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master's thesis
Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala
2018. urn:nbn:hr:109:132054
Bunjik, Ivona
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Process Engineering
Sub-department of Bioprocess Engineering

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Bunjik, I. (2018). Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:132054

Bunjik, Ivona. "Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2018. https://urn.nsk.hr/urn:nbn:hr:109:132054

Bunjik, Ivona. "Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2018. https://urn.nsk.hr/urn:nbn:hr:109:132054

Bunjik, I. (2018). 'Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 08 September 2024, https://urn.nsk.hr/urn:nbn:hr:109:132054

Bunjik I. Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2018 [cited 2024 September 08] Available at: https://urn.nsk.hr/urn:nbn:hr:109:132054

I. Bunjik, "Desorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:109:132054

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TitleDesorpcija sintetskog bojila metilenskog modrila s obojenog lignoceluloznog adsorbensa upotrebom organskih i eutektičkih otapala
Title (english)Desorption of synthetic dye methylene blue from dye-loaded lignocellulosic adsorbent using organic solvents
AuthorIvona Bunjik
MentorNatalija Velić (mentor)
MentorValentina Bušić (komentor)
Committee memberDajana Gašo-Sokač (predsjednik povjerenstva)
Committee memberNatalija Velić (član povjerenstva)
Committee memberValentina Bušić (član povjerenstva)
Committee memberMarija Nujić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Process Engineering)
(Sub-department of Bioprocess Engineering)
Osijek
Defense date and country2018-10-11, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Mogućnost uklanjanja sintetskih bojila iz obojenih otpadnih voda adsorpcijom na jeftine adsorbense, poput otpadnih lignoceluloznih materijala, intenzivno se istražuje. Obojeni lignocelulozni materijal zaostao nakon procesa uklanjanja bojila potrebno je zbrinuti, pri čemu se prije zbrinjavanja materijal može obraditi na način da se s materijala desorbira bojilo odgovarajućim otapalima ili da se biološki obradi s ciljem razgradnje bojila. Desorpcijom bojila s obojenog materijala, otvara se i mogućnost ponovnog korištenja desorbiranog bojila. Cilj ovog rada bio je provesti desorpciju sintetskog bojila metilenskog modrila s uzoraka obojenog pivskog tropa pomoću različitih organskih otapala: polarnih protičnih, polarnih aprotičnih i nepolarnih otapala, sustava višekomponentnih otapala te eutektičkih otapala. Najveći učinak desorpcije bojila (99 %) postignut je primjenom multikomponentnog sustava otapala MeOH:DMF:H2O u omjeru 1 : 1 : 1. Od otapala koja pripadaju skupini polarnih protičnih otapala najbolji učinak desorpcije pokazala je voda. U skupini polarnih aprotičnih otapala najbolji učinak desorpcije (39 %) pokazao je DMF, dok su se nepolarna otapala pokazala neučinkovitima u desorpciji metilenskog modrila s obojenog pivskog tropa. Najveći učinak desorpcije (67 %) u skupini eutektičih otapala pokazalo je otapalo ChCl : urea = 1 : 2.
Abstract (english)
The adsorptive removal of synthetic dyes from dye-loaded wastewater using low-cost adsorbents, such as waste lignocellulosic materials, has been intensively investigated. The dye-loaded lignocellulosic material remaining after the dye removal process has to be disposed of properly. Before the disposal, the material can be treated either in a way that the dye is desorbed from the material using appropriate solvents or is biologically treated in order to biodegrade the adsorbed dye. Desorption of dye from the dye-loaded material opens the possibility of desorbed dye re-use. The aim of this work was to investigate the desorption of the synthetic dye methylene blue from dye-loaded brewers' spent grains using various organic solvents: polar protic, polar aprotic, nonpolar, multicomponent solvent systems and eutectic solvents. The highest dye desorption efficiency (99%) was achieved using a multicomponent solvent system of MeOH: DMF: H2O in a ratio of 1: 1: 1. From the polar protic solvents group, the highest efficiency of desorption was achieved by water. DMF was the most efficient solvent (39%) out of the polar aprotic solvents group, while the desorption efficiency of non-polar solvents was very low. The highest desorption effect (67%) in the group of eutectic solvents was achieved using the solvent ChCl: urea = 1: 2.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:132054
Study programmeTitle: Process Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka procesnog inženjerstva (magistar/magistra inženjer/inženjerka procesnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-10-29 13:00:55