Lisebelisoa tsa kalafo ea metsi a litšila tsa Electro-Fenton li ipapisitse haholo-holo le melao-motheo ea Fenton catalytic oxidation, e emelang ts'ebetso e tsoetseng pele ea oxidation e sebelisoang bakeng sa ho senyeha le kalafo ea metsi a litšila a nang le mahloriso a mangata, a chefo le a tlhaho.
Mokhoa oa Fenton reagent o qapiloe ke rasaense oa Lefora Fenton ka 1894. Bohlokoa ba karabelo ea Fenton reagent ke tlhahiso ea catalytic ea hydroxyl radicals (•OH) ho tsoa ho H2O2 boteng ba Fe2+. Lipatlisiso mabapi le theknoloji ea electro-Fenton li qalile lilemong tsa bo-1980 e le mokhoa oa ho hlola mefokolo ea mekhoa ea setso ea Fenton le ho ntlafatsa katleho ea kalafo ea metsi. Theknoloji ea Electro-Fenton e kenyelletsa tlhahiso e tsoelang pele ea Fe2+ le H2O2 ka mekhoa ea electrochemical, ka bobeli li arabela hang-hang ho hlahisa hydroxyl radicals e sebetsang haholo, e leng se lebisang ho senyeha ha metsoako ea lintho tse phelang.
Ha e le hantle, e hlahisa li-reagent tsa Fenton ka kotloloho nakong ea ts'ebetso ea electrolysis. Molao-motheo oa motheo oa karabelo ea electro-Fenton ke ho qhibiliha ha oksijene holim'a thepa e loketseng ea cathode, e leng se lebisang tlhahisong ea electrochemical ea hydrogen peroxide (H2O2). H2O2 e hlahisitsoeng e ka arabela ka catalyst ea Fe2+ tharollong ho hlahisa moemeli ea matla oa oxidizing, hydroxyl radicals (•OH), ka karabelo ea Fenton. Tlhahiso ea •OH ka ts'ebetso ea electro-Fenton e tiisitsoe ka liteko tsa probe ea lik'hemik'hale le mekhoa ea spectroscopic, joalo ka ho tšoasa spin. Lits'ebetsong tse sebetsang, bokhoni ba oxidation bo matla bo sa khetheng ba •OH bo sebelisoa ho tlosa metsoako ea lintho tse phelang e sa fetoheng.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Theknoloji ea Electro-Fenton e sebetsa haholo-holo kalafong ea pele ho leachate e tsoang ho lithōle, maro a kopaneng, le metsi a litšila a indasteri a tsoang liindastering tse kang lik'hemik'hale, meriana, chefo e bolaeang likokoanyana, ho daea, masela le ho plata ka motlakase. E ka sebelisoa hammoho le lisebelisoa tse tsoetseng pele tsa oxidation tse sebelisang motlakase ho ntlafatsa haholo ho bola ha metsi a litšila ha ho ntse ho tlosoa CODCr. Ho feta moo, e sebelisoa bakeng sa kalafo e tebileng ea leachate e tsoang ho lithōle, maro a kopaneng, le metsi a litšila a indasteri a tsoang lik'hemik'hale, meriana, chefo e bolaeang likokoanyana, ho daea, masela, ho plata ka motlakase, jj., e fokotsa CODCr ka kotloloho ho fihlela maemo a ho ntša metsi. E ka boela ea kopanngoa le "lisebelisoa tsa electro-Fenton tse pulsed" ho fokotsa litšenyehelo tsa ts'ebetso ka kakaretso.
Nako ea poso: Loetse-07-2023
