Kayan aikin jiyya na Electro-Fenton da farko sun dogara ne akan ka'idodin Fenton catalytic oxidation, wanda ke wakiltar ci gaba da tsarin iskar oxygen da ake amfani da shi don lalata da kuma kula da babban taro, mai guba, da ruwan sharar kwayoyin halitta.
Masanin kimiyya na Faransa Fenton ya ƙirƙira hanyar Fenton reagent a cikin 1894. Mahimmancin amsawar Fenton shine haɓakar haɓakar radicals na hydroxyl (•OH) daga H2O2 a gaban Fe2+. Bincike kan fasahar Electro-Fenton ya fara ne a cikin 1980s a matsayin wata hanya ta shawo kan iyakokin hanyoyin Fenton na gargajiya da haɓaka ingantaccen maganin ruwa. Fasahar Electro-Fenton ta ƙunshi ci gaba da samar da Fe2 + da H2O2 ta hanyar hanyoyin lantarki, tare da duka biyun nan da nan suna amsawa don samar da radicals mai ƙarfi na hydroxyl, wanda ke haifar da lalata ƙwayoyin ƙwayoyin cuta.
Mahimmanci, kai tsaye yana haifar da reagents na Fenton yayin aikin lantarki. Babban ka'idar electro-Fenton dauki shine narkar da iskar oxygen a saman kayan cathode mai dacewa, wanda ke haifar da samar da electrochemical na hydrogen peroxide (H2O2). H2O2 da aka samar zai iya amsawa tare da Fe2 + mai kara kuzari a cikin maganin don samar da wakili mai ƙarfi, hydroxyl radicals (•OH), ta hanyar amsawar Fenton. An tabbatar da samar da •OH ta hanyar tsarin lantarki-Fenton ta hanyar gwaje-gwajen bincike na sinadarai da dabarun duban gani, kamar kama tarko. A aikace aikace, da waɗanda ba zaɓaɓɓen ƙarfi hadawan abu da iskar shaka ikon • OH ana amfani da su yadda ya kamata cire recalcitrant Organic mahadi.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Fasaha ta Electro-Fenton tana da amfani da farko a cikin pretreatment na leachate daga filaye, tattara ruwa mai yawa, da ruwan sharar masana'antu daga masana'antu kamar sinadarai, magunguna, magungunan kashe qwari, rini, yadi, da lantarki. Ana iya amfani da shi tare da kayan aikin haɓakawa na electrocatalytic don inganta haɓakar haɓakar ruwa na ruwa yayin cire CODCR. Bugu da ƙari, ana amfani da shi don zurfin jiyya na leachate daga ƙasƙan ƙasa, tattara ruwa mai yawa, da ruwan sharar masana'antu daga sinadarai, magunguna, magungunan kashe qwari, rini, yadi, electroplating, da sauransu, kai tsaye rage CODCr don saduwa da ƙa'idodin fitarwa. Hakanan za'a iya haɗa shi tare da "kayan aikin lantarki-Fenton" don rage yawan farashin aiki.
Lokacin aikawa: Satumba-07-2023
