Oxidative treatment of water pollutant

A tétel rövid nézete
dc.contributor.advisorbeller, gabor
dc.contributor.authorGIDEON, ARI
dc.contributor.departmentDE--Műszaki Kar
dc.date.accessioned2025-06-13T09:56:09Z
dc.date.available2025-06-13T09:56:09Z
dc.date.created2025-05-09
dc.description.abstractThis study investigates the oxidative treatment of Ibuprofen (IP), a widely used non-steroidal anti-inflammatory drug and recognized emerging contaminant, through the application of the Fenton process. Ibuprofen frequently enters aquatic environments due to improper disposal, incomplete metabolism, and inefficiencies in conventional wastewater treatment systems, posing risks to both ecosystems and human health. Given its persistence and bioactivity, advanced oxidation processes (AOPs), particularly the Fenton reaction utilizing hydrogen peroxide (H₂O₂) as an oxidant and ferrous ions (Fe²⁺) as a catalyst were explored for effective degradation. The research focused on evaluating the influence of three key parameters pH, oxidant concentration, and catalyst concentration on the removal of Total Organic Carbon (TOC) as a proxy for organic pollutant degradation. Preliminary experiments confirmed that neither H₂O₂ nor Fe²⁺ alone could significantly reduce TOC; only their combination produced notable removal, validating the necessity of the full Fenton reagent. Kinetic analyses were conducted using both the initial rate method and pseudo-first-order kinetics, with findings indicating that reaction rates were influenced by intermediate species like ferryl ions (FeO₂⁺) and hydroperoxyl radicals, which exhibit lower oxidative power. Comprehensive parametric studies revealed that the optimal conditions for TOC removal occurred at pH ~3, with an oxidant-to-catalyst (ox/cat) ratio of approximately 15, specifically at [Fe²⁺] = 0.078 mM and [H₂O₂] = 1.18 mM. Under these conditions, 80.4% of the TOC was removed within 24 hours. These results align well with previous studies on the Fenton treatment of other contaminants, though variation is expected due to differences in pollutant structure and reactivity. Conclusively, this work demonstrates that the Fenton process is a viable and efficient method for degrading ibuprofen in aqueous solutions. By optimizing pH and reactant ratios, the process achieves significant mineralization of organic content, offering a promising approach for treating pharmaceutical-laden wastewater
dc.description.courseKörnyezetmérnöki
dc.description.degreeMSc/MA
dc.format.extentoxidative treatment of ibuprofen, oxidizing ibuprofen as a water pollutant.
dc.identifier.urihttps://hdl.handle.net/2437/391715
dc.language.isoen
dc.rights.infoHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjecttotal organic carbon, feton reagent, hydrogen per oxide
dc.subject.dspaceKörnyezettudományok
dc.titleOxidative treatment of water pollutant
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