Dual Stage Reverse Osmosis Water Purification Equipment With EDI System

Product Specification

0.5 Tons Of Dual-Stage Reverse Osmosis Treatment Equipment With EDI Ultrapure Water System

Products Description

EDI (Electrodeionization), also known as continuous electrodeionization technology, which scientifically integrates electrodialysis technology and ion exchange technology, through the selective permeability of cation and anion membrane for cation and anion and the exchange of ion exchange resin for ions in water to realize the directional migration of ions in water under the action of electric field to achieve the depth of water purification and desalination, and The hydrogen ion and hydroxide ion generated by water electrolysis continuously regenerate the loaded resin, so the EDI water production process does not need acid or alkali chemical regeneration to continuously produce high-quality ultrapure water, which has the advantages of advanced technology, compact structure and easy operation, and can be widely used in the fields of electric power, electronics, pharmaceuticals, chemical industry, foodstuffs and laboratories, and it is a green revolution in water treatment technology. The water quality has the best stability.

Parameter Table

Application Areas

1,Semiconductor and electronics industry-ultrapure water
2,Biological and pharmaceutical industry-purified water
3,Power plant-boiler make-up water
4,Surface coating
5,Consumer goods and cosmetics industry
6,Instead of all kinds of distilled water
7,Other industries requiring high water purity.

Principles of operation

Electrodeionization (EDI) system is mainly under the action of DC electric field, through the partition of the water dielectric ions in the water to occur directional movement, the use of exchange membranes on the selection of ions through the role of water quality to purify a scientific water treatment technology.

Electrodialyzer between a pair of electrodes, usually by the anionic membrane, cationic membrane and partition (a, b) many groups of alternating arrangements, constituting a thick room and a light room (that is, cations can be through the cationic membrane, anions can be through the anionic membrane). The cations in the water in the fresh chamber migrate to the negative pole through the cation membrane and are retained by the anion membrane in the concentrated chamber; the anions in the water migrate to the positive pole through the anion membrane and are retained by the cation membrane in the concentrated chamber, so that the number of ions in the water in the fresh chamber gradually decreases and it becomes freshwater, while the water in the concentrated chamber becomes concentrated water due to the continuous influx of anions and cations into the concentrated chamber, and the concentration of dielectric ions rises constantly and it becomes concentrated water, so that it can achieve the purposes of desalination, purification, concentration or refinement. 

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