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4. Primjena mikroorganizama u procesima uklanjanja dušikovih spojeva iz otpadnih voda.

Author

Mitrović, M. and Rezić, T.

Abstract

The biological removal of nitrogen compounds using microorganisms is a key process in many wastewater treatment plants. Representatives of ammonia-oxidising bacteria and archaea, belonging to genera such as Nitrosococcus, Nitrosomonas, Nitrosopumilus, as well as nitrite-oxidising bacteria such as Nitrococcus, Nitrobacter, Nitrospira, and Nitrospina, have proven to be extremely effective in removing nitrogen compounds. Denitrification in plants for biological wastewater treatment is carried out by genera such as Acinetobacter, Agrobacterium, Bacillus, Flavobacterium. This paper provides an overview of the microorganisms used in the biological treatment of wastewater loaded with nitrogen compounds, including processes such as nitrification, denitrification, “anammox” and “comammox”. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Radiološki pregled zuba kunića – tehnike pregleda i interpretacija snimki.

Author

Mitrović, M. J., Todorović, A., Krstić, N., Vrbanac, Z., Janevski, A., and Macanović, M. Lazarević

Abstract

Copyright of Veterinarska Stanica is the property of Croatian Veterinary Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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43. Evaluation of potentially toxic element contamination in the riparian zone of the River Sava

Author

Pavlović, Pavle, Marković, M., Kostić, Olga, Sakan, Sanja, Đorđević, Dragana, Perović, Veljko, Pavlović, D., Pavlović, Marija, Čakmak, Dragan, Jarić, S., Paunović, M., Mitrović, M., Pavlović, Pavle, Marković, M., Kostić, Olga, Sakan, Sanja, Đorđević, Dragana, Perović, Veljko, Pavlović, D., Pavlović, Marija, Čakmak, Dragan, Jarić, S., Paunović, M., and Mitrović, M.

Abstract

Contaminated sediments transported onto the river terrace during high water events can contribute significant quantities of potentially toxic elements to riparian soils. Seven trace elements (As, Cd, Cr, Cu, Ni, Pb and Zn) were analysed in the river sediment and riparian soil of the River Sava and their spatial distribution, potential toxicity and ecological risk levels were evaluated. The results showed that levels of all the trace metals were enriched to varying extents in both the sediment (As, Cr, Ni, and Pb) and soil (Ni) when compared to reference levels for sediments and European soils. Mean concentrations of trace metals in sediment and soil, apart from Pb, increased downstream in the River Sava. The similar increasing trend of these elements in sediment and soil may be explained by their increased load due to anthropogenic pressures (As, Cr, Ni, Pb and Zn in sediment and the significant accumulation of Ni in soil) and frequent periodic flooding (As, Cd, Cr, Cu, Ni and Zn in sediment and Cd in soil are influenced by both high water events and natural factors such as the geological substrate), particularly in lowland regions. In this study, soluble As, Cd, Cr, Cu and Ni fractions in sediment and soil LT 10% indicated their low mobility. The exceptions were readily soluble Pb and Zn in the sediment and soil at some sampling sites. In the lower reaches, levels of Pb in sediment was indicative of a medium environmental hazard, while there was a high environmental hazard in the upper reaches with the average Pb content in sediment higher than the PEL. Pollution factors for Pb in soil indicated a medium environmental hazard in the upper and middle reaches and a high environmental hazard at some sites in the lower stretches of the Sava River, although total Pb content in soil was within the range proposed for European soils.

Published
2019

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