The laboratory pure water system is designed in this way, and its performance can be imagined how excellent!

       The laboratory pure water system is a very critical part of the systematic service of laboratory construction. Its design is based on the needs of the experimental process to ensure the true repeatability of the experimental results. The corresponding system process design is very different.

The design of the laboratory pure water system should be based on the characteristics of the source water quality, using a new full-membrane double-stage RO membrane process, and scientific and reasonable configuration to ensure that the water quality of the product is stable and up to standard. The operation and maintenance system of the pure water system is fully automatic, and most controls implement one-key operation. The RS485 interface is connected to the remote synchronization monitoring component (optional), which allows the operator to control the system remotely. The RS232 interface can be connected to the computer, and its functions such as water quality monitoring, data download, data recording and printing conform to the Good Laboratory Practice (GLP), and can seamlessly link the laboratory building management system (BMS) to achieve central monitoring.

The overall design of the laboratory pure water system adopts the ion exchange method, and the process is as follows:

1. Raw water→raw water pressure pump→multi-media filter→active carbon filter→water softener→precision filter→cation resin filtration→anion resin filtration→anion-yang resin mixed bed→microporous filtration device → water point;

2. The two-stage reverse osmosis method is adopted, and the process is as follows: Raw water→raw water pressure pump→multi-media filter→active carbon filter→water softener→precision filter→one-stage reverse osmosis→PH adjustment →intermediate water tank→secondary reverse osmosis→purified water tank→pure water pump→microporous filter→water point;

3. The EDI method is adopted, and the process is as follows: laboratory ultrapure water system, ultrapure water equipment raw water → raw water pressure pump→ multi-media filter→ activated carbon filter→ water softener→ precision filter→ One-stage reverse osmosis machine→intermediate water tank→intermediate water pump→EDI system→microporous filter→water point;

4. Raw water→multi-media filter→activated carbon filter→softening water→intermediate water tank→low pressure pump→PH value adjustment→high-efficiency mixer→precision filter→high-efficiency reverse osmosis→intermediate Water tank →EDI water pump→EDI system→microporous filter→ Osmosis is a physical phenomenon. When two waters containing different concentrations of salts are separated by a semi-permeable membrane, it will be found that the water on the side with the less salt content separates through the membrane and penetrates into the water with high salt content. The salt contained in the water does not penetrate, so that the salt concentration on both sides is gradually melted until it is equal.