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

Kód výsledku v IS VaVaI

RIV/00216208:11310/13:10135331 - isvavai.cz

Nalezeny alternativní kódy

RIV/60461373:22330/13:43895043

Výsledek na webu

http://dx.doi.org/10.1080/10934529.2013.773195

DOI - Digital Object Identifier

10.1080/10934529.2013.773195

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 inocul

Název v anglickém jazyce

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

Popis výsledku anglicky

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 inocul

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering

ISSN

1093-4529

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

989-999

Kód UT WoS článku

000317341700001

EID výsledku v databázi Scopus

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