About: Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors

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About: Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Factors affecting continuous 2,4-DNT degradation by an immobilized mixed microbial culture were investigated including the cell adaptation to this toxic substrate, 4-NT co-degradation, packing material porosity and substrate mass loading. Experiments were carried out in two packed bed reactors, with poraver (porous glass) and expanded slate as packing materials, using a concurrent water-air flow with ample oxygen. Running the system as a batch reactor with re-circulated medium showed that the immobilized cells adapted to higher 2,4-DNT concentrations yielding higher substrate biodegradation rates. The 2,4-DNT removal rate further increased, up to 180-265 mg L-1d-1, when the immobilized biomass cultivation was switched to a continuous mode. The type of the packing material influenced the 2,4-DNT removal rate, apparently due to the difference in biofilm development. Significant changes in the biofilm composition were observed compared to the original inoculum despite poor biofilm growth. Factors affecting continuous 2,4-DNT degradation by an immobilized mixed microbial culture were investigated including the cell adaptation to this toxic substrate, 4-NT co-degradation, packing material porosity and substrate mass loading. Experiments were carried out in two packed bed reactors, with poraver (porous glass) and expanded slate as packing materials, using a concurrent water-air flow with ample oxygen. Running the system as a batch reactor with re-circulated medium showed that the immobilized cells adapted to higher 2,4-DNT concentrations yielding higher substrate biodegradation rates. The 2,4-DNT removal rate further increased, up to 180-265 mg L-1d-1, when the immobilized biomass cultivation was switched to a continuous mode. The type of the packing material influenced the 2,4-DNT removal rate, apparently due to the difference in biofilm development. Significant changes in the biofilm composition were observed compared to the original inoculum despite poor biofilm growth. (en)
Title	Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors (en)
skos:prefLabel	Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors (en)
skos:notation	RIV/60461373:22330/11:43885720!RIV12-MSM-22330___
http://linked.open...avai/predkladatel	Fakulta potravinářské a biochemické technologie
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP503/11/0163), P(ME10007), Z(MSM6046137305)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hudcová, Tereza Páca, Jan Halecký, Martin
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	Vysoká škola chemicko-technologická v Praze / Fakulta potravinářské a biochemické technologie
http://linked.open...dnocenehoVysledku	199205
http://linked.open...ai/riv/idVysledku	RIV/60461373:22330/11:43885720
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	biodegradation rate and efficiency; oxygen in excess; mixed microbial culture; Packed bed reactor (en)
http://linked.open.../riv/klicoveSlovo	Packed bed reactor biodegradation rate and efficiency mixed microbial culture oxygen in excess
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[30713C7C47BF]
http://linked.open...i/riv/nazevZdroje	Journal of Environmental Science and Helath, Part A - Toxic/Hazardous Substance & Environmental Engineering
http://linked.open...in/vavai/riv/obor	EI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (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	2011
http://linked.open...v/svazekPeriodika	46
http://linked.open...iv/tvurceVysledku	Halecký, Martin Hudcová, Tereza Kozliak, Evguenii Páca, Jan Stiborová, Marie Páca, jr., Jan
http://linked.open...n/vavai/riv/zamer	Teoretické základy potravinářských a biochemických technologií
issn	1093-4529
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	22330
is http://linked.open...avai/riv/vysledek of	Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors Factors influencing the aerobic biodegradation of 2,4-dinitrotoluene in continuous packed bed reactors

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