Electrodialysis (ED) ke ts'ebetso e sebelisang lera le kenellang hanyane le tšimo ea motlakase ea motlakase o tobileng ho tsamaisa likaroloana tse qhibilihang tse tjhajisitsoeng (tse kang li-ion) ka mokhoa o ikhethileng ho tsoa tharollong. Ts'ebetso ena ea karohano e tsepamisa maikutlo, e qhibilihisa, e ntlafatsa le ho hloekisa litharollo ka ho lebisa li-solute tse tjhajisitsoeng hole le metsi le likarolo tse ling tse sa tjhajisoang. Electrodialysis e fetohile ts'ebetso e kholo ea yuniti ea lik'hemik'hale 'me e bapala karolo ea bohlokoa theknolojing ea karohano ea lera. E sebelisoa haholo liindastering tse kang ho tlosa letsoai ka lik'hemik'hale, ho tlosa letsoai ka metsing a leoatle, lijo le meriana, le kalafo ea metsi a litšila. Libakeng tse ling, e se e le mokhoa o ka sehloohong oa ho hlahisa metsi a nooang. E fana ka melemo e kang tšebeliso e tlase ea matla, melemo e meholo ea moruo, kalafo e bonolo pele ho nako, lisebelisoa tse tšoarellang, moralo oa sistimi e tenyetsehang, ts'ebetso e bonolo le tlhokomelo, ts'ebetso e hloekileng, ts'ebeliso e tlase ea lik'hemik'hale, tšilafalo e fokolang ea tikoloho, nako e telele ea bophelo ba sesebelisoa, le sekhahla se phahameng sa ho hlaphoheloa ha metsi (hangata se tloha ho 65% ho isa ho 80%).
Mekhoa e tloaelehileng ea ho hlahloba ka motlakase e kenyelletsa electrodeionization (EDI), electrodialysis reversal (EDR), electrodialysis e nang le li-membrane tse metsi (EDLM), electrodialysis ea mocheso o phahameng, electrodialysis ea mofuta oa roll, electrodialysis ea lera la bipolar, le tse ling.
Electrodialysis e ka sebelisoa bakeng sa kalafo ea mefuta e fapaneng ea metsi a litšila, ho kenyeletsoa le metsi a litšila a electroplating le metsi a litšila a silafalitsoeng ke tšepe e boima. E ka sebelisoa ho ntša li-ion tsa tšepe le lintho tse ling metsing a litšila, e leng se lumellang ho hlaphoheloa le ho sebelisoa hape ha metsi le mehloli ea bohlokoa ha ho ntse ho fokotsoa tšilafalo le mesi e tsoang. Lithuto li bontšitse hore electrodialysis e ka khutlisa koporo, zinki, esita le ho oxidize Cr3+ ho Cr6+ nakong ea kalafo ea litharollo tsa passivation ts'ebetsong ea tlhahiso ea koporo. Ho phaella moo, electrodialysis e kopantsoe le phapanyetsano ea li-ion bakeng sa ho hlaphoheloa ha litšepe tse boima le li-acid ho tsoa metsing a litšila a acid pickling lits'ebetsong tsa indasteri. Lisebelisoa tsa electrodialysis tse entsoeng ka ho khetheha, tse sebelisang li-resin tsa anion le cation exchange e le li-fillers, li sebelisitsoe ho phekola metsi a litšila a tšepe e boima, ho fihlela ho sebelisoa hape ha closed-loop le ho se ntše metsi. Electrodialysis e ka boela ea sebelisoa ho phekola metsi a litšila a alkaline le metsi a litšila a tlhaho.
Phuputso e entsoeng Laboratoring ea Naha ea Taolo ea Tšilafalo le Tšebeliso e Ncha ea Lisebelisoa Chaena e ithutile kalafo ea metsi a litšila a hlatsoang a alkali a nang le khase ea mohatla ea epoxy propane chlorination ho sebelisoa electrolysis ea membrane ea ion exchange. Ha motlakase oa electrolysis e ne e le 5.0V 'me nako ea potoloho e le lihora tse 3, sekhahla sa ho tlosoa ha COD sa metsi a litšila se fihlile ho 78%, 'me sekhahla sa ho hlaphoheloa ha alkali se ne se le holimo ho 73.55%, se sebeletsa e le phekolo e sebetsang ea pele ho li-unit tse latelang tsa biochemical. Theknoloji ea electrodialysis e boetse e sebelisitsoe ho phekola metsi a litšila a organic acid a nang le mahloriso a mangata, ka mahloriso a tlohang ho 3% ho isa ho 15%, ke Shandong Luhua Petrochemical Company. Mokhoa ona o fella ka hore ho se be le masala kapa tšilafalo ea bobeli, 'me tharollo e kopaneng e fumanoeng e na le 20% ho isa ho 40% acid, e ka sebelisoang hape le ho phekoloa, e fokotsang acid ka metsing a litšila ho isa ho 0.05% ho isa ho 0.3%. Ho phaella moo, Sinopec Sichuan Petrochemical Company e sebelisitse sesebelisoa se ikhethileng sa electrodialysis ho phekola metsi a litšila a condensate, e leng se fihlelletseng bokgoni bo phahameng ba kalafo ba 36 t/h, ka bongata ba ammonium nitrate metsing a kopaneng bo fihlang ka holimo ho 20%, mme se fihlelle sekgahla sa ho hlaphoheloa se fetang 96%. Metsi a hlwekileng a phekotsweng a ne a na le karolo ya ammonium nitrogen ya boima ba ≤40mg/L, e fihlelang maemo a tikoloho.
Nako ea poso: Loetse-07-2023
