Analysis of the Reasons for Changes in Water Quality in Ultrapure Water Systems

When using ultrapure water systems, we are all concerned about equipment malfunctions, especially the quality of the output water. A decline in water quality can affect product quality, so this is an issue that must be carefully considered. What are the reasons for a decline in the quality of ultrapure water?

1. Tank Material: Because ultrapure water is highly pure and virtually free of impurities, it easily absorbs contaminants from the external environment. If the storage tank is made of low-grade plastic, it is more likely to dissolve organic matter, increasing the water's conductivity and leading to a decline in water quality.

2. Vent: Most ultrapure water systems have a vent to maintain pressure balance. However, this vent allows outside air to enter, introducing bacteria and particulate matter, which can contaminate the stored ultrapure water. Therefore, it is recommended to install a filter at the vent.

3. Storage Tank: Some ultrapure water systems use flat-bottomed tanks. During maintenance, it is difficult to completely drain the water from the bottom of the tank. This residual water becomes a breeding ground for bacteria. Therefore, we recommend using a conical water tank. This allows for complete drainage during maintenance, preventing bacteria from growing and multiplying.

4. Disinfection: Even in the most enclosed environments, bacterial growth is a concern, as even tiny microorganisms can form biofilms and contaminate the water. Therefore, disinfection of ultrapure water is crucial.

This concludes our discussion on the reasons for water quality degradation in ultrapure water systems. To ensure the quality of the produced water, the selection of the storage tank is also essential. Every component in an ultrapure water system is vital.