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master's thesis
Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:248390
Šuman, Monika
University of Zagreb
Faculty of Chemical Engineering and Technology

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

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Šuman, M. (2017). Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:248390

Šuman, Monika. "Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:248390

Šuman, Monika. "Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:248390

Šuman, M. (2017). 'Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:248390

Šuman M. Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:248390

M. Šuman, "Određivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:248390

Metadata
TitleOdređivanje otopljenog i partikularnog organskog ugljika u prirodnim vodama
Title (english)Determination of dissolved and particulate organic carbon in natural waters
AuthorMonika Šuman
MentorAna Lončarić Božić (mentor)
Committee memberAna Lončarić Božić (predsjednik povjerenstva)
Committee memberHrvoje Kušić (član povjerenstva)
Committee memberIrena Ciglenečki-Jušić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Interdisciplinary Technical Sciences
Environmental Engineering
Abstract
Organski ugljik u prirodnim vodama važna je komponenta u ciklusu ugljika, te kao jedan od najvećih spremnika ugljika na Zemlji sudjeluje u mnogim biogeokemijskim procesima i predstavlja važan parametar kod praćenja kakvoće prirodnih voda uključujući i more. U ovom radu cilj je bio primijeniti metodu visokotemperaturne katalitičke oksidacije (engl. high temperature catalytic oxidation - HTCO) za mjerenje mjesečnih i sezonskih varijacija otopljenog (engl. dissolved organic carbon - DOC) i partikularnog (engl. particulate organic carbon - POC) organskog ugljika u uzorcima mora sjevernog Jadrana, te obzirom na sadržaj organske tvari i dugogodišnja saznanja procijeniti stanje mora na ispitivanom području. Obrađeno je ukupno 440 uzoraka prikupljenih na tri različite postaje (101, 108 i 107) tzv. profila rijeke Po na različitim dubinama (0.5 m, 10 m, 20 m, 30 m i dno), u razdoblju od 2014. do 2017. godine. Ispitane su sezonske varijacije koncentracije organske tvari (DOC i POC frakcije) unutar vodenog stupca obzirom na dotok slatke vode iz rijeke Po, odnosno utjecaj saliniteta mora. Na površini su potvrđena najveća kolebanja i izmjerene su najviše koncentracije s povišenim vrijednostima u proljeće i ljeto, dok su u jesen i zimi određene niže vrijednosti DOC i POC koncentracija. Općenito je opaženo kako je salinitet negativno koreliran s DOC i POC vrijednostima; izrazito niske vrijednosti saliniteta određene su u proljeće i ljeto 2014. godine kada su izmjerene i najviše DOC i POC koncentracije. Uzeći u obzir sve izmjerene koncentracije DOC i POC parametara u navedenom razdoblju, sjeverni Jadran može se okarakterizirati kao oligotrofni sustav, što je u skladu s dosada poznatim podacima i dugogodišnjim istraživanjima.
Abstract (english)
Organic carbon in natural water represents an important component of the global carbon cycle. As one of the largest reservoirs of carbon on Earth it is included in all biogeochemical processes and it is an important parameter in monitoring the quality of natural waters including the seawater. The aim of the present work was to use the high temperature catalytic oxidation (HTCO) method for measurments of dissolved (DOC) and particulate (POC) organic carbon in the seawater, sampled in the northern Adriatic during different seasons, and to estimate the seawater quality regarding its organic matter content and long-term data. A total of 440 samples were collected at three stations along the transect Po River at different dephts (0.5 m, 10 m, 20 m, 30 m and bottom) during the period 2014.-2017. Seasonal variations of the organic matter concentrations (DOC and POC fractions) in relation to inflow from the freshwater river Po and it's impact on salinity were discussed. The highest concentrations and it's variations were observed in the surface layer in spring and summer seasons, while lower DOC and POC concentrations were determined in autumn and winter. In general, salinity is negatively correlated with DOC and POC values; extremely low salinity was recorded in the spring and summer of 2014 when highest DOC and POC concentrations were measured. Considering the obtained results in the studied period, the northern Adriatic can be characterized as an oligotrophic system which is in accordance with the known long-term investigation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:248390
Study programmeTitle: Environmental Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka ekoinženjerstva (magistar/magistra inženjer/inženjerka ekoinženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-04-27 10:18:05