Izixhobo zonyango lwamanzi amdaka ze-Electro-Fenton zisekelwe kakhulu kwimigaqo ye-Fenton catalytic oxidation, emele inkqubo ye-oxidation ephucukileyo esetyenziselwa ukwehlisa nokulungisa amanzi amdaka anoxinzelelo oluphezulu, olunetyhefu, nolwendalo.
Indlela ye-Fenton reagent yaqanjwa yisazinzulu saseFransi uFenton ngo-1894. Eyona nto iphambili kwi-Fenton reagent reaction kukuveliswa kwe-hydroxyl radicals (•OH) evela kwi-H2O2 xa kukho i-Fe2+. Uphando ngetekhnoloji ye-electro-Fenton lwaqala ngeminyaka yoo-1980 njengendlela yokoyisa imida yeendlela zemveli ze-Fenton kunye nokuphucula ukusebenza kakuhle konyango lwamanzi. Itekhnoloji ye-Electro-Fenton ibandakanya ukuveliswa okuqhubekayo kwe-Fe2+ kunye ne-H2O2 ngeendlela ze-electrochemical, zombini zisabela ngoko nangoko ukuvelisa i-hydroxyl radicals esebenzayo kakhulu, nto leyo ekhokelela ekuwohlokeni kweekhompawundi ze-organic.
Ngokwenyani, ivelisa ngokuthe ngqo ii-reagents zeFenton ngexesha lenkqubo ye-electrolysis. Umgaqo osisiseko we-electro-Fenton reaction kukunyibilika kweoksijini kumphezulu we-cathode material efanelekileyo, okukhokelela ekuvelisweni kwe-hydrogen peroxide (H2O2) nge-electrochemical. I-H2O2 evelisiweyo inokusabela nge-Fe2+ catalyst kwisisombululo ukuvelisa i-agent enamandla ye-oxidizing, i-hydroxyl radicals (•OH), nge-Fenton reaction. Ukuveliswa kwe-•OH ngenkqubo ye-electro-Fenton kuqinisekisiwe ngovavanyo lwe-chemical probe kunye neendlela ze-spectroscopic, ezifana ne-spin trapping. Kwizicelo ezisebenzayo, amandla e-oxidation aqinileyo angakhethiyo e-•OH asetyenziswa ukususa ngempumelelo ii-recalcitrant organic compounds.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Itekhnoloji ye-Electro-Fenton isetyenziswa kakhulu ekunyangweni kwe-leachate evela kwindawo yokulahla inkunkuma, ulwelo oluxutyiweyo, kunye namanzi amdaka emizi-mveliso avela kumashishini afana neekhemikhali, amayeza, izibulala-zinambuzane, ukudaya, impahla yokuthunga, kunye ne-electroplating. Ingasetyenziswa kunye nezixhobo ze-electrocatalytic advanced oxidation ukuphucula kakhulu ukubola kwamanzi amdaka ngelixa kususwa i-CODCr. Ukongeza, isetyenziselwa unyango olunzulu lwe-leachate evela kwindawo yokulahla inkunkuma, ulwelo oluxutyiweyo, kunye namanzi amdaka emizi-mveliso avela kumakhemikhali, amayeza, izibulala-zinambuzane, ukudaya, impahla yokuthunga, i-electroplating, njl.njl., ukunciphisa ngokuthe ngqo i-CODCr ukuze ihlangabezane nemigangatho yokukhupha. Ingadibaniswa "nezixhobo ze-electro-Fenton ezityhalwayo" ukunciphisa iindleko zokusebenza zizonke.
Ixesha lokuthumela: Sep-07-2023
