About: Biodegradation of a mixture of mononitrophenols in a packed-bed aerobic reactor

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Aerobic biodegradation of individual mononitrophenols (4-, 3- and 2-NPs) and their mixture in simulated wastewater was investigated in a packed-bed bench scale bioreactor continuously operated in a flow mode, with a mixed microbial culture adsorbed on expanded slate. Under a low, suboptimal hydraulic retention time (HRT) of 30min thereactor removed more than 3g.L1.day1 ofthe NP mixture while maintaining a > 8590% removal efficiency (RE). Under higher HRT values, starting at 45min, more than 2g.L1.day1 of the NP mixture were removed with an RE > 98%. Significant substrate interactions were observed; the addition of other NPs caused the saturation of 2-NP catabolic capacity whereas the addition of 2-NP caused the de-saturation of the 4- and 3-NP catabolic capacity. 3- and 4-NPs appeared to be removed independently, i.e., by different enzyme systems. After ten months ofoperation, thebiofilm composition was significantly altered to become predominantly bacterial. Only one originally inoculated strain remained indicating microbial contamination followed by a genetic material exchange. Aerobic biodegradation of individual mononitrophenols (4-, 3- and 2-NPs) and their mixture in simulated wastewater was investigated in a packed-bed bench scale bioreactor continuously operated in a flow mode, with a mixed microbial culture adsorbed on expanded slate. Under a low, suboptimal hydraulic retention time (HRT) of 30min thereactor removed more than 3g.L1.day1 ofthe NP mixture while maintaining a > 8590% removal efficiency (RE). Under higher HRT values, starting at 45min, more than 2g.L1.day1 of the NP mixture were removed with an RE > 98%. Significant substrate interactions were observed; the addition of other NPs caused the saturation of 2-NP catabolic capacity whereas the addition of 2-NP caused the de-saturation of the 4- and 3-NP catabolic capacity. 3- and 4-NPs appeared to be removed independently, i.e., by different enzyme systems. After ten months ofoperation, thebiofilm composition was significantly altered to become predominantly bacterial. Only one originally inoculated strain remained indicating microbial contamination followed by a genetic material exchange. (en)
Title	Biodegradation of a mixture of mononitrophenols in a packed-bed aerobic reactor Biodegradation of a mixture of mononitrophenols in a packed-bed aerobic reactor (en)
skos:prefLabel	Biodegradation of a mixture of mononitrophenols in a packed-bed aerobic reactor Biodegradation of a mixture of mononitrophenols in a packed-bed aerobic reactor (en)
skos:notation	RIV/00216208:11310/13:10135331!RIV14-GA0-11310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP503/11/0163), P(ME10007)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Stiborová, Marie
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	63395
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10135331
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	wastewater treatment; biofilm composition; packed bed reactor; 4-nitrophenol; 3-nitrophenol; 2-Nitrophenol (en)
http://linked.open.../riv/klicoveSlovo	2-Nitrophenol 3-nitrophenol biofilm composition packed bed reactor 4-nitrophenol wastewater treatment
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[D999D8FBC3D7]
http://linked.open...i/riv/nazevZdroje	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Enzymes and Mechanisms of Microbial Degradation of Nitroaromatic Compounds Mechanisms of Microbial Degradation of Nitrated Compounds
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	48
http://linked.open...iv/tvurceVysledku	Halecký, Martin Páca, Jan Sedláček, Ivo Stiborová, Marie Bajpai, Rakesh Karlová, Pavlína Kozliak, Evguenii I.
http://linked.open...ain/vavai/riv/wos	000317341700001
issn	1093-4529
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1080/10934529.2013.773195
http://localhost/t...ganizacniJednotka	11310

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