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master's thesis
Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H
diplomski rad
2021. urn:nbn:hr:167:556870
Rak, Anđela
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Rak, A. (2021). Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:556870

Rak, Anđela. "Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:167:556870

Rak, Anđela. "Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:167:556870

Rak, A. (2021). 'Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:556870

Rak A. Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2021 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:167:556870

A. Rak, "Ravnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:167:556870

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Metadata
TitleRavnoteža adsorpcije Cu i Co-iona iz binarnih otopina na humusu Potgrond H : diplomski rad
Title (english)Adsorption equilibrium of Cu and Co-ions from solutions of humus Potgrond H : diploma thesis
AuthorAnđela Rak
MentorMario Nikola Mužek (mentor)
Committee memberFranko Burčul (predsjednik povjerenstva)
Committee memberMiće Jakić (član povjerenstva)
Committee memberMario Nikola Mužek (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2021-10-29, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu je ispitana adsorpcija bakrovih i kobaltovih iona na humusu u ovisnosti o različitim početnim koncentracijama otopina bakrovih i kobaltovih iona pri stalnoj temperaturi od 27°C, brzini miješanja od 180 okr min -1 i trajanju eksperimenta od 96 h. Rezultati, nakon provedenih ispitivanja, su pokazali da se količina adsorbiranih bakrovih iona na humusu neznatno mijenja s porastom početne koncentracije bakrovih iona u otopini. Pri početnoj koncentraciji od 12,356 mmol dm -3 postignuta je i maksimalna vrijednost količine adsorbiranih bakrovih iona koja iznosi qe = 0,517 mmol g -1 , dok je najviša učinkovitost adsorpcije bakrovih iona 43,612%. Kod adsorpcije kobaltovih iona za početne koncentracije više od ≈ 8 mmol dm -3 , maksimalna vrijednost količine adsorbiranih iona, qe iznosi 0,041 mmol g -1 . Učinkovitost adsorpcije kobaltovih iona je najviša pri početnoj koncentraciji i iznosi 9,091%. Uzimajući u obzir izračunate vrijednosti za koeficijent korelacije R 2 može se zaključiti kako Langmuirov adsorpcijski model pokazuje najbolje slaganje s eksperimentalnim podatcima za adsorpciju bakrovih i kobaltovih iona na humusu.
Abstract (english)
This thesis presents the results of the copper and cobalt ions adsorption on humus depending on different initial concentrations of copper and cobalt ions solutions at a constant temperature of 27°C, a stirring speed of 180 rpm for 96 h. The results of measurements have shown that the amount of copper ions adsorbed on humus is slightly changing with an increase in the initial concentration of copper ions in solution. At the initial concentration of 12.356 mmol dm -3 , the maximum value of the amount of adsorbed copper ions is achieved, with the value of qe = 0.517 mmol g -1 and the value of the highest adsorption efficiency of copper ions is 43.612%. For the adsorption of cobalt ions for initial concentrations greater than ≈ 8 mmol dm -3 , the maximum value of the amount of adsorbed ions, qe is 0.041 mmol g -1 . The adsorption efficiency of cobalt ions is highest at the initial concentration, with the value of 9,091%. Taking the calculated values for the correlation coefficient R 2 into account, Langmuir adsorption model is the most suitable model for describing adsorption of copper and cobalt ions on humus.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:556870
ProjectNumber: IP-2016-06-1316
Title: Biljke kao izvor bioaktivnih sumporovih spojeva te njihova sposobnost hiperakumulacije metala
Title: Plants as a source of bioactive sulphur compounds and their ability to hyperaccumulate metals
Acronym: BioSMe
Leader: Ivica Blažević
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
Course: Materials
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2024-01-24
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Created on2022-01-24 08:56:29