The Effect of Inlet Water Temperature on Ultrapure Water System

Ultrapure water systems require specific inlet water temperatures to operate effectively. They function optimally within an optimal temperature range. So, how exactly does inlet water temperature affect an ultrapure water system?

I. High Water Temperature:

High water temperatures significantly impact the reverse osmosis (RO) membrane of an ultrapure water system. First, high temperatures decrease the desalination rate of the RO membrane system, and the regeneration cycle of subsequent desalination equipment also shortens. When the water temperature exceeds a certain level, the pores of the RO membrane will excessively expand, resulting in irreversible losses. Furthermore, high water temperatures promote bacterial growth and reproduction. Increased water temperature leads to a corresponding increase in bacterial metabolic and growth rates. Once bacteria enter the RO system, they quickly form a biofilm on the RO membrane surface, causing a rapid decrease in the RO system's permeate flow and desalination rate, while simultaneously contaminating the permeate.

II. Low Water Temperature Situation:

At 25℃, the reverse osmosis membrane's water production is normal. Generally, for every 1℃ drop in temperature, the RO membrane's water production decreases by approximately 3%. When the water temperature drops below 5℃, the RO membrane will stop producing water. Therefore, temperature has a significant impact on the reverse osmosis's water production.

This concludes the introduction to the effects of high temperatures on ultrapure water systems. We hope this information is helpful. After understanding the above effects, try to ensure that the inlet water temperature is within a certain range to avoid damaging the ultrapure water system.