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master's thesis
Adsorpcija diklofenaka na aktivne ugljene
Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. urn:nbn:hr:109:176690
Matanović, Katarina
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Applied Chemistry and Ecology
Sub-department of Biochemistry and Toxicology

Institutional repository: Repository of the Faculty of Food Technology Osijek

Cite this document

Matanović, K. (2022). Adsorpcija diklofenaka na aktivne ugljene (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:176690

Matanović, Katarina. "Adsorpcija diklofenaka na aktivne ugljene." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. https://urn.nsk.hr/urn:nbn:hr:109:176690

Matanović, Katarina. "Adsorpcija diklofenaka na aktivne ugljene." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. https://urn.nsk.hr/urn:nbn:hr:109:176690

Matanović, K. (2022). 'Adsorpcija diklofenaka na aktivne ugljene', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:109:176690

Matanović K. Adsorpcija diklofenaka na aktivne ugljene [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2022 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:109:176690

K. Matanović, "Adsorpcija diklofenaka na aktivne ugljene", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:109:176690

Metadata
TitleAdsorpcija diklofenaka na aktivne ugljene
Title (english)Adsorption of Diclofenac onto Activated Carbon
AuthorKatarina Matanović
MentorMarija Stjepanović (mentor)
MentorMirna Habuda-Stanić (komentor)
Committee memberLidija Jakobek Barron (predsjednik povjerenstva)
Committee memberMirna Habuda-Stanić (član povjerenstva)
Committee memberIvana Tomac (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Applied Chemistry and Ecology)
(Sub-department of Biochemistry and Toxicology)
Osijek
Defense date and country2022-09-09, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Prisutnost farmaceutika u vodenom okolišu i njihov potencijalni negativni utjecaj na ekosustav privukla je veliku pozornost znanstvenika. Upotreba farmaceutskih spojeva kod potrošača je u porastu, a njihovo nepotpuno uklanjanje tijekom pročišćavanja otpadnih voda dovodi do onečišćenja vodenih sustava. Metode koje se koriste za uklanjanje diklofenaka iz vode, između ostalog, uključuju i adsorpciju. Stoga je u ovom radu ispitana učinkovitost uklanjanja diklofenaka adsorpcijom na modificirani aktivni ugljen dobiven iz ljuske lješnjaka i modificiranog i nemodificiranog Cullara (komercijalni proizvod) iz vodenih otopina u šaržnim procesima. Karakterizacija adsorbensa provedena je FTIR-om i izmjeren je zeta-potencijal te određen \(pH_{pzc}\). Utjecaj pH vrijednosti na adsorpcijski kapacitet ispitan je u rasponu pH 2-10, a adsorpcijski mehanizam opisan je izotermnim i kinetičkim modelima. Prema dobivenim podacima, maksimalni adsorpcijski kapacitet od 48,7 mg/g postignut je s modificiranim Cullarom. Eksperimentalni podaci dobro opisuju Freundlichov i Langmuirov model izoterme. Dodatno je mehanizam adsorpcije ispitan kinetičkim modelima pseudo-prvog i pseudo-drugog reda. Aktivni ugljen iz ljuske lješnjaka kao alternativa komercijalnim aktivnim ugljenima, pokazao se učinkovitim adsorbensom za uklanjanje diklofenaka iz vodenih otopina.
Abstract (english)
Recently, the presence of pharmaceutical contaminants in water bodies and their potential negative impact on the ecosystem gained much attention. The usage of pharmaceutical compounds by consumers follows an increasing trend, and their incomplete removal during wastewater treatment results in contamination of water surfaces. The methods used to remove DCF from water, among others, include adsorption. Therefore, the adsorption of diclofenac on modified activated carbon produced from hazelnut shells and modified and unmodified Cullar (a commercial product) from water solutions in batch processes was investigated. The adsorbent material was characterised by FTIR and the zeta-potential was measured, as well as the pH pzc was determined. The effect of pH on the adsorption capacity was evaluated in the range of 2-10 and the adsorption mechanism was described by isothermal and kinetic studies. According to obtained data, the maximum adsorption uptake of 48.7 mg/g was achieved with modified Cullar. The isotherm data were in good agreement with both, Freundlich and Langmuir isotherm models. In order to describe adsorption mechanisms, kinetic models were also calculated. Adsorption kinetics followed the pseudo-second-order model closely. Activated carbon from hazelnut shells proved to be an effective adsorbent for diclofenac removal.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:176690
Study programmeTitle: Food Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) icon
Created on2022-09-12 08:57:40