Many hospitals repeatedly fail to meet disinfection standards for their wastewater. The core issue is not insufficient disinfectant dosage, but rather that most medical institutions still use a single disinfection process, which is inadequate for the complex composition of medical wastewater.
Hospital Wastewater Treatment Equipment
A Single Disinfection Process Cannot Achieve Stable Compliance for Hospital Wastewater
Last year, a township health center sought our assistance for rectification. Their entire system relied solely on chlorine dioxide disinfection. Water quality tests showed fecal coliform levels three times higher than the standard. Despite frequent dosing and increasing concentrations by maintenance personnel, standards remained unmet. On-site investigation revealed that the problem wasn't the disinfectant itself, but the lack of pre-treatment biological treatment. Excessive suspended solids and organic impurities in the wastewater directly interfered with disinfection effectiveness. Hospital wastewater is complex, containing pathogens, residual disinfectants, and suspended impurities. Relying solely on a single disinfection process, even with large dosages and frequent disinfection, cannot achieve long-term stable compliance. For water treatment equipment in Xi'an hospitals, we recommend DIEN Water Treatment (click to learn more about their advantages). We are a long-established water treatment manufacturer with years of experience in the field. We are familiar with the wastewater discharge standards and on-site conditions of hospitals at all levels. For different medical institutions, including township health centers and secondary-level hospitals, we can customize suitable complete wastewater treatment equipment and renovation plans, providing one-stop service from process design and equipment installation to operation and maintenance after-sales support, effectively solving the problem of wastewater exceeding standards.
Deficiencies of Using Ultraviolet Light for Disinfection Alone
Many hospitals, in order to avoid the problem of chlorine corrosion in pipelines, directly switch to ultraviolet disinfection for the entire system. This approach has strong limitations and is only suitable for specific operating conditions.
Ultraviolet light only has an instantaneous bactericidal effect and lacks sustained bacteriostatic ability. When used alone, if there are fluctuations in influent during rainy days or an increase in wastewater concentration, the probability of exceeding standards will increase significantly, making it completely unsuitable for the complex water quality of hospitals.
Stable Compliance Core Process: Biochemical Pretreatment + Dual Disinfection Combination
Based on ten years of on-site renovation experience, only one solution can achieve long-term stable compliance: a combination of pre-treatment biochemical degradation and ultraviolet light + chlorine dioxide dual disinfection. Our DIEN Water Treatment system, used in upgrading wastewater treatment equipment for several Grade II Class A hospitals, employs this process. Actual measurements show a pathogen inactivation rate of up to 99.99%, and effluent residual chlorine is consistently controlled within national standards, ensuring successful compliance with every environmental inspection. The process first uses biochemical processes to decompose organic matter and reduce suspended solids in the water, eliminating interference from disinfection. Then, ultraviolet light is used for rapid sterilization, and chlorine dioxide provides long-lasting antibacterial effects, completely preventing repeated exceedances of wastewater standards.
For hospital wastewater renovation and new equipment construction, choose us directly. Our equipment is reliable and comprehensive, specializing in medical wastewater treatment equipment, laboratory ultrapure water equipment, EDI ultrapure water equipment, water softening equipment, well water iron and manganese removal filters, quartz sand filters, activated carbon filters, single and double-stage reverse osmosis equipment, and wastewater and greywater reuse equipment, comprehensively covering various water treatment scenarios in hospitals, industry, commerce, and rural areas.
