial corrosion to adapt to the strong corrosiveness of medical wastewater, with a service life of 15-20 years.
• Low operating cost & energy saving
High-efficiency aeration and energy-saving water pumps reduce energy consumption by 30%-40% compared with traditional processes; precise dosage of disinfectant makes long-term operation economical.
• Fully enclosed operation, no odor & no secondary pollution
Fully enclosed structure equipped with waste gas collection and treatment system prevents odor diffusion and does not affect the surrounding hospital environment and working conditions of medical staff.
• Strong adaptability & customizable design
Process solutions can be customized according to hospital scale (outpatient, inpatient, specialized hospital), wastewater volume and water quality composition, meeting demands from community clinics to Grade A tertiary hospitals.
Application Fields of Medical Wastewater Treatment Equipment
• All levels of hospitals: Grade A tertiary hospitals, general hospitals, specialized hospitals (orthopedics, gynecology, pediatrics, infectious disease hospitals, etc.)
• Grassroots medical institutions: community health service centers, township health centers, village clinics and medical clinics
• Health-related institutions: CDC, blood stations, emergency centers and medical laboratories
• Other related sites: nursing homes, rehabilitation centers, maternal and child health hospitals, pet hospitals and medical aesthetic institutions
Supporting Process Equipment
Supporting facilities include grille machine, dissolved air flotation machine, chlorine dioxide generator, sodium hypochlorite dosing device, ultraviolet sterilizer, MBR membrane module, sludge filter press and other core accessories.
Standard Process Flow of Medical Wastewater Treatment Equipment
Medical Wastewater Treatment Equipment Standard Process Flow Chart
With mature working principle, stable system advantages and complete process flow, medical wastewater treatment equipment has been widely applied in the medical water treatment industry. To obtain customized solutions and quotations, please visit the homepage of Xi'an DIEN Water Treatment Official Website for consultation.
