Product characteristics and process flow of electroplating pure water equipment for electroplating industry

1. Overview of electroplating pure water for electroplating industry

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.

2. Features of electroplating pure water equipment

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.

3. Application field of electroplating pure water machine

  • Pure water for electroplating (gold plating, silver plating, plating, plastic plating, chrome plating, zinc plating), etc., ultrapure water for electroplating for glass coating
  • Pure water for ultrasonic cleaning, ultrasonic cleaning, pure water or ultrapure water for electroless plating, electrophoresis
  • Surface coating, cleaning pure water or ultra-pure water for automobiles, home appliances, and building materials
  • Other required pure water or ultra-pure water for surface treatment

4. Process flow for preparing electroplating pure water

The process of electroplating pure water can be roughly divided into the following categories:

  1. Using ion exchange method, the process is as follows:
    Tap water → electric valve → multi-media filter → activated carbon filter → water softener → intermediate water tank → low pressure pump → precision filter → cation resin bed → anion resin bed → yin and yang resin mixed bed → microporous filter → water point
  2. Two-stage reverse osmosis method is adopted, and the process is as follows:
    Tap water → electric valve → multi-media filter → activated carbon filter → water softener → intermediate water tank → low pressure pump → precision filter → primary reverse osmosis → PH adjustment → mixer → secondary reverse osmosis (reverse osmosis membrane surface with positive Charge) → pure water tank → pure water pump → microporous filter → water point
  3. The high-efficiency reverse osmosis plus EDI method is adopted, and the process is as follows:
    Tap water → electric valve → multi-media filter → activated carbon filter → water softener → intermediate water tank → low pressure pump → PH value adjustment system → high efficiency mixer → precision filter → high efficiency reverse osmosis → intermediate water tank → EDI water pump → EDI system → Microporous filter → water point
EDI equipment

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