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Title:Odstranjevanje diklofenaka iz vode z izbranimi adsorbenti
Authors:ID Krautič, Anja (Author)
ID Simonič, Marjana (Mentor) More about this mentor... New window
ID Islamčević Razboršek, Maša (Comentor)
Files:.pdf VS_Krautic_Anja_2024.pdf (1,67 MB)
MD5: 218119EE945061C84C926D7EF8EB626B
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Prisotnost farmacevtskih snovi v naravnih vodah je bila v zadnjem desetletju deležna številnih raziskav zaradi njihovih potencialno škodljivih vplivov na zdravje ljudi in morebitnih negativnih učinkov na okolje. Zaradi svojih lastnosti diklofenak ostaja biološko aktiven v vodnem okolju in zlahka prehaja v prehranjevalno verigo. Zato je nujno, da diklofenak odstranimo iz odpadne vode. Adsorpcija je učinkovit in preprost postopek, ki se lahko uporablja za odstranjevanje diklofenaka iz vode. Namen diplomskega dela je bilo učinkovito odstraniti diklofenak iz vode z različnimi adsorbenti. Eksperimentalni del je vključeval uporabo klinoptilolita, aktivnega oglja in hidro-oglja, modificiranega s kalijevim hidroksidom, pripravo in karakteriziracijo z Brunauer-Emmett-Teller-jevo analizo, merjenjem zeta potenciala ter Fourierjevo transformacijsko infrardečo spektroskopijsko analizo. Uspešni adsorbenti so bili klinoptilolit, aktivno oglje in oglje, modificirano s kalijevim hidroksidom, medtem ko pa toreficirana materiala iz stelje in lesa nista bila primerna za adsorpcijo diklofenaka. Primerjali smo učinkovitost adsorbentov za odstranjevanje diklofenaka iz vode. Eksperimente smo izvajali v laboratoriju pri različnih pH vrednostih, začetnih koncentracijah diklofenaka in masah adsorbentov. Za analizo vsebnosti diklofenaka smo uporabili spektrofotometrično metodo. Učinkovitost adsorpcije diklofenaka na aktivno oglje je bila popolna (do 100 %), za modificirano hidro-oglje s KOH se giblje od 86,1 % do 99,9 %, medtem ko je bila najvišja učinkovitost adsorpcije na klinoptilolit le 29,0 %. Rezultati so pokazali, da ima med preizkušenimi adsorbenti aktivno oglje maksimalno adsorpcijsko kapaciteto, ki je znašala 122,43 mg/g.
Keywords:diklofenak, adsorpcija, aktivno oglje, klinoptilolit, učinkovitost
Place of publishing:Maribor
Publisher:[K. Zavrl]
Year of publishing:2024
PID:20.500.12556/DKUM-90054-1a2c1928-0451-5bfd-0b7f-e5f5fe165ecf New window
UDC:628.316:661.183(043.2)
COBISS.SI-ID:213710083 New window
Publication date in DKUM:05.09.2024
Views:55
Downloads:32
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
:
KRAUTIČ, Anja, 2024, Odstranjevanje diklofenaka iz vode z izbranimi adsorbenti [online]. Bachelor’s thesis. Maribor : K. Zavrl. [Accessed 23 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=90054
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License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:21.08.2024

Secondary language

Language:English
Title:Removal of diclofenac from water using selected adsorbents
Abstract:The presence of pharmaceutical substances in natural waters has attracted the attention of researchers over the last decade due to their potentially harmful effects on human health and possible negative effects on the environment. Due to its properties, diclofenac remains biologically active in the aquatic environment and easily enters the food chain. It is therefore necessary to remove diclofenac from wastewater. Adsorption is an effective and simple process that can be used to remove diclofenac from water. The aim of the thesis was to effectively remove diclofenac from water using different adsorbents. The experimental part included the use of clinoptilolite, activated carbon and potassium hydroxide modified hydrocarbon, preparation and characterization by Brunauer-Emmett-Teller analysis, zeta potential measurement and Fourier transform infrared spectroscopy analysis. Successful adsorbents were clinoptilolite, activated carbon and carbon modified with potassium hydroxide, while torrefied litter and wood materials were not suitable for diclofenac adsorption. The effectiveness of adsorbents for removing diclofenac from water was compared. The laboratory experiments were carried out at different pH values, initial diclofenac concentrations and masses of adsorbents. The spectrophotometric method was used to analyze the diclofenac content. The total adsorption efficiency of diclofenac on activated carbon was achieved. The adsorption capacity of hydro-carbon modified with KOH ranges from 86.1% to 99.9%, while the highest adsorption efficiency on clinoptilolite was only 29.0%. The results show that of the adsorbents tested, activated carbon had the highest adsorption capacity at 122.43 mg/g.
Keywords:diclofenac, adsorption, activated carbon, clinoptilolite, efficiency


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