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Comparison of ferrate(VI) and Fenton process for removal of microplastics from aqueous media
Summary
This Croatian-language study compares ferrate(VI) and Fenton oxidation processes for removing microplastics from water, evaluating which treatment is more effective. Understanding the efficiency of chemical treatment methods is important for developing water purification systems that can eliminate plastic particles before they reach consumers.
Plastični materijali nezamjenjivi su u današnjem svijetu. Zbog svoje jednostavne proizvodnje i ekonomske isplativosti, jednostavnog oblikovanja te odličnih mehaničkih i kemijskih svojstava, koristi se u svim aspektima našega života. Primjena i proizvodnja iz godine u godinu raste, ali raste i problem zbrinjavanja plastičnog otpada. U okolišu plastični otpad pod utjecajem prirodnih sila fragmentira se na manje čestice veličine do 5 mm, koje zajednički nazivam mikroplastikom. U okviru ovoga rada ispitano je uklanjanje modelne mikroplastike, odnosno čestica poli(etilen tereftalata) i polipropilena, iz vodenog medija primjenom dva usporedna procesa: oksidacije/koagulacije feratima(VI) te Fenton procesom. Uzorci su karakterizirani pomoću infracrvene spektroskopije s Fourierovom transformacijom (FTIR) kako bi se identificirale kemijske promjene uzoraka. Temeljem dobivenih rezultata ustanovljena je degradacija uzoraka polipropilena, pri čemu je identificiran nastanak dvostrukih veza kod polipropilena. Međutim, kod poli(etilen tereftalata) FTIR analizom nisu ustanovljene jednoznačne promjene.
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