| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:ODSTRANJEVANJE NITRATOV IZ PITNE VODE Z MODIFICIRANIM MEMBRANSKIM BIOREAKTORJEM
Authors:ID Petrovič, Aleksandra (Author)
ID Simonič, Marjana (Mentor) More about this mentor... New window
ID Petrinić, Irena (Comentor)
Files:.pdf UNI_Petrovic_Aleksandra_2011.pdf (2,33 MB)
MD5: 2E397BE3B1C985C5BD40602F85CC8D3D
PID: 20.500.12556/dkum/edd1b83f-558e-421c-9844-3497ddaaa2f9
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomskega dela je bila popolna denitrifikacija pitne vode (odstranitev nitratov) ob uporabi pilotne naprave, modificiranega membranskega bioreaktorja Zenon ZW 10. Aktivnemu blatu je bil kot vir ogljika dodan sladkor saharoza v ustreznem razmerju C/N. Pred, med in po obdelavi pitne vode so bili spremljani naslednji fizikalno-kemijski parametri: pH, temperatura, motnost, absorbanca pri 254 nm, koncentracija kisika, prevodnost, kemijska potreba po kisiku (KPK), celotni organski ogljik (TOC), vsebnost nitratnih ionov, vsebnost nitritnih ionov, koncentracija aktivnega blata (MLSS) ter koncentracija hlapnih suspendiranih snovi (MLVSS). Osrednji cilj naloge je bila določitev optimalnih procesnih pogojev obratovanja in ob tem ugotoviti ustreznost uporabe saharoze kot vira ogljika. Na osnovi analiz fizikalno-kemijskih parametrov in analize aktivnega blata so bili za dan sistem določeni ustrezen vtok, obtok, optimalno razmerje C/N, izračunana je bila tudi hitrost denitrifikacije. V šestih ciklih obratovanja (različnih časovnih intervalov) pri različnih pogojih in parametrih obratovanja, ki so se spreminjali glede na dosežene rezultate, so bili doseženi sledeči optimalni pogoji obratovanja: razmerje C/N za saharozo 2,5/1, vtok vode 17 mL/min, obtok 85 mL/min. Specifična hitrost denitrifikacije je v ciklu s temi pogoji v povprečju znašala 0,0226 d-1, učinkovitost odstranjevanja nitrata (učinkovitost denitrifikacije) pa je bila 99,36 %.
Keywords:denitrifikacija, membranski bioreaktor (MBR), pitna voda, saharoza
Place of publishing:Maribor
Publisher:[A. Petrovič]
Year of publishing:2011
PID:20.500.12556/DKUM-20072 New window
UDC:628.316:546.175(043.2)
COBISS.SI-ID:15368470 New window
NUK URN:URN:SI:UM:DK:50U1UVND
Publication date in DKUM:08.09.2011
Views:3216
Downloads:441
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
:
PETROVIČ, Aleksandra, 2011, ODSTRANJEVANJE NITRATOV IZ PITNE VODE Z MODIFICIRANIM MEMBRANSKIM BIOREAKTORJEM [online]. Bachelor’s thesis. Maribor : A. Petrovič. [Accessed 22 January 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=20072
Copy citation
  
Average score:
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:English
Title:NITRATE REMOVAL FROM DRINKING WATER USING MODIFIED MEMBRANE BIOREACTOR
Abstract:The aim of thesis was a complete denitrification of drinking water (nitrate removal) using a pilot plant, modified membrane bioreactor Zenon ZW 10. Sucrose was added to the activated sludge as a source of carbon in the appropriate ratio C/N. Before, during and after the treatment of drinking water, the following physico-chemical parameters were monitored: pH, temperature, turbidity, absorbance at 254 nm, oxygen concentration, conductivity, chemical oxygen demand (COD), total organic carbon (TOC), content of nitrate ions, content of nitrite ions, concentration of activated sludge (MLSS) and concentration of volatile suspended solids (MLVSS). The central objective of the task was to determine the optimal process operating conditions, to thereby determine the appropriateness of using sugar as a source of carbon. Based on the analysis of physico-chemical parameters and of activated sludge, the appropriate flow, circulation and optimal C/N has been determined. Also the denitrification rate for the given system has been calculated. After six operation cycles (different time intervals), in which operating conditions and parameters were varied according to the results obtained, the following optimal operating conditions were achieved: the ratio of C/N for sucrose 2,5/1, water flow 17 mL/min and circulation 85 mL/min. The average specific denitrification rate calculated under the aforementioned conditions was 0.0226 d-1, the nitrate removal efficiency (denitrification efficiency) was 99.36%.
Keywords:denitrification, membrane bioreactor (MBR), drinking water, sucrose


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica