prikaz prve stranice dokumenta Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom
  Download
PDF 1.12 MB
master's thesis
Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom
2023. urn:nbn:hr:109:069483
Ćosić, Marija
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Process Engineering
Sub-department of Bioprocess Engineering

Cite this document

Ćosić, M. (2023). Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:069483

Ćosić, Marija. "Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2023. https://urn.nsk.hr/urn:nbn:hr:109:069483

Ćosić, Marija. "Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2023. https://urn.nsk.hr/urn:nbn:hr:109:069483

Ćosić, M. (2023). 'Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 15 January 2025, https://urn.nsk.hr/urn:nbn:hr:109:069483

Ćosić M. Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2023 [cited 2025 January 15] Available at: https://urn.nsk.hr/urn:nbn:hr:109:069483

M. Ćosić, "Primjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:109:069483

Please login to the repository to save this object to your list.
Metadata
TitlePrimjena aktivnog ugljena dobivenog od heljdinih ljuskica za uklanjanje malahitnog zelenila iz vode adsorpcijom
Title (english)Application of Activated Carbon Obtained from Buckwheat Hulls for the Removal of Malachite Green from Water by Adsorption
AuthorMarija Ćosić
MentorNatalija Velić (mentor)
Committee memberMirna Habuda-Stanić (predsjednik povjerenstva)
Committee memberNatalija Velić (član povjerenstva)
Committee memberLidija Jakobek Barron (član povjerenstva)
Committee memberIvana Tomac (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 country2023-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Engineering
Abstract
Cilj rada bio je istražiti mogućnost primjene aktivnog ugljena dobivenog pirolizom od heljdinih ljuskica za uklanjanje kationskog bojila malahitnog zelenila adsorpcijom iz modelnih otopina bojila i sintetske otpadne vode s dodatkom bojila. Primjenjivost biosorbensa ispitana je provedbom šaržnih adsorpcijskih eksperimenata. Istraženi su utjecaj koncentracije biosorbensa (0,4 – 1,4 \(g dm^{-3}\)), veličine čestica, vremena kontakta (1 – 180 min), početne masene koncentracije bojila (1 – 100 \(mg dm^{-3}\)) i temperature (15 – 45 °C). Povećanjem koncentracije biosorbensa došlo je do smanjenja količine bojila adsorbirane po jedinici mase biosorbensa te do rasta postotka uklanjanja bojila. Biosorbens veličine čestica u rasponu 0,075 – 0,75 mm pokazao je bolju učinkovitost adsorpcije u usporedbi s onim veličine čestica 0,1 – 0,5 mm. Povećanjem početne koncentracije bojila (10 – 100 \(mg dm^{-3}\)) došlo je do povećanja količine bojila adsorbirane po jedinici mase biosorbensa, te smanjenja postotka uklanjanja bojila. Povećanjem temperature od 15 °C do 45 °C došlo je do povećanja količine bojila adsorbirane po masi biosorbensa (od 31,9 do 46,0 \(mg g^{-1}\)), kao i do povećanja postotak uklanjanja bojila (od 63,8 do 92,1 %). Proces adsorpcije bojila iz sintetske otpadne vode s dodatkom bojila bio je učinkovitiji u usporedbi s modelnim otopinama bojila. Eksperimentalni podaci analizirani su primjenom Freundlichovog i Langmuirovog modela, pri čemu su oba modela dobro opisivala proces adsorpcije malahitnog zelenila na aktivni ugljen od heljdinih ljuskica. Kinetički model pseudo-drugog reda bolje je opisao eksperimentalne podatke od modela pseudo-prvog reda.
Abstract (english)
The aim of this work was to investigate the possibility of using activated carbon obtained by pyrolysis of buckwheat flakes to remove the cationic dye malachite green by adsorption from model solutions of dyes and synthetic wastewater with the addition of dyes. The applicability of the biosorbent was tested by conducting batch adsorption experiments. The influence of the concentration of the biosorbent (0.4 - 1.4 \(g dm^{-3}\)), particle size, contact time (1 - 120 min), initial dye concentration (1 - 100 \(mg dm^{-3}\)) and temperature (15 - 45 °C) was investigated. Increasing the concentration of the biosorbent resulted in a decrease in the amount of dye adsorbed per unit mass of the biosorbent and an increase in the percentage of dye removal. Biosorbent with particle size of 0.075 – 0.75 mm showed better performance than biosorbent with particle size of 0.1 – 0.5 mm. Increasing the initial dye concentration (10 – 100 \(mg dm^{-3}\)) resulted in an increase in the amount of dye adsorbed per unit mass of biosorbent and a decrease in the percentage of dye removal. Increasing the adsorption temperature also increased the amount of dye adsorbed per unit mass of biosorbent (from 31.9 to 46.0 \(mg g^{-1}\)) and the percentage of dye removal (from 63.8 to 92.1%). Adsorption of malachite green from synthetic wastewater with the addition of dye had higher efficiency compared to model dye solutions. The obtained data were analysed using Freundlich and Langmuir models and both models described the adsorption process well. The pseudo-second order kinetic model agreed better with the experimental data than the pseudo-first order model.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:069483
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 Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) icon
Created on2023-09-28 13:56:10