In the electroplating coating industry, in order to increase the surface finish, brightness, and adhesion of the plated parts, the preparation of the electroplating solution requires pure water with conductivity below 15uS/cm; in addition, the conductivity of 10uS/cm is also required when rinsing the plating parts. The following electroplating pure water is used for cleaning. The electroplating industry water treatment system includes a pure water system for electroplating solution preparation before electroplating, a rare metal recovery rinsing water in electroplating rinsing wastewater, a zero discharge system for recycling electroplating wastewater. Usually the system consists of pretreatment, ultrafiltration, reverse osmosis (RO), ion exchange, EDI equipment, etc., to meet the requirements of various water quality in the electroplating industry.
The traditional preparation process of electroplating pure water equipment is usually prepared by ion exchange resin, but the use of ion exchange resin usually requires frequent resin regeneration, which is costly and wasteful of labor. After years of practice, our company combines the latest membrane The separation technology adopts the combination of low pressure reverse osmosis and ion exchange system (or EDI) to prepare electroplating ultrapure water. Compared with the traditional process, this process has low operating cost and reliable operation. Compared with the latest technology, it has low cost, and the reverse osmosis technology is safe and reliable.
The process of electroplating pure water can be roughly divided into the following categories: