Why does EDI module differential pressure rise and what should be checked first?

The primary reason for rising EDI (Electrodeionization) module differential pressure is often due to fouling or clogging of the membranes or resin beds. This can occur from improper pre-treatment, scaling, or biological growth. The first step in troubleshooting should involve checking the pre-filters and ensuring that the feed water quality meets the required standards.

Key factors to consider include:

• Inspecting the pre-filtration system for blockages or wear.
• Verifying the RO (Reverse Osmosis) output quality, as poor RO performance can lead to increased EDI load.
• Checking for any signs of scaling or biofilm formation on the EDI modules.

To prevent further issues, ensure regular maintenance schedules are followed and monitor key parameters such as conductivity, pH, and flow rates. If problems persist, consult with a professional service team like Chuxin Mingwei, who specialize in industrial water treatment systems and can provide tailored solutions.