Compared with domestic sewage, medical wastewater features more complex compositions and is therefore harder to treat. Hospital wastewater contains routine pollutants as well as pathogenic microorganisms, laboratory reagents and viruses, all of which pose severe risks to human health and cannot be ignored.
Although the pandemic peaked more than two years ago, relevant infectious risks still exist. If wastewater from designated hospitals for infectious disease treatment is discharged without proper treatment, it may trigger transmission of infectious diseases via water channels. This highlights the critical value of automatic monitoring stations for medical wastewater treatment facilities.
Core Functions of Such Automatic Monitoring Stations
They conduct continuous Medical Wastewater Online Monitoring to assess treatment effects and verify whether effluent meets discharge standards, serving as an indispensable link in the full wastewater treatment workflow.
Seven Core Stages of Medical Wastewater Treatment
The complete treatment process consists of seven sequential steps: sedimentation, screening, homogenization, flocculation reaction, secondary sedimentation, disinfection, and online monitoring. Online water quality monitoring is implemented as the final step to evaluate overall treatment performance.
Process Overview
Collection pipelines are laid across all hospital zones to gather all medical wastewater into centralized collection tanks. Wastewater first passes through screens to remove solid debris before entering homogenization tanks. When the water level in homogenization tanks reaches a preset threshold, pumping equipment automatically transfers filtered wastewater. An automatic flocculation dosing unit separates contaminants via flocculation and static sedimentation, followed by disinfection procedures.
What Indicators Need to be Monitored for Hospital Wastewater?
Apart from conventional indicators and disinfectant residues, coliform bacteria are the key testing target, whose detection mainly serves to determine the total bacterial count in medical wastewater. The WECT-900 Online Coliform Analyzer can be applied for this monitoring work.
