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Tignoolajiyada Electro-Fenton

Qalabka daaweynta biyaha wasakhda ah ee Electro-Fenton wuxuu ugu horreyntii ku salaysan yahay mabaadi'da Fenton oxidation catalytic, oo ka dhigan habka oksaydhka sare ee loo isticmaalo nabaad-guurka iyo daawaynta xoogga-saarista, sunta, iyo biyaha wasakhda ah ee organic.

Habka Fenton reagent waxaa ikhtiraacay saynisyahan Faransiis ah Fenton 1894. Nuxurka falcelinta Fenton reagent waa jiilka kicinta ee radicals hydroxyl (•OH) ee ka yimaada H2O2 iyadoo ay joogaan Fe2+. Cilmi-baadhis ku saabsan tignoolajiyada elektro-Fenton waxay bilaabatay 1980-meeyadii si ay uga gudubto xaddidaadyada hababka Fenton-dhaqameedka iyo kor u qaadista waxtarka daaweynta biyaha. Tiknoolajiyada Electro-Fenton waxay ku lug leedahay wax soo saarka joogtada ah ee Fe2+ iyo H2O2 iyada oo loo marayo hababka elektaroonigga ah, labaduba waxay isla markiiba ka falceliyaan si ay u dhaliyaan xaglaha hydroxyl aadka u firfircoon, taasoo horseedaysa hoos u dhaca xeryahooda organic.

Asal ahaan, waxay si toos ah u soo saartaa reagents Fenton inta lagu jiro habka korantada. Mabda'a aasaasiga ah ee falcelinta electro-Fenton waa kala dirida oksijiinta dusha sare ee walxaha cathode ee ku habboon, taasoo horseedaysa jiilka korantada ee hydrogen peroxide (H2O2). H2O2-ka la soo saaray ayaa markaa ka falcelin kara Fe2 + kicinta xalka si loo soo saaro wakiilka oksijiinta awoodda leh, xaglaha hydroxyl (•OH), iyada oo loo marayo falcelinta Fenton. Soo saarista OH iyada oo loo marayo habka elektro-Fenton waxa lagu xaqiijiyay tijaabooyin kiimiko ah iyo farsamooyin muuqaal ah, sida dabinka lafdhabarta. Codsiyada la taaban karo, awoodda oksaydheynta xooggan ee aan la dooran ee OH ayaa looga faa'iideystaa in si wax ku ool ah looga saaro xeryahooda organic-ga ah.

O2 + 2H+ + 2e → H2O2;

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

Tiknoolajiyada Electro-Fenton ayaa ugu horayn lagu dabaqi karaa ka-hortagga wasakhda wasakhda ah ee ka timaadda qashin-qubka, cabitaannada xoogga leh, iyo biyaha wasakhda ah ee warshadaha ee warshadaha sida kiimikaad, dawooyinka, sunta cayayaanka, dheeynta, dharka, iyo korantada. Waxaa loo isticmaali karaa iyadoo lala kaashanayo qalabka oksaydheynta sare ee koronto-catalytic si si weyn loo wanaajiyo biodegradability ee biyaha wasakhda iyadoo meesha laga saarayo CODCR. Intaa waxaa dheer, waxaa loo isticmaalaa daawaynta qoto dheer ee leachat ka soo qashin-qubka, dareerayaasha xoogga leh, iyo biyaha wasakhda warshadaha ee kiimikada, farmashiyaha, sunta cayayaanka, midabaynta, dunta, korantada, iwm, si toos ah u yaraynaysa CODCr si ay ula kulmaan heerarka dheecaan Waxa kale oo lagu dari karaa "qalabka electro-Fenton pulsed" si loo yareeyo kharashka guud ee hawlgalka.


Waqtiga boostada: Sebtembar-07-2023