EDI技術(shù)/EDl technology：

EDI(Electrodeionization)技術(shù)是國際上20世紀90年代開始逐漸發(fā)展起來的新型純水、超純水制取技術(shù)。該技術(shù)巧妙地將電滲析技術(shù)和離子交換技術(shù)相融合，通過明、陽離子交換渠對陰、陽離子的選擇性誘過作用與離子交換樹脂對離子的交換作用，在直流電場的作用下實現(xiàn)離子的定向遷移，從而完成水的深磨除墊，同時水電離解產(chǎn)生的氫離子和氫氧根離子對離子交換樹脂進行再生，因此不需酸堿化學(xué)再生而能連續(xù)制取超純水。

EDllElectrodeionizaionlis a new pure water and ulra pure water making technology which developed from 1990s.  ombies elecrodialysis and ion-exchange, uses seleclivehpemealina fealure of anion-caion exchange membrane to caion and anion, ion exchane fealre of resin. fore ons moving direced under DC electnc. Saltin waler wilbe removedMeanwhile, H+ and OH- from water electrodialysis will regenerate the resins, so no acid or alkali is needed.

工作原理/Working principle：

反滲透(R0)膜是由透過液芯柱、隔離網(wǎng)、膜、篩網(wǎng)、外殼組成的聚酰胺復(fù)合膜，過濾孔徑僅為0.0001微米，其操作壓力在0.6-1.51pa，脫鹽率高達99%，化學(xué)離子、細菌、病毒都不能通過，隨廢水排出，只允許體積小于0.0001微米的水分子和氧分子通過，從而達到凈化的目的。Reverse osmosis membrane is a PA compound membrane made ofliquid core columns, separaing nel, membrane, screen and shel. ts filraion diameteris only 0.0001 micronunder 0.6.1.5Mpa working presure, deslnation ralie can be upto 99%, none chemical ions, gemms and virus can pas and be discharge with waste waier, ony waier molecule anoxygen molecule which smaller than 0.0001 micron can pass. That's how to getpure water.