Biološko uklanjanje fosfora i dušika pri niskoj koncentraciji otopljenog kisika

master's thesis

• Title (english): Biological phosphorus and nitrogen removal at low dissolved oxygen
• Author: Kristina Čondić Galiničić
• 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: 2019-12-11, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

U procesu biološkog uklanjanja hranjivih tvari (BNR) pri DO < 1 mg L-¹ postiže se istovremeno uklanjanje C, N i P, provođenjem procesa istovremene nitrifikacije i denitrifikacije (SND) i aktivnosti PAOs. Učinkovitost procesa SND se povećava s povećanjem organskih sastojaka izraženih kao KPK, omjera KPK/P odnosno KPK/N i pri omjeru KPK/P 32 koji odgovara omjeru KPK/N 11 učinak SND je 86 %. Za istražene omjere KPK/P 18, 25 i 32 postignuto je uklanjanje PO4-P od 54 %, 61 % i 42 % od početne koncentracije 20 mg PO4-P L-¹ pri DO < 1 mg L-¹.

Abstract (english)

In the process of biological nutrient removal (BNR) at DO < 1 mg L-¹, simultaneous removal of C, N and P is achieved by carrying out the process of simultaneous nitrification and denitrification (SND) and activity of PAOs. The efficiency of the SND process increases with the increase of the organic compounds expressed as COD, the COD/P ratio (COD/N ratio), and at a ratio of COD/P 32 corresponding to the COD/N 11 ratio, the SND effect is 86 %. For the investigated COD/P ratios of 18, 25 and 32, a PO4-P removal of 54 %, 61 % and 42 % from the initial concentration of 20 mg PO4-P L-¹ at DO < 1 mg L-¹ was achieved.

• Keywords: denitrificirajući fosfor akumulirajući organizmi; fosfor akumulirajući organizmi; istovremena nitrifikacija i denitrifikacija
• Keywords (english): denitrifying phosphorus accumulating organisms; phosphorus accumulating organisms; simultaneous nitrification and denitrification
• Language: croatian
• URN:NBN: urn:nbn:hr:159:737991
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-12-13 11:07:43