Madzi a m'nyanja mankhwala opangira madzi opangira madzi ro system Wopanga

Mankhwala ndondomeko

Tekinoloje ya EDI ndi njira yatsopano yochotsera mchere yomwe imaphatikiza ma electrodialysis ndi kusinthana kwa ion.Njirayi imagwiritsa ntchito mphamvu za electrodialysis ndi ion exchange exchange ndikubwezera zofooka zawo.Amagwiritsa ntchito kusinthana kwa ayoni kuti achotse mchere wambiri kuti athane ndi vuto la kutulutsa mchere kosakwanira chifukwa cha electrodialysis polarization.Imagwiritsanso ntchito electrodialysis polarization kuti ipange H+ ndi OH- ion kuti ipangitsenso utomoni wokha, womwe umagonjetsa kuipa kwa kukonzanso kwamankhwala pambuyo pakulephera kwa utomoni.Chifukwa chake, ukadaulo wa EDI ndi njira yabwino yochotsera mchere.

Panthawi ya EDI desalination, ma ion m'madzi amasinthidwa ndi ayoni a haidrojeni kapena ma hydroxide mu utomoni wosinthanitsa ndi ma ion, ndiyeno ma ion awa amasamukira m'madzi okhazikika.Kusinthana kwa ion uku kumachitika muchipinda chamadzi chosungunuka cha unit.Mu chipinda chamadzi chosungunuka, ma hydroxide ions mu anion exchange resin exchange ndi anions m'madzi, ndi ayoni a haidrojeni mu cation exchange resin exchange ndi ma cations m'madzi.Ma ions osinthidwawo amasuntha pamwamba pa mipira ya utomoni pansi pa mphamvu yamagetsi ya DC ndikulowa m'chipinda chamadzi chokhazikika kudzera mukusinthana kwa ion.

Ma anions oyimitsidwa molakwika amakopeka ndi anode ndikulowa m'chipinda choyandikana ndi madzi kudzera pa nembanemba ya anion, pomwe nembanemba yoyandikana nayo imawalepheretsa kudutsa ndikutsekereza ma ion awa m'madzi okhazikika.Ma cations omwe ali ndi mphamvu zabwino amakopeka ndi cathode ndikulowa m'chipinda choyandikira chamadzi kudzera mu nembanemba ya cation, pomwe nembanemba ya anion yoyandikana imawalepheretsa kudutsa ndikutchinga ma ion awa m'madzi okhazikika.

M'madzi okhazikika, ma ion ochokera mbali zonse ziwiri amasunga kusalowerera ndale kwamagetsi.Pakalipano, kusamuka kwamakono ndi ion kumagwirizana, ndipo zamakono zimakhala ndi magawo awiri.Gawo limodzi limachokera ku kusamuka kwa ma ion ochotsedwa, ndipo gawo lina limachokera ku kusamuka kwa ayoni amadzi omwe amalowa mu H + ndi OH- ions.Madzi akamadutsa m'madzi osungunula ndi zipinda zamadzi zokhazikika, ma ion pang'onopang'ono amalowa m'chipinda chozungulira chamadzi ndipo amatuluka mu gawo la EDI ndi madzi okhazikika.

Pansi pa gradient yamphamvu kwambiri, madzi amapangidwa ndi electrolyzed kuti apange kuchuluka kwa H+ ndi OH-, ndipo izi zomwe zili pamalowo zimapanga H+ ndi OH- mosalekeza kukonzanso utomoni wosinthira ion.Chifukwa chake, utomoni wosinthanitsa ndi ion mugawo la EDI sichifuna kusinthika kwamankhwala.Iyi ndiye njira ya EDI yochotsa mchere.

Mawonekedwe aukadaulo

1. Ikhoza kutulutsa madzi mosalekeza, ndipo resistivity ya madzi opangidwa ndi apamwamba, kuyambira 15MΩ.cm mpaka 18MΩ.cm.
2. Kuchuluka kwa madzi kukhoza kufika pa 90%.
3. Madzi opangidwa ndi okhazikika ndipo safuna kusinthika kwa asidi-base.
4. Palibe madzi onyansa omwe amapangidwa panthawiyi.
5. Kuwongolera kwadongosolo kumapangidwira kwambiri, ndi ntchito yosavuta komanso yotsika kwambiri ya ntchito.T

Zofunikira zoyambirira

1. Madzi odyetsa ayenera kukhala madzi opangidwa ndi RO ndi ma conductivity a ≤20μs / cm (akulimbikitsidwa kukhala <10μs / cm).
2. Mtengo wa pH uyenera kukhala pakati pa 6.0 ndi 9.0 (omwe akuyenera kukhala pakati pa 7.0 ndi 9.0).
3. Kutentha kwa madzi kukhale pakati pa 5 ndi 35 ℃.
4. Kulimba (kuwerengeredwa ngati CaCO3) kuyenera kukhala kosakwana 0.5 ppm.
5. Zinthu zakuthupi ziyenera kukhala zosakwana 0.5 ppm, ndipo mtengo wa TOC uyenera kukhala ziro.
6. Ma oxidants ayenera kukhala ocheperapo kapena ofanana ndi 0.05 ppm (Cl2) ndi 0.02 ppm (O3), zonse zikhale ziro monga momwe zilili bwino.
7. Miyezo ya Fe ndi Mn iyenera kukhala yocheperapo kapena yofanana ndi 0.01 ppm.
8. Kuchuluka kwa silicon dioxide kuyenera kukhala kosakwana 0,5 ppm.
9. Mpweya wa carbon dioxide uyenera kukhala wosakwana 5 ppm.
Palibe mafuta kapena mafuta omwe ayenera kuzindikiridwa.