Ikoranabuhanga rya Electro-Fenton

Ibikoresho byo gutunganya amazi yanduye bya Electro-Fenton bishingiye ahanini ku mahame ya Fenton catalytic oxidation, bigaragaza inzira igezweho ya oxidation ikoreshwa mu kwangiza no kuvura amazi yanduye afite uburozi bwinshi, kandi afite uburozi.

Uburyo bwa Fenton reagent bwavumbuwe n'umuhanga mu bya siyansi w'Umufaransa Fenton mu 1894. Ishingiro ry'uburyo Fenton reagent ikora ni ugukora catalytic ya hydroxyl radicals (•OH) iva kuri H2O2 imbere ya Fe2+. Ubushakashatsi ku ikoranabuhanga rya electro-Fenton bwatangiye mu myaka ya 1980 nk'uburyo bwo gutsinda imbogamizi z'uburyo gakondo bwa Fenton no kongera imikorere myiza yo gutunganya amazi. Ikoranabuhanga rya Electro-Fenton rikubiyemo gukora Fe2+ na H2O2 buri gihe binyuze mu buryo bwa electrochemical, byombi bihita bikora kugira ngo bikore hydroxyl radicals zikora cyane, bigatera kwangirika kw'ibintu bikomoka ku bimera.

Mu by’ukuri, ikora reagents za Fenton mu buryo butaziguye mu gihe cy’igikorwa cya electrolysis. Ihame ry’ibanze rya reaction ya electro-Fenton ni ugushonga kwa ogisijeni ku buso bw’ibikoresho bya cathode bikwiye, biganisha ku gukora electrochemical ya peroxide ya hydrogen (H2O2). H2O2 ikorwa ishobora gukorana na catalyst ya Fe2+ mu gisubizo kugira ngo ikore ogisijeni ikomeye, hydroxyl radicals (•OH), binyuze muri reaction ya Fenton. Gukora •OH binyuze muri electro-Fenton byemejwe binyuze mu isuzuma rya chemical probe na tekiniki za spectroscopic, nko gushakisha spin. Mu bikorwa bifatika, ubushobozi bwa •OH budasanzwe bwo gukora ogisijeni bukoreshwa kugira ngo bukureho neza ibintu bikomoka ku bimera bisubira inyuma.

O2 + 2H+ + 2e → H2O2;

H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.

Ikoranabuhanga rya Electro-Fenton rikoreshwa cyane cyane mu gutunganya imyanda iva mu myanda, amazi y’inyongera, n’amazi y’inganda aturuka mu nganda nka shimi, imiti, imiti yica udukoko, irangi, imyenda, n’amashanyarazi. Rishobora gukoreshwa hamwe n’ibikoresho bya oxidation bigezweho bya electrocatalytic kugira ngo rirusheho kubora neza mu gihe rikuraho CODCr. Byongeye kandi, rikoreshwa mu gutunganya imyanda iva mu myanda, amazi y’inyongera, n’amazi y’inganda aturuka mu miti, imiti, imiti yica udukoko, irangi, imyenda, amashanyarazi, nibindi, bigagabanya CODCr mu buryo butaziguye kugira ngo ihuze n’amahame agenga imyanda. Rishobora kandi guhuzwa n’ibikoresho bya electro-Fenton bikoresha amashanyarazi kugira ngo bigabanye ikiguzi cy’imikorere muri rusange.