AiKe's original after-sales operation and maintenance team went to Haitang Hospital in Chengdu, Sichuan, to provide free on-site special maintenance services for the AK-YLFS-XZH series 100 L/day medical laboratory wastewater treatment equipment that has been running smoothly for 3 years. As a comprehensive medical institution integrating clinical testing and scientific research and teaching in Chengdu, the wastewater of the hospital's testing and pathology departments has dual attributes of medical and scientific research. It not only contains potentially infectious pathogenic microorganisms, but also is mixed with trace heavy metals, acid-base reagents and organic residues generated in the testing process, and the disposal standard is strict.

Combined with the humid and rainy climate characteristics of Chengdu all year round, after 3 years of continuous operation, the equipment has hidden aging hazards such as filter material siltation and sensor parameter deviation. This maintenance focused on the in-depth investigation and calibration of the disinfection and inactivation unit, which is the core of the medical scenario, and simultaneously conducted special hands-on training for the department's operation and maintenance personnel. After on-site sampling and verification, the effluent fully met the relevant requirements of the 'Discharge Standard of Water Pollutants for Medical Institutions', and effectively built a biosafety defense line for the laboratory wastewater disposal of local medical institutions.

📅Service time: 3 years

🏫 User organization: Haitang Hospital

📍Province/City: Chengdu City, Sichuan Province

🧪 Equipment series: AK-YLFS-XZH

💧 Daily treatment: 100L

I. Laboratory Wastewater Treatment Difficulties of Haitang Hospital

As a comprehensive medical institution integrating clinical testing and scientific research and teaching in Chengdu, Haitang Hospital generates wastewater from its testing, pathology and central laboratories with dual attributes of medical and scientific research wastewater, and the treatment difficulties are particularly prominent.

First, the biosafety risk is high. The hospital laboratory carries out blood, body fluid, microorganism culture and pathological tissue detection on a daily basis. The wastewater may be contaminated by various pathogenic microorganisms and is potentially infectious. Once the disinfection and inactivation are not thorough, it may cause public health hazards, and puts forward extremely high requirements for the inactivation accuracy and reliability of the treatment equipment.

Second, the wastewater composition is complex and changeable. Experiments in the testing department such as biochemistry, immunology and molecular diagnosis generate mixed wastewater containing acid-base reagents, heavy-metal ions, organic dyes and disinfectant residues. The water quality varies greatly among different departments and time periods, and conventional single processes can hardly achieve comprehensive and stable purification.

Third, the drainage law is extremely unstable. The hospital laboratory has a daily treatment capacity of only 100 liters, but the frequency of clinical testing and scientific research experiments fluctuates obviously with the diagnosis and treatment needs and project progress. The wastewater discharge shows the characteristics of strong intermittence and uncertain instantaneous shocks. At the same time, the hospital has compact internal space and limited equipment placement conditions, which puts forward practical requirements for the miniaturization, automation and ready-to-use capability of the equipment.

II. AiKe Provides Free On-site Maintenance for Chengdu Haitang Hospital's Laboratory Wastewater Equipment

Recently, AiKe's after-sales engineer team went to Haitang Hospital in Chengdu, Sichuan Province, to provide free on-site maintenance services for the AK-YLFS-XZH series laboratory wastewater treatment equipment that has been in use for 3 years, so as to fully guarantee the safe and compliant treatment of the hospital's testing department experimental wastewater.

The hospital's testing department carries out various clinical specimen testing work on a daily basis. The laboratory wastewater is mixed with acid-base reagents, trace heavy metals, organic reagents and a small amount of pathogenic microorganisms. The drainage is characterized by intermittence and has high requirements for the equipment's purification and disinfection treatment capabilities. The maintenance equipment has a daily treatment capacity of 100L, an integrated design, small footprint, adapts to the installation conditions of the hospital laboratory, and has continuously undertaken the in-hospital testing wastewater treatment tasks. The climate in Chengdu is humid and rainy, and after long-term operation, the equipment has aging hidden dangers such as filter material siltation and sensor parameter deviation.

On-site engineers comprehensively repaired and cleaned the equipment's disinfection module, flocculation sedimentation unit, corrosion-resistant pipes and intelligent electronic control system, calibrated the equipment operating parameters, and investigated component hidden dangers brought by the humid environment. At the same time, they conducted hands-on training for the hospital department staff, explaining the key points of daily inspection and basic maintenance. After maintenance, sampling and verification showed that the outlet indicators met the specifications of the 'Discharge Standard of Water Pollutants for Medical Institutions'. AiKe guards the green and environmental protection operation of medical institution laboratories with professional original maintenance services.

III. Parameters of AiKe AK-YLFS-XZH Series Laboratory Wastewater Treatment Equipment

IV. Discharge Standards of AiKe AK-YLFS-XZH Series Laboratory Wastewater Treatment Equipment

☑ Integrated Wastewater Discharge Standard (GB8978-1996)

☑ Water Quality Standard for Wastewater Discharged into Urban Sewers (GB/T 31962-2015)

☑ Discharge Standard of Water Pollutants for Medical Organizations (GB18466-2016)

☑ User-specified treatment requirements or local relevant wastewater discharge policies