工作原理：
● 供给原水进入EDI系统，主要部分流入树脂/膜内部，而另一部分沿膜板外侧流动，以洗去透出膜外的离子。
● 树脂截留水中的溶存离子。
● 被截留的离子在电极作用下，阴离子向正极方向运动，阳离子向负极方向运动。
● 阳离子透过阳离子膜，排出树脂/膜之外。
● 阴离子透过阴离子膜，排出树脂/膜之外。
● 浓缩了的离子从废水流路中排出。
● 无离子水从树脂/膜内流出。

EDI is a revolutionary technology for the water treatment. This technology uses the demineralization process of electrical regeneration ion exchange instead of traditional demineralization process of mixed ion exchange DI. The resin and selective ion membrane can reach high desalination effect by exchanging the ion, and if the process is combined with reverse osmosis, the water quality can be up to 10-15MΩ.CM.
EDI uses the standard modules in design and can be assembled into arbitrary system according to the requirement, water output can be up to 1-450 m³/h.

Working principle
The supplied raw water enters into EDI system, main portion flows into resin/membrane, and the other portion flows along the outboard of the membrane plate, in order to clean the ion outside the membrane.
Resin captures undissolved ion.
The captured ion is forced by the electrode, anion moves to anode, and cation moves to cathode.
Cation permeates cation membrane, and discharges from resin / membrane.
Anion permeates anion membrane, and discharges from resin / membrane.
Concentrated ion discharges from the wastewater flow channel.
Non-ion water discharges from resin / membrane.

规格 Specification

产水水质 Water quality of the water output

进水要求 Requirement of the water output

E-cell EDI 工作原理图
E-cell EDI Working schematic diagram

EDI 流程参考图
EDI Flow Chart

图形符号表  Graphic symbol table