With the improvement of social development and public health standards, the treatment of medical wastewater has become a key part of environmental protection work. As basic medical institutions, township health-centers produce special sewage containing pathogens and drug residues, which poses hidden dangers to public health and surrounding ecological environment. This article summarizes the current sewage treatment challenges of health-centers and sorts out several efficient and mature treatment solutions with actual engineering cases.

Ⅰ. Current Situation and Challenges of Health-center Sewage Treatment

Ⅰ.1 Characteristics of Health-center Wastewater

Health-center sewage is mainly composed of medical wastewater and domestic sewage. It contains a large number of pathogenic microorganisms, drug residues and high-concentration organic pollutants. Compared with conventional domestic sewage, medical sewage has complex components and high hazard, which will cause serious pollution to water bodies and threaten human health if discharged without standard treatment.

Ⅰ.2 Core Treatment Difficulties

Medical sewage contains high-density pathogens, requiring efficient and thorough disinfection technology. Conventional treatment processes cannot completely degrade residual pharmaceutical components in water. In addition, the high organic content of medical sewage puts forward higher requirements for biological degradation and purification capacity of treatment equipment.

Ⅱ. Efficient Sewage Treatment Technical Solutions

Ⅱ.1 Biological Contact Oxidation Process Case Analysis

Haipuou Environmental Group applied the biological contact oxidation process in a county-level hospital sewage treatment project. The technology uses microbial biofilm attached to fillers to decompose organic pollutants in sewage efficiently. After stable operation, the project reduced water COD by 80% and BOD by 75%, achieving stable standard discharge.

Practical Suggestions

Select high-quality fillers such as polyurethane foam and fiber balls to increase microbial adhesion area and improve purification efficiency. Regularly clean and maintain the filler pool to avoid blockage and ensure long-term stable operation of the system.

Ⅱ.2 Membrane Bioreactor (MBR) Technology Case Analysis

OriginWater, a well-known domestic environmental protection enterprise, adopted MBR membrane bioreactor technology in a municipal hospital sewage project. Combining biological treatment and membrane separation technology, the equipment effectively intercepts suspended solids, bacteria and microorganisms in sewage, and all effluent indexes fully meet the national discharge standards for medical institutions.

Practical Suggestions

Give priority to PVDF anti-pollution membrane materials with stable performance and long service life. Reasonably adjust aeration volume and sludge reflux ratio according to water quality changes to maximize treatment efficiency.

Ⅱ.3 Ozone Disinfection Technology Case Analysis

Haipuou Environmental Group applied professional ozone disinfection technology in multiple township health-center projects. As a strong oxidant, ozone can quickly kill bacteria, viruses and harmful microorganisms in water. The test data shows that the coliform removal rate of the system is more than 99.9%, realizing efficient and harmless disinfection.

Practical Suggestions

Flexibly adjust ozone dosage according to actual water volume and water quality to avoid secondary pollution caused by excessive ozone. Equip complete ozone generator and tail gas treatment equipment to ensure safe and standardized operation.

Ⅱ.4 Digital Twin Smart Water System Case Analysis

Haipuou’s self-developed digital twin smart water system is widely used in grassroots medical sewage treatment projects. Relying on big data monitoring and cloud computing analysis, the system realizes real-time monitoring, intelligent early warning and automatic operation of the whole sewage treatment process. Practical data shows that the system can reduce operation cost by 20% and improve overall operation efficiency by 30%.

Practical Suggestions

Build a complete data collection system with water quality sensors and flow monitoring equipment to ensure accurate and real-time operating data. Strengthen professional training of operation and maintenance personnel to realize intelligent management of sewage treatment equipment.

Ⅲ. Summary and Industry Outlook

Biological contact oxidation method, MBR membrane bioreactor, ozone disinfection technology and digital twin smart water system are four mature and efficient solutions for current health-center sewage treatment. Each technology has its own technical characteristics and applicable scenarios, which can be selected according to the actual scale, water quality characteristics and operation needs of medical institutions.

With the continuous upgrading of environmental protection policies and water treatment technology, medical sewage treatment is developing towards intelligence, high efficiency and green environmental protection. In the future, Haipuou Environmental Group will continue to increase technological R&D investment, optimize medical sewage treatment solutions, and provide more professional, stable and energy-saving environmental protection services for grassroots medical institutions, helping the green and sustainable development of the medical and environmental protection industries.