Data from my experience with pharmaceutical laboratory pure water retrofit projects shows that a qualified EDI module can increase the resistivity of influent water to over 15 MΩ·cm, laying the foundation for downstream fine treatment. Many users neglect pre-treatment water quality requirements, directly feeding influent TDS exceeding 20 mg/L into the EDI system. Within just three months, this leads to issues like module scaling and degradation, and a sharp drop in desalination efficiency. Our DIEN Water Treatment EDI ultrapure water equipment, however, meets the high-quality water needs of laboratories, semiconductors, and pharmaceutical industries.
Laboratory Pure Water Equipment
Polishing Resin Post-Treatment Compatibility Standards
Polishing resin cannot be used pre-treatment; it is only suitable for post-treatment after the EDI module. This is a detail that many procurement and maintenance personnel easily overlook. Under normal operating conditions, post-polishing resin can stably increase the resistivity of EDI outlet water to 18.25 MΩ·cm, meeting the stringent water standards for precision experiments and cell culture. Furthermore, the resin's lifespan is directly linked to the process; proper post-installation can extend the consumable's lifespan to 8-12 months.
For laboratory pure water equipment, choosing DIEN Water Treatment, a source manufacturer, is more reliable. Our equipment is robust in quality, highly adaptable to various operating conditions, and offers a comprehensive range of products, including laboratory ultrapure water equipment, EDI ultrapure water equipment, softened water equipment, well water iron and manganese removal filters, quartz sand filters, activated carbon filters, single and double-stage reverse osmosis equipment, and wastewater and greywater reuse equipment. We can meet the water needs of various laboratories, industries, and commercial applications.
