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undergraduate thesis
Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. urn:nbn:hr:159:416433
Bošnjak, Dora
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for the Biological Waste Water Treatment

Institutional repository: Repository of the Faculty of Food Technology and Biotechnology

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Bošnjak, D. (2019). Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:416433

Bošnjak, Dora. "Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. https://urn.nsk.hr/urn:nbn:hr:159:416433

Bošnjak, Dora. "Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. https://urn.nsk.hr/urn:nbn:hr:159:416433

Bošnjak, D. (2019). 'Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:416433

Bošnjak D. Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2019 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:159:416433

D. Bošnjak, "Denitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:159:416433

Metadata
TitleDenitrificirajuća defosfatacija preko nitrita u anoksičnim uvjetima: Učinak omjera C/P
Title (english)Denitrifying dephosphatation via nitrite at anoxic conditions: The effect of ratio C/P
AuthorDora Bošnjak
MentorTibela Landeka Dragičević (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for the Biological Waste Water Treatment)
Zagreb
Defense date and country2019-07-09, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Istražena je denitrificirajuća defosfatacija preko nitrita pri anoksičnim uvjetima. Denitrificirajuća defosfatacija je istražena pri početnoj koncentraciji 15 mg PO4-P/L uz nitrit kao akceptor elektrona pri omjeru N/P 2, te uz natrijev acetat kao izvor C dodan u omjeru C/N 0,5, 1, 2, 3, 4, i 7 (ekvivalent omjeru C/P 1, 2, 4, 6, 8 i 14). Nije kontroliran pH. Dokazan je unutarstanično pohranjen poliP. Povećanjem omjera C/N povećava se učinkovitost uklanjanja i PO4-P i NO2-N do omjera C/N 4 koji predstavlja minimalnu količinu C iz natrijeva acetata potrebnu za potpunu denitrifikaciju i pri tome ostvaren unos P (77%). Pri omjeru C/N 7 proces denitrificirajuće defosfatacije preko nitrita je rezultirao potpunom denitrifikacijom i učinkovitosti uklanjanja PO4-P 72%, i samo 37% redukciju KPK.
Abstract (english)
Denitrifying dephosphatation via nitrite at anoxic conditions was investigated. The denitrifying dephosphatation of an initial concentration of 15 mg PO4-P/L with nitrite as an electron acceptor at a ratio of N/P 2 and with sodium acetate as a source of C added at a C/N ratio of 0.5, 1, 2, 3, 4, and 7 (equivalent to ratio C/P 1, 2, 4, 6, 8 and 14). No pH was controlled. Intracellulary stored polyP was proven. Increasing the C/P (C/N) ratio increases the efficiency of PO4-P and NO2-N removal to a C/N 4 which represents the minimum amount of C required for full denitrification and P uptake of 77%. At the ratio C/N 7 the denitrification dephosphatation process via nitrite resulted in the complete denitrification and a PO4-P removal efficiency of 72%, and COD was reduced only 37%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:416433
Study programmeTitle: Food Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2019-07-16 10:22:04