EDI是水處理技術(shù)上一項(xiàng)革命性技術(shù)。該技術(shù)應(yīng)用電再生離子交換除鹽工藝取代傳統(tǒng)混合離子交換除鹽工藝DI。通過(guò)離子交換樹(shù)脂及選擇性離子膜達(dá)到高脫鹽效果，與反滲透結(jié)合的聯(lián)合工藝使產(chǎn)水水質(zhì)可達(dá)10-15MΩ .CM的高規(guī)格產(chǎn)水。
EDI采用標(biāo)準(zhǔn)組件設(shè)計(jì)可根據(jù)要求組合成任意系統(tǒng)，產(chǎn)水量可達(dá)1-450m3/h。

工作原理
供給原水進(jìn)入EDI系統(tǒng)，主要部分流入樹(shù)脂／膜內(nèi)部，而另一部分沿膜板外側(cè)流動(dòng)，以洗去透出膜外的離子。
樹(shù)脂截留水中的溶存離子。
被截留的離子在電極作用下，陰離子向正極方向運(yùn)動(dòng)，陽(yáng)離子向負(fù)極方向運(yùn)動(dòng)。
陽(yáng)離子透過(guò)陽(yáng)離子膜，排出樹(shù)脂／膜之外。
陰離子透過(guò)陰離子膜，排出樹(shù)脂／膜之外。
濃縮了的離子從廢水流路中排出。
無(wú)離子水從樹(shù)脂／膜內(nèi)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 10-15M Ω.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 1-450m3/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.