Electro-Fenton midziyo yekuchenesa mvura yetsvina inonyanya kuve yakavakirwa pamisimboti yeFenton catalytic oxidation, inomiririra yepamberi oxidation maitiro anoshandiswa kushatisa uye kurapwa kwemvura yakakwira, ine chepfu, uye organic tsvina.
Nzira yeFenton reagent yakagadzirwa nemusayendisiti wechiFrench Fenton muna 1894. Mhedzisiro yeFenton reagent reaction ndiyo inokonzera chizvarwa che hydroxyl radicals (• OH) kubva kuH2O2 pamberi peFe2 +. Tsvagiridzo pahunyanzvi hwe electro-Fenton yakatanga muma1980s senzira yekukunda zvipimo zvechinyakare nzira dzeFenton uye kuwedzera kunaka kwekurapa kwemvura. Tekinoroji yeElectro-Fenton inosanganisira kuenderera mberi kwekugadzirwa kweFe2+ neH2O2 kuburikidza nemagetsi emagetsi, uye zvese zviri zviviri zvinokurumidza kuita kuti zvibudise zvakanyanya anoshanda hydroxyl radicals, zvichikonzera kushatiswa kweorganic compounds.
Chaizvoizvo, inogadzira zvakananga Fenton reagents panguva ye electrolysis process. Nheyo yakakosha ye electro-Fenton reaction ndeyekuparara kweokisijeni pamusoro peiyo yakakodzera cathode zvinhu, zvichitungamira kune electrochemical chizvarwa chehydrogen peroxide (H2O2). Iyo H2O2 inogadzirwa inogona kubva yaita neFe2 + catalyst mumhinduro kuburitsa ine simba oxidizing agent, hydroxyl radicals (• OH), kuburikidza neFenton reaction. Kugadzirwa kwe • OH kuburikidza ne electro-Fenton process yakasimbiswa kuburikidza nemakemikari probe bvunzo uye spectroscopic matekiniki, akadai spin trapping. Mumashandisirwo anoshanda, iyo isingasarudze yakasimba oxidation kugona kwe • OH inoshandiswa kubvisa zvinobudirira recalcitrant organic compounds.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Tekinoroji yeElectro-Fenton inonyanya kushanda mukudzoreredzwa kweleachate kubva mukuraswa kwemarara, zvinwiwa zvakanyura, uye mvura yetsvina yemaindasitiri kubva kumaindasitiri akadai semakemikari, mishonga, mushonga wezvipembenene, dhayi, machira, uye electroplating. Inogona kushandiswa pamwe chete ne electrocatalytic advanced oxidation midziyo yekuvandudza zvakanyanya biodegradability yemvura yakasviba uchibvisa CODCr. Pamusoro pezvo, inoshandiswa pakurapa kwakadzama kweleachate kubva mukurasira, zvinwiwa zvakanyungudutswa, uye mvura yetsvina yemumaindasitiri kubva kumakemikari, mishonga, mushonga wezvipembenene, dhayi, machira, electroplating, nezvimwewo, ichideredza zvakananga CODCr kuti isangane nemiyero yekuburitsa. Inogona zvakare kusanganiswa ne "pulsed electro-Fenton zvishandiso" kudzikisa mutengo wese wekushanda.
Nguva yekutumira: Sep-07-2023
