Mukamagwiritsa ntchito utomoni, kuwonongeka kwa zinthu zoyimitsidwa, mafuta ndi mafuta ziyenera kupewedwa, komanso kupezeka kwamadzimadzi ena amadzimadzi pa utomoni kuyenera kupewedwa. Chifukwa chake, ayoni wachitsulo wolemera ayenera kuchotsedwa asanafike madzi amadzimadzi a asidi asadalowe mu utomoni wa anion kuti apewe kupindika kwa zinthu zolemera pa utomoni. Chida chilichonse chikamayenderera, madzi onyansa omwe ali mgawo la AC abwezeretsedwanso mu thanki yamadzi, kenako ndikuviika m'madzi apampopi kapena m'madzi oyera. Utomoni ukadzaza, sikoyenera kulowetsa ndikuyimitsa muyeso loyambirira kwa nthawi yayitali utadzaza, ndipo uyenera kutsukidwa munthawi yake.
Kaya ndi utomoni wa cation kapena utomoni wa anion, ikagwiritsidwa ntchito kwa mayendedwe angapo, mphamvu ya AC imatsika. Kumbali imodzi, chifukwa chakuchepa kwa mphamvu ndikuti kusankha sikukwanira, ndipo kuchuluka kwa ayoni pa utomoni womwe suli pansi pang'onopang'ono amasonkhanitsidwa, zomwe zimakhudza kusinthana kwachilendo; Kumbali inayi, H2CrO4 ndi H2Cr2O7 mu chromium yomwe ili ndi madzi amdima imakhala ndi vuto mu zakuthupi, zomwe zimapangitsa kuti cr3 + ichuluke kwambiri mu utomoni, womwe umakhudza magwiridwe antchito a utomoni. Chifukwa chake, utomoni ukakhala ndi kuchepa kwakukulu, kuyambitsa kwake kuyenera kuchitidwa.
Njira yoyeserera utomoni wa anion iyenera kukhala yosiyana malingana ndi madzi owonongeka. Zochitika zapakhomo pochiza chromium yokhala ndi madzi onyansa ndi anion resin activation ndizopambana. Ntchitoyi ndi iyi: lowetsani utomoni wa anion mu 2-2.5mol / 1h2so4 yankho pambuyo pake, kenako mutenge nawo gawo pa NaHSO3 posakanikirana pang'ono, ndikuchepetsa cr6 + pa utomoni mpaka cr3 +. Utomoni wonyowa mu yankho pamwambapa kwa tsiku limodzi ndi usiku, kenako ndikusambitsidwa ndi madzi omveka. Bwerezani zomwe zatchulidwazi m'mawu 1-2, kenako chotsani cr6 + ndi cr3 + mu utomoni, kenako mugwiritse ntchito NaOH kuti musinthe.
Cholinga chachikulu cha kutsegulira kwa cation ndikuchotsa ma ayoni olemera omwe amapezeka pa utomoni, makamaka mizera yamitengo yayikulu kwambiri yolimba ndi utomoni, monga fe3 +, cr3 +. Itha kuyambitsidwa mu vivo. Kuchuluka kwa madzi omwe adatsegulidwa ndiwiri kuchuluka kwa utomoni. Zida za Hydrochloric acid zokhala ndi 3.0mol / 1 zimagwiritsidwa ntchito. Mtambo wosanjikiza umanyowa ndi kuthamanga kwa nthawi 1-2 ukulu wa utomoni, ndipo ndendeyo ndi 2.0-2.5mol / 1 sulfuric acid solution. Zimatenga tsiku limodzi ndi tsiku (osachepera maola 8). Fe3 +, cr3 + ndi ayoni ena olemera kwambiri mu utomoni amachotsedwa. Pambuyo kutsuka, utomoni ukhoza kugwiritsidwa ntchito.
Post nthawi: Jun-09-2021