Midziyo yekurapa mvura yakasviba yeElectro-Fenton inonyanya kushandiswa pakushandisa Fenton catalytic oxidation, iyo inomiririra nzira yepamusoro ye oxidation inoshandiswa pakuderedza nekurapa mvura yakasviba ine chepfu yakawanda, ine makemikari akawanda.
Nzira yeFenton reagent yakagadzirwa nenyanzvi yesainzi yekuFrance Fenton muna 1894. Chinangwa chikuru cheFenton reagent reaction ndechekugadzira hydroxyl radicals (•OH) kubva kuH2O2 paine Fe2+. Tsvagiridzo pamusoro petekinoroji yeelectro-Fenton yakatanga muma1980 senzira yekukunda zvipingamupinyi zvenzira dzechinyakare dzeFenton uye kuwedzera kushanda zvakanaka kwekurapa mvura. Tekinoroji yeElectro-Fenton inosanganisira kugadzirwa kweFe2+ neH2O2 kuburikidza nenzira dzemagetsi, zvese zvichikurumidza kuita kuti pave nehydroxyl radicals inoshanda zvakanyanya, zvichikonzera kuparara kwemakemikari eorganic.
Chaizvoizvo, inogadzira zvakananga maFenton reagents panguva yekushandiswa kwemagetsi. Nheyo huru yekushandiswa kwemagetsi-Fenton ndeyekunyungudika kweokisijeni pamusoro pechinhu chakakodzera che cathode, zvichikonzera kugadzirwa kwehydrogen peroxide (H2O2) nemagetsi. H2O2 inogadzirwa inogona kuita neFe2+ catalyst mumushonga kuti igadzire chinhu chine simba che oxidizing agent, hydroxyl radicals (•OH), kuburikidza neFenton reaction. Kugadzirwa kwe •OH kuburikidza nekushandiswa kwemagetsi-Fenton kwakasimbiswa kuburikidza nekuyedzwa kwemakemikari uye matekiniki e spectroscopic, akadai se spin trapping. Mukushandiswa kwakakosha, kugona kwe oxidation kwakasimba kwe •OH kunoshandiswa kubvisa zvinobudirira recalcitrant organic compounds.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Tekinoroji yeElectro-Fenton inonyanya kushandiswa pakurapa leachate kubva mudura remarara, mvura dzakasanganiswa, uye mvura yakasviba yemumaindasitiri kubva kumaindasitiri akadai semakemikari, mishonga, mishonga yezvipembenene, kudhaya, machira, uye electroplating. Inogona kushandiswa pamwe chete nemidziyo yemagetsi inokatyamadza yepamusoro ye oxidation kuti ivandudze zvakanyanya kuora kwemvura yakasviba uku ichibvisa CODCr. Pamusoro pezvo, inoshandiswa pakurapa zvakadzama leachate kubva mudura remarara, mvura dzakasanganiswa, uye mvura yakasviba yemumaindasitiri kubva kumakemikari, mishonga yemishonga, mishonga yezvipembenene, kudhaya, machira, electroplating, nezvimwewo, zvichideredza zvakananga CODCr kuti isangane nezvinodiwa zvekuburitsa. Inogona zvakare kusanganiswa ne "pulsed electro-Fenton equipment" kuderedza mari yekushandisa.
Nguva yekutumira: Gunyana-07-2023
