Reasons for contamination of laboratory ultrapure water machine
Source of articles：
Changsha Vaughn Environmental Protection Technology Co., Ltd
Publication time：2020-05-01 16:07:17
Because there are many impurities in the water, when the water enters the laboratory ultrapure water machine, if it is not handled properly, it will cause pollution to the laboratory ultrapure water machine. What is the first way for laboratory ultra-pure water equipment to be contaminated？
1. Water pollution
The source of the laboratory ultrapure water machine is the effluent after ultrafiltration of city tap water. The water quality is ideal, but some fungi use spores to reproduce. Although urban tap water is disinfected with chlorination before ultrafiltration, some fungal spores may enter reverse osmosis in the case of false death and participate in the treatment of reducing agents to remove residual chlorine in the water. In the pipeline from the reverse osmosis feed pump to the reverse osmosis water, there is no oxidizing bactericide that can inhibit the growth of bacteria and other microorganisms. It has created good living conditions for anaerobic bacteria and other microorganisms, enabling fungi and other microorganisms to reproduce and grow rapidly in these parts.
2. Multiply microorganisms by security filter
The pre-security filter of the laboratory ultrapure water machine is the last filtration equipment before entering the reverse osmosis. The filtering accuracy is only 5μm, and the ability to trap pollutants is strong. When the remaining material is gathered together, it becomes an ideal environment for microbial reproduction. In other similar equipment, there have been many cases where the growth of foreign substances inside the security filter has affected the laboratory ultrapure water machine. .Fungus enters the reverse osmosis body with the influent water, and multiplies in reverse osmosis, affecting the operation of the equipment.
3. The effect of ultrafiltration water on the system
This type of influence is minimal, but it cannot be ruled out.