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master's thesis
Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. urn:nbn:hr:159:590786
Smojver, Borna
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

Smojver, B. (2013). Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:590786

Smojver, Borna. "Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. https://urn.nsk.hr/urn:nbn:hr:159:590786

Smojver, Borna. "Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. https://urn.nsk.hr/urn:nbn:hr:159:590786

Smojver, B. (2013). 'Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 28 December 2024, https://urn.nsk.hr/urn:nbn:hr:159:590786

Smojver B. Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2013 [cited 2024 December 28] Available at: https://urn.nsk.hr/urn:nbn:hr:159:590786

B. Smojver, "Učinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2013. Available at: https://urn.nsk.hr/urn:nbn:hr:159:590786

Metadata
TitleUčinak početne koncentracije NH4-N, NO3-N i NO2-N na brzinu nitrifikacije i denitrifikacije
Title (english)Effect of initial NH4-N, NO3-N, and NO2-N concentrations on nitrification and denitrification processes
AuthorBorna Smojver
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 country2013-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
U ovom radu istražen je učinak biološkog uklanjanja dušika pri različitom opterećenju otpadne vode sa NH4-N, uz različite početne koncentracije NO3-N i NO2-N te uz dodatak NaAc za omjer C/NO2-N+NO3-N=2,2±0,4. Svaki pokus sastojao se procesa denitrifikacije pa nitrifikacije. Aktivni mulj provodi proces nitrifikacije u aerobnim uvjetima i proces denitrifikacije u anoksičnim uvjetima. Koncentracija NH4-N u pokusima je bila 16, 32, 48 i 83 mg NH4-N/L. S povećanjem početne koncentracije NH4-N nitrifikacija je trajala dulje vrijeme. Izvor ugljika u obliku natrijeva acetata u omjeru C/NO2-N+NO3-N 2,2±0,4 je bio dovoljan za potpunu denitrifikaciju. Suma NO2-N+NO3-N bila je u rasponu od 31,2 – 51,9 mg NO3-N+NO2-N/L. Specifične brzine nitrifikacije i denitrifikacije bile su: 11,67 mg NH4-N/gMLSSh i 35,67 mg NO3-N+NO2-N/gMLSSh (NH4-N=16 mg/L); 12,08 mg NH4-N/gMLSSh i 25,58 mg NO3-N+NO2-N/gMLSSh (NH4-N=32 mg/L); 9,24 mg NH4-N/gMLSSh i 10,8 mg NO3-N+NO2-N/gMLSSh (NH4-N=48 mg/L); 9,97 mg NH4-N/gMLSSh i 37,25 mg NO3-N+NO2-N/gMLSSh (NH4-N=83 mg/L).
Abstract (english)
The effect of biological nitrogen removal at different wastewater load with NH4-N, and different initial concentrations of NO3-N and NO2-N, and with the addition of NaAc at ratio C/NO2-N+NO3-N=2.2±0.4 was investigated. Each experiment consisted of nitrification and denitrification processes. Activated sludge process is carried out under aerobic conditions for nitrification and denitrification processes in anoxic conditions. Concentrations of NH4-N in the experiments were 16, 32, 48 and 83 mg NH4-N/L. With increasing initial concentrations of NH4-N nitrification lasted a long time. Source of carbon in the form of sodium acetate in the ratio C/NO2-N + NO3-N 2.2 ± 0.4 was sufficient for complete denitrification. The sum of NO2-N + NO3-N ranged from 31.2 to 51.9 mg NO3-N + NO2-N/L. Specific rate of nitrification and denitrification were: 11.67 mg NH4-N/gMLSSh and 35.67 mg NO3-N+NO2-N/gMLSSh (NH4-N=16 mg/L); 12.08 mg NH4-N/gMLSSh and 25.58 mg NO3-N+NO2-N/gMLSSh (NH4-N=32 mg/L); 9.24 mg NH4-N/gMLSSh and 10.8 mg NO3-N+NO2-N/gMLSSh (NH4-N=48 mg/L); 9.97 mg NH4-N/MLSSgh and 37.25 mg NO3-N+NO2-N/gMLSSh (NH4-N=83 mg/L).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:590786
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
Terms of useLicence In copyright icon
Created on2017-05-04 10:19:30