Hospital Wastewater Disinfection Dosing
Summary: GB18466 compliance, NaOCl dose calculation and online chlorine monitoring configuration.
Compliance
GB18466 requires total residual chlorine ≥2 mg/L after contact (higher for infectious-disease hospitals) with fecal coliform absent.
Dose Calculation
Estimate from influent quality and contact time, then trim by effluent chlorine feedback; typically 15-40 g Cl/m³.
Monitoring
Effluent chlorine analyzer + auto dosing pump + alarm sampler form a compliant closed loop. See chlorine analyzers.