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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

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

Cite this document

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

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

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

Galant, M. (2023). 'Uklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja', Doctoral thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 16 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:366691

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 2024 November 16] Available at: https://urn.nsk.hr/urn:nbn:hr:159:366691

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

Metadata
TitleUklanjanje dušika iz otpadne vode primjenom granuliranoga aktivoga mulja
Title (english)Nitrogen removal from wastewater using granulated activated sludge
AuthorMirjana Galant
MentorTibela Landeka Dragičević (mentor)
Committee memberDijana Grgas (predsjednik povjerenstva)
Committee memberBožidar Šantek (član povjerenstva)
Committee memberMirna Habuda-Stanić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for the Biological Waste Water Treatment)
Zagreb
Defense date and country2023, 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)
Languagecroatian
URN:NBNurn:nbn:hr:159:366691
Promotion2023
Study programmeTitle: 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 resourceText
Extent163 str. ; 30 cm
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-08-03 08:07:43