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master's thesis
Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:852582
Prevarić, Viktorija
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

Prevarić, V. (2019). Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:852582

Prevarić, Viktorija. "Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:852582

Prevarić, Viktorija. "Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:852582

Prevarić, V. (2019). 'Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 16 March 2025, https://urn.nsk.hr/urn:nbn:hr:149:852582

Prevarić V. Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2025 March 16] Available at: https://urn.nsk.hr/urn:nbn:hr:149:852582

V. Prevarić, "Optimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:852582

Metadata
TitleOptimiranje postupka dezinfekcije pitke vode u opskrbnom sustavu
Title (english)Optimization of water disinfection treatment in water-supply network
AuthorViktorija Prevarić
MentorŠime Ukić (mentor)
Committee memberŠime Ukić (predsjednik povjerenstva)
Committee memberLidija Furač (član povjerenstva)
Committee memberMatija Cvetnić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-06-17, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Kako bi voda za piće bila odgovarajuće kvalitete, te zdravstvene ispravnosti, potrebno ju je obraditi u postrojenjima za obradu vode. Kao završni korak obrade slijedi dezinfekcija vode, čiji je primarni cilj uklanjanje patogenih mikroorganizama. U ovom su radu ispitivana tri tipa vode: bunarska, površinska te krška površinska voda. Uzorci su realni, uzimani u postrojenjima na području Republike Hrvatske, no detaljnije podatke o području uzorkovanja i o samim postrojenjima za obradu vode nije... More moguće otkriti zbog poslovne tajne. Osnovne fizikalno-kemijske karakteristike određene su za svaki uzorak vode. Dezinfekcija vode provodila se upotrebom natrijevog hipoklorita (NaOCl), te je promatrana kinetika potrošnje slobodnog klora. Tijekom 120 minuta spektrofotometrijski je praćena je rezidualna koncentracija (ostatak) slobodnog klora. Cilj mjerenja bio je optimirati doziranje natrijevog hipoklorita kako bi završna koncentracija rezidualnog slobodnog klora nakon 120 minuta ostala unutar zakonom propisanih granica (≤0,5 ppm). Praćena je i promjena koncentracije klorita (ClO2-) i klorata (ClO3-) kao nusprodukata dezinfekcije vode natrijevim hipokloritom. Provedenim ispitivanjima određene su sljedeće optimalne koncentracije natrijevog hipoklorita: 1,5 ppm za bunarsku, 1,0 ppm za površinsku, te 0,5 ppm za kršku površinsku vodu. Nadalje, NaOCl se pokazao kao dobar dezinficijens budući da nusprodukti kloriti nisu utvrđeni niti u jednom uzorku navedenih voda, a klorati su prisutni unutar zakonskih granica u svim vodama. Dezinfekcija vode za piće je izrazito važna zbog kontroliranja i suzbijanja bolesti koje se mogu prenijeti vodom. Potrebno je dalje istraživati i razvijati procese za obradu i dezinfekciju pitke vode kako bi oni postali što ekonomičniji uz što manji nastanak neželjenih dezinfekcijskih nusprodukata. Less
Abstract (english)
In order to assure high quality of the used water, especially high medical quality, water must be treated. The final step of water-treatment in related treatment plants is disinfection. The primary goal of disinfection is the elimination of pathogenic microorganisms. In this work, three water types were examined: groundwater, common surface water and karstic surface water. Sampling area was Republic of Croatia, but more precise information about sampling locations is confidential and will... More remain unrevealed. Basic physical-chemical properties for every water sample were determined. Water disinfection was performed with sodium hypochlorite, and kinetics of free chlorine consumption was monitored. Free chlorine residual was monitored spectrophotometrically during 120 minutes. The intention was to optimize dosage of sodium hypochlorite in order to hold free chlorine residual below regulation limits (≤0.5 ppm). Concentrations of disinfection byproducts: chlorite (ClO2-) and chlorate (ClO3-), were monitored as well. Determined optimal concentrations of sodium hypochlorite were: 1.5 ppm for groundwater, 1.0 ppm for common surface water, and 0.5 ppm for karstic surface water. Furthermore, NaOCl proved to be good disinfection agent since no chlorite byproducts were determined in samples and chlorates were below the regulation limits. Disinfection of drinking water is very important for control and inhibition of waterborne diseases. Therefore, it is necessary to continue with researching and developing of water treatment and disinfection processes in order to make them more efficient and more economical. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:852582
Study programmeTitle: Chemical Engineering - Graduate study
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 conditionsClosed access
Terms of useLicence In copyright icon
Created on2022-02-26 23:08:52
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