Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja

Galant, Mirjana

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doctoral thesis

Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja

Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. urn:nbn:hr:159:366691

Galant, Mirjana

University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for the Biological Waste Water Treatment

Cite this document

APA 6th Edition

Galant, M. (2023). Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:366691

MLA 8th Edition

Galant, Mirjana. "Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja." Doctoral thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:366691

Chicago 17th Edition

Harvard

Galant, M. (2023). 'Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja', Doctoral thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 21 March 2025, https://urn.nsk.hr/urn:nbn:hr:159:366691

Vancouver

Galant M. Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2023 [cited 2025 March 21] Available at: https://urn.nsk.hr/urn:nbn:hr:159:366691

IEEE

M. Galant, "Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja", Doctoral thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:159:366691

Cite this item: https://urn.nsk.hr/urn:nbn:hr:159:366691

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Metadata

Title	Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja
Title (english)	Nitrogen removal from wastewater using granulated activated sludge
Author	Mirjana Galant
Mentor	Tibela Landeka Dragičević (mentor)
Committee member	Dijana Grgas (predsjednik povjerenstva)
Committee member	Božidar Šantek (član povjerenstva)
Committee member	Mirna Habuda-Stanić (član povjerenstva)
Granter	University of Zagreb Faculty of Food Technology and Biotechnology (Department of Food Engineering) (Laboratory for the Biological Waste Water Treatment) Zagreb
Defense date and country	2023, Croatia
Scientific / art field, discipline and subdiscipline	BIOTECHNICAL SCIENCES Biotechnology
Universal decimal classification (UDC)	577 - Biochemistry. Molecular biology. Biophysics
Abstract	Aerobni granulirani mulj formiran je iz aktivnog mulja u SBR reaktoru, uz acetat kao izvor ugljika. Povećanje omjera KPK/N povoljno djeluje na uklanjanje N, P i KPK. Učinkovitost uklanjanja N s povećanjem omjera KPK/N od 1 do 23 se povećala od 40% do 80%, kao i uklanjanje KPK od 57% do 96%. S povećanjem omjera KPK/N do vrijednosti omjera KPK/N 17 zabilježen je trend povećanja učinkovitosti uklanjanja P te je pri omjeru KPK/N 17 određena najveća učinkovitost uklanjanja P od 69,3%, a daljnjim povećanjem omjera KPK/N učinkovitost uklanjanja P se smanjivala. S porastom protoka zraka postiže se veća koncentracija otopljenog kisika, raste učinkovitost uklanjanja KPK, međutim, učinkovitost uklanjanja N i P raste s povećanjem koncentracije otopljenog kisika do 2 mg/L dok se daljnjim povećanjem koncentracije otopljenog kisika učinkovitost uklanjanja N i P snižava. Rezultati pokazuju trend smanjenja promjera granule s povećanjem protoka zraka. Primjenom FISH metode u aerobnom granuliranom mulju dokazani su mikrobni klasteri odgovorni za procese nitritacije, nitratacije, denitrifikacije, uklanjanja fosfora (PAOs), anoksično uklanjanje fosfora uz NO₂-N i NO₃-N kao akceptore elektrona (DPAOs), i pohranjivanje glikogena (GAOs).
Abstract (english)	Aerobic granular sludge was formed from activated sludge in an SBR reactor, with acetate as a carbon source. Increasing the COD/N ratio has a favorable effect on N, P and COD removal. N removal efficiency with increasing COD/N ratio from 1 to 23 increased from 40% to 80%, as well as COD reduction form 57% to 96%. With the increase of the COD/N ratio to the COD/N 17, a trend of increasing P removal efficiency was recorded, and at the COD/N ratio of 17, the highest P removal efficiency of 69.3% was determined, and with a further increase in the COD/N ratio, the P removal efficiency was reduced. With an increase in air flow, a higher dissolved oxygen concentration is achieved, COD removal efficiency increases, however, the N and P removal efficiency increases with an increase in the dissolved oxygen concentration up to 2 mg/L, while a further increase in the dissolved oxygen concentration decreases the N and P removal efficiency. The results show a trend of decreasing granule diameter with increasing air flow. Using the FISH method in aerobic granular sludge, microbial clusters responsible for nitritation, nitration, denitrification, phosphorus removal (PAOs), anoxic phosphorus removal with NO₂-N and NO₃-N as electron acceptors (DPAOs), and glycogen storage (GAOs) were proven.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:159:366691
Promotion	2023
Study programme	Title: Postgraduate PhD Study in Nutrition Study programme type: university Study level: postgraduate Academic / professional title: doktor/doktorica znanosti, područje biotehničkih znanosti, polje nutricionizam (doktor/doktorica znanosti, područje biotehničkih znanosti, polje nutricionizam)
Type of resource	Text
Extent	163 str. ; 30 cm
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of the Faculty of Food Technology and Biotechnology
Created on	2023-08-03 08:07:43