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master's thesis
Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. urn:nbn:hr:149:077678
Dragun, Donna Danijela
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Dragun, D. D. (2024). Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:077678

Dragun, Donna Danijela. "Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:077678

Dragun, Donna Danijela. "Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:077678

Dragun, D. D. (2024). 'Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 March 2025, https://urn.nsk.hr/urn:nbn:hr:149:077678

Dragun DD. Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2024 [cited 2025 March 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:077678

D. D. Dragun, "Procjena ekotoksičnosti cijanida na zelenu algu i bakteriju", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:149:077678

Metadata
TitleProcjena ekotoksičnosti cijanida na zelenu algu i bakteriju
Title (english)Estimation of the ecotoxicity of cyanide on green microalgae and bacteria
AuthorDonna Danijela Dragun
MentorDajana Kučić Grgić (mentor)
Committee memberDajana Kučić Grgić (predsjednik povjerenstva)
Committee memberMartina Miloloža (član povjerenstva)
Committee memberLidija Furač (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2024-09-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cijanidi su spojevi često korišteni u raznim industrijskim procesima kao što su rudarstvo i koksna industrija. Ispuštanjem otpadnih voda ulaze u okoliš, čime predstavljaju značajnu prijetnju vodenim ekosustavima. Jednom kada dospiju u vodene organizme, cijanidi pokazuju visoku toksičnost za žive organizme, ometajući stanično disanje i dovodeći do ozbiljnih ekoloških i zdravstvenih rizika. Zbog njihovih toksičnih učinaka, ključno je ukloniti cijanide iz onečišćene vode kako bi se zaštitili... More okoliš i ljudsko zdravlje. Uklanjanje cijanida iz voda može se učinkovito postići raznim kemijskim i fizikalnim metodama obrade voda, uključujući kloriranje i ozonizaciju te raznim biološkim metodama. Biološke metode predstavljaju održiv i ekološki prihvatljiv pristup, koristeći metaboličke sposobnosti mikroorganizama za razgradnju cijanida. Za određivanje potrebe provođenja određene metode, od velike su važnosti testovi ekotoksičnosti. Testovima ekotoksičnosti određuju se minimalne prihvatljive koncentracije tvari u ekosustavima, pri kojima tvari nemaju štetan učinak. Provođeni su ispitivanjima na testnim organizmima u kontroliranim laboratorijskim uvjetima. U ovom radu testovi ekotoksičnosti provedeni su koristeći dva testna organizma – bakteriju Pseudomonas putida i mikroalgu Chlorella sp. Određena je CFU vrijednost, inhibicija rasta te EC20 i EC50 vrijednosti. Dobiveni rezultati ukazuju na visoku osjetljivost oba testna organizma na prisutnost cijanida, potvrđujući njihovu prikladnost za procjenu štetnih učinaka. Less
Abstract (english)
Cyanides are compounds commonly used in various industrial processes such as mining and coke production. When released into the environment through wastewater discharge, they pose a significant threat to aquatic ecosystems. Once they enter aquatic organisms, cyanides exhibit high toxicity, disrupting cellular respiration and leading to severe ecological and health risks. Due to their toxic effects, it is crucial to remove cyanides from contaminated water to protect the environment and... More human health. Cyanide removal from water can be effectively achieved through various chemical and physical water treatment methods, including chlorination and ozonation, as well as various biological methods. Biological methods represent a sustainable and environmentally friendly approach, utilizing the metabolic capabilities of microorganisms to degrade cyanides. Ecotoxicity tests are of great importance for determining the necessity of a particular method. Ecotoxicity tests determine the minimum acceptable concentrations of substances in ecosystems at which they do not have harmful effects. These tests are conducted on test organisms under controlled laboratory conditions. In this study, ecotoxicity tests were conducted using two test organisms – the bacterium Pseudomonas putida and the microalga Chlorella sp. The CFU (colony-forming units) value, growth inhibition, and EC20 and EC50 values were measured. The obtained results indicate a high sensitivity of both test organisms to the presence of cyanides, confirming their suitability for assessing harmful effects. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:077678
Study programmeTitle: Chemical Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2025-01-01
Terms of useLicence In copyright icon
Created on2024-09-10 12:38:44
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