Razgradnja pesticida i farmaceutika u vodi primjenom ferata (VI)

master's thesis

• Title (english): Application of ferrate(VI) for degradation of pesticides and pharmaceutics in water
• Author: Gabrijela Biloš
• Mentor: Ana Lončarić Božić (mentor)
• Committee member: Ana Lončarić Božić (predsjednik povjerenstva)
• Committee member: Hrvoje Kušić (član povjerenstva)
• Committee member: Šime Ukić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2018-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Pesticidi i farmaceutici su organski spojevi visoke kemijske stabilnosti. Otporni su na biološku razgradnju kao i razgradnju pod utjecajem Sunčevog zračenja. Budući da tehnologije koje se koriste u primarnom i sekundarnom stupnju pročišćavanja komunalnih otpadnih voda nisu dizajnirane za uklanjanje pesticida i farmaceutika, potrebno je razviti dodatne metode obrade za njihovo učinkovito uklanjanje. Kao moguće rješenje nameće se ferat(VI), [FeO4]2-, koji ima istovremenu sposobnost razgradnje tvari oksidacijom, dezinficiranja vode te uklanjanja suspendiranih čestica i teških metala. Cilj ovog istraživanja bio je ispitati oksidaciju sedam pesticida i pet farmaceutika feratom(VI). Tijekom istraživanja ispitan je utjecaj koncentracije oksidansa i pH vrijednosti na stupanj razgradnje ispitivanih spojeva. Utvrđeno je kako koncentracija oksidansa utječe na stupanj razgradnje pesticida i farmaceutika, dok se pH vrijednost nije se pokazala značajnim parametrom za razgradnju većine ispitivanih spojeva. Razgradnja je opisana modelom odzivnih površina te su određeni optimalni uvjeti procesa.

Abstract (english)

Pesticides and pharmaceutics are organic compounds of high chemical stability. They are resistant to biodegradation and degradation under the influence of sunlight. Since the technologies used in primary and secondary wastewater treatment of are not designed to remove pesticides and pharmaceutics, other alternative methods need to be developed to remove them effectively. As a possible solution, ferrate(VI), [FeO4]2-, a chemical compound that simultaneously exibits oxidation, disinfection and coagulation properties is imposed. The aim of this study was to investigate the oxidation of seven pesticides and five pharmaceutics using ferrate(VI) as oxidant. During the study, the influence of ferrate(VI) concentration and pH value on the degradation of the investigated compounds was examined. It was found that the concentration of ferrate(VI) affects the degradation of pesticides and pharmaceutics, while the pH value is not a significant parameter for the degradation of most investigated compounds. The degradation was described by the Response Surface Methodology and the optimal process conditions were determined.

• Keywords: ferat(VI); pesticidi; farmaceutici; obrada otpadnih voda; metoda odzivnih površina
• Keywords (english): ferrate(VI); pesticides; pharmaceutics; wastewater treatment; response surface methodology
• Language: croatian
• URN:NBN: urn:nbn:hr:149:358378
• Study programme: Title: Environmental Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka ekoinženjerstva (magistar/magistra inženjer/inženjerka ekoinženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-10-27 12:44:35