【Scheme Comparison】

Currently Preparation chemical process industry with ultra-pure water is basically these three, the rest of the process, mostly in the above three on the basis of the basic process with different combinations derived. Now their strengths and weaknesses are shown in the following:
1、The first ion exchange resin is the advantage of low initial investment, the space occupied by a small, but the disadvantage is the need for frequent regeneration of ions, pH-consuming, and destructive to the environment has some.
2、The second two-stage reverse osmosis equipment, which is characterized by the early vote in the recent comparative method using ion exchange resin is higher, but not resin regeneration. The disadvantage is related to the original film to be regularly cleaned or replaced, the water quality is not too high, relatively speaking, most of 1us/cm can do about, so do not require higher quality reverse osmosis is often used when the back and then mixed bed (Yin and Yang Fu-bed) checks.
3、The third reverse osmosis as a pre-matched electro-deionization (EDI) device, which is the ultra-pure water system to take the most economical and environmentally friendly ultra-pure water preparation, they do not need to be regenerated with acid and alkali Continuous Preparation of ultra-pure water, nothing destructive to the environment. The disadvantage is more than the initial investment is relatively too expensive in two ways.

【Technical advice】

Preparation of ultra-pure water is usually the traditional ion exchange resin extraction, but the use of ion exchange resins usually require frequent regeneration of resin, that is a waste of material and labor cost, our company