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master's thesis
Denitrificirajuća defosfatacija preko nitrita
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. urn:nbn:hr:159:339440
Marković, Neven
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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Marković, N. (2015). Denitrificirajuća defosfatacija preko nitrita (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:339440

Marković, Neven. "Denitrificirajuća defosfatacija preko nitrita." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. https://urn.nsk.hr/urn:nbn:hr:159:339440

Marković, Neven. "Denitrificirajuća defosfatacija preko nitrita." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. https://urn.nsk.hr/urn:nbn:hr:159:339440

Marković, N. (2015). 'Denitrificirajuća defosfatacija preko nitrita', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 01 August 2024, https://urn.nsk.hr/urn:nbn:hr:159:339440

Marković N. Denitrificirajuća defosfatacija preko nitrita [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2015 [cited 2024 August 01] Available at: https://urn.nsk.hr/urn:nbn:hr:159:339440

N. Marković, "Denitrificirajuća defosfatacija preko nitrita", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:159:339440

Metadata
TitleDenitrificirajuća defosfatacija preko nitrita
Title (english)Denitrifying dephosphatation over nitrite
AuthorNeven Marković
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 country2015-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
U ovom radu istražena je denitrificirajuća defosfatacija otpadne vode u anoksičnim uvjetima. Kao izvor ugljika korišten je natrijev acetat pri omjerima (i) C/NO2-N = 1 početne koncentracije 24,1 mg NO2-N/L i 11,2 mg PO4-P/L; (ii) C/NO2-N = 2 početne koncentracije 23,9 mg NO2-N/L i 12,0 mg PO4-P/L; (iii) C/NO2-N = 3 početne koncentracije 25,2 mg NO2-N/L i 12,3 mg PO4-P/L; (iv) C/NO2-N = 4 početne koncentracije 25,8 mg NO2-N/L i 10,4 mg PO4-P/L; (v) C/NO2-N = 7 početne koncentracije 23,2 mg NO2-N/L i 10,9 mg PO4-P/L. Pokazano je da aktivni mulj provodi proces denitrificirajuće defosfatacije u anoksičnim uvjetima, pri koncentraciji otopljenog kisika DO≤0,4 mg/L. Natrijev acetat se pokazao kao povoljan izvor ugljika za denitrificirajuću defosfataciju. Omjer C/NO2-N = 4 dostatan je za potpunu denitrifikaciju u istraživanim uvjetima. Maksimalna količina uklonjenog fosfora je pri istraživanim uvjetima 24,5±1,3 mg NO2-N/L pri omjeru N/P 2,1 i pri omjerima C/NO2-N = 4 i C/NO2-N = 7, iznosila 72,1% i 71,6%.
Abstract (english)
In this paper denitrifying dephosphatation of wastewater under anoxic conditions was evaluated. Sodium acetate was used as the carbon source, at ratios: (i) C/NO2-N = 1 initial concentration 24,1 mg NO2-N/L and 11,2 mg PO4-P/L; (ii) C/NO2-N = 2 initial concentration 23,9 mg NO2-N/L and 12,0 mg PO4-P/L; (iii) C/NO2-N = 3 initial concentration 25,2 mg NO2-N/L and 12,3 mg PO4-P/L; (iv) C/NO2-N = 4 initial concentration 25,8 mg NO2-N/L and 10,4 mg PO4-P/L; (v) C/NO2-N = 7 initial concentration 23,2 mg NO2-N/L and 10,9 mg PO4-P/L. The obtained results showed that activated sludge carried out process of denitrifying dephosphatation under anoxic conditions, at a dissolved oxygen concentration of DO≤0,4 mg/L. Sodium acetate was a good carbon source for denitrifying dephosphatation. Ratio C/NO2-N = 4 was sufficient for complete denitrification under investigated conditions. The highest amount of phosphorus removal under investigated conditions of 24,5±1,3 mg NO2-N/L with ratio N/P 2,1 and C/NO2-N = 4 and C/NO2-N = 7, was 72,1% i 71,6%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:339440
Study programmeTitle: Bioprocess Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2017-05-04 08:28:30