Nitrifikacija učinak opterećenja s organskim sastojcima

master's thesis

• Title (english): Nitrification effect of load with organic compounds
• Author: Barbara Burić
• Mentor: Tibela Landeka Dragičević (mentor)
• 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: 2015-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

U ovom radu istražena je nitrifikacija te učinak omjera C/NNH4-N na brzinu procesa. Opterećenje organskim sastojcima istraženo je za omjere (i) C/NNH4-N 1; 116 mg KPK/L; 63,8 mg NH4 –N/L; 9,7 mg NO3-N/L; 1,8 mg NO2-N/L; (ii) C/NNH4-N 2; 240 mg KPK/l; 63,2 mg NH4-N/L; 7,6 mg NO3-N/L; 0,2 mg NO2-N/L; (iii) C/NNH4-N 3; 370 mg KPK/L; 63,8 mh NH4-N/L; 10,8 mg NO3-N/L; 2,4 NO2-N/L; (iv) C/NNH4-N 4; 462 mg KPK/L; 58,8 mg KPK/L; 10 mg NO3-N/L; 2 mg NO2-N/L; (v) C/NNH4-N 5; 659 mg KPK/L; 60 mg NH4-N/L; 6,5 mg NO3-N/L; 0,6 mg NO2-N/L. Pokazano je da je najveći gubitak N od 37,8% ostvaren pri omjeru C/NNH4-N 5 što odgovara omjeru KPK/NNH4-N 10,9. Najveća redukcija KPK od 91,2% postignuta je pri omjeru C/NNH4-N što odgovara omjeru KPK/NNH4-N 10,9. pH i količina utrošenog kisika pokazali su se kao značajni pokazatelji završetka procesa nitrifikacije prilikom čega dolazi do naglog porasta vrijednosti pH i DO.

Abstract (english)

This paper explored the effect of nitrification and the ratio of C/NNH4-N on speed of the process. Load organic compounds have been explored for the ratio (i) C/NNH4-N 1; 116 mg KPK/L; 63,8 mg NH4 –N/L; 9,7 mg NO3-N/L; 1,8 mg NO2-N/L; (ii) C/NNH4-N 2; 240 mg KPK/L; 63,2 mg NH4-N/L; 7,6 mg NO3-N/L; 0,2 mg NO2-N/L; (iii) C/NNH4-N 3; 370 mg KPK/L; 63,8 mh NH4-N/L; 10,8 mg NO3-N/L; 2,4 NO2-N/L; (iv) C/NNH4-N 4; 462 mg KPK/L; 58,8 mg KPK/L; 10 mg NO3-N/L; 2 mg NO2-N/L; (v) C/NNH4-N 5; 659 mg KPK/L; 60 mg NH4-N/L; 6,5 mg NO3-N/L; 0,6 mg NO2-N/L. It has been shown that the greatest loss of N by 37,8% was achieved at a ratio of C/NNH4-N 5 corresponding to the ratio of COD/NNH4-N 10,9. The greatest reduction of COD of 91,2% was achieved at a ratio of C/NNH4-N corresponding to the ratio of COD/NNH4-N 10,9. pH and oxygen consumption have proven to be significant indicators of completing the process of nitrification during which a sudden increase in pH and DO is occurring.

• Keywords: heterotrofna nitrifikacija; otpadna voda; dušik; aktivni mulj
• Keywords (english): heterotrophic nitrification; wastewater; nitrogen; activated sludge
• Language: croatian
• URN:NBN: urn:nbn:hr:159:196285
• Study programme: Title: Food Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-05-05 09:33:41