Ko ngā taputapu maimoatanga waipara Electro-Fenton e hangai ana i ngā mātāpono o te whakakōkītanga catalytic Fenton, e tohu ana i tētahi tukanga whakakōkītanga matatau e whakamahia ana mō te whakakino me te maimoatanga o te waipara kukū teitei, paitini, me te waipara waro.
I hangaia te tikanga matū Fenton e te kaipūtaiao Wīwī, a Fenton, i te tau 1894. Ko te ngako o te tauhohenga matū Fenton ko te whakaputanga matū o ngā rauropi hydroxyl (•OH) mai i te H2O2 i te aroaro o te Fe2+. I tīmata te rangahau mō te hangarau electro-Fenton i ngā tau 1980 hei huarahi ki te wikitoria i ngā herenga o ngā tikanga Fenton tuku iho, me te whakarei ake i te whai huatanga o te maimoatanga wai. Ko te hangarau electro-Fenton e uru ana ki te whakaputa tonu i te Fe2+ me te H2O2 mā roto i ngā tikanga electrochemical, me te tauhohe tonu o ēnei e rua ki te whakaputa i ngā rauropi hydroxyl tino kaha, ka arahi ki te pakaru o ngā matū waro.
Ko te tikanga, ka whakaputa tika i ngā matū Fenton i te wā o te tukanga electrolysis. Ko te kaupapa matua o te tauhohenga electro-Fenton ko te whakarewatanga o te hāora i runga i te mata o te rauemi cathode e tika ana, ka arahina ki te whakaputanga electrochemical o te hauwai peroxide (H2O2). Ka taea e te H2O2 i hangaia te tauhohe ki te whakakorikori Fe2+ i roto i te otinga hei whakaputa i tētahi kaihoko waikura kaha, ngā radical hydroxyl (•OH), mā te tauhohenga Fenton. Kua whakaūhia te whakaputanga o •OH mā te tukanga electro-Fenton mā roto i ngā whakamātautau matū me ngā tikanga spectroscopic, pērā i te spin trapping. I roto i ngā tono mahi, ka whakamahia te kaha waikura kaha kore-whiriwhiri o •OH hei tango pai i ngā matū waro uaua.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Ko te hangarau Hiko-Fenton te mea nui e whakamahia ana mō te maimoatanga o mua i te wai para mai i te whenua ururua, ngā wai kukū, me ngā wai para ahumahi mai i ngā ahumahi pēnei i te matū, te rongoā, te patu pepeke, te tae, te kakahu, me te whakakikorua hiko. Ka taea te whakamahi tahi me ngā taputapu whakahāngaitanga matatau hiko hei whakapai ake i te pirau o te wai para me te tango i te CODCr. Hei tāpiri, ka whakamahia mō te maimoatanga hohonu o te wai para mai i te whenua ururua, ngā wai kukū, me ngā wai para ahumahi mai i te matū, te rongoā, te patu pepeke, te tae, te kakahu, te whakakikorua hiko, me ētahi atu, me te whakaiti tika i te CODCr kia tutuki ai ngā paerewa tukunga. Ka taea hoki te whakakotahi me ngā "taputapu hiko-Fenton kua whakapakeketia" hei whakaiti i ngā utu whakahaere katoa.
Wā tuku: Hepetema-07-2023
