2013
Pollutant interactions during the biodegradation of phenolic mixtures with either 2- or 3-mononitrophenol in a continuously operated packed bed reactor
HALECKY, Martin; Jan PACA; Marie STIBOROVA; Evguenii I. KOZLIAK; Ivana MAŠLAŇOVÁ et. al.Základní údaje
Originální název
Pollutant interactions during the biodegradation of phenolic mixtures with either 2- or 3-mononitrophenol in a continuously operated packed bed reactor
Autoři
HALECKY, Martin (203 Česká republika, garant); Jan PACA (203 Česká republika); Marie STIBOROVA (203 Česká republika); Evguenii I. KOZLIAK (840 Spojené státy) a Ivana MAŠLAŇOVÁ (203 Česká republika, domácí)
Vydání
Journal of Environmental Science and Healt, Part A: Toxic/Hazardous Substances and Environmental Engineering, Taylor & Francis Group, LLC, 2013, 1093-4529
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.135
Kód RIV
RIV/00216224:14310/13:00072570
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000323409300003
Klíčová slova anglicky
Phenol; 2-nitrophenol; 3-nitrophenol; packed bed reactor; biodegradation
Změněno: 8. 4. 2014 17:09, Ing. Andrea Mikešková
Anotace
V originále
Pollutant interactions during the aerobic biodegradation of phenolic mixtures with either 2-nitrophenol ( 2-NP ) or 3-nitrophenol ( 3-NP ) by a NP-adapted microbial consortium in simulated wastewater were studied in a packed-bed bench scale bioreactor continuously operated in a Flow mode. Phenol /2-NP and phenol/ 3-NP mixtures with varied phenol/nitrophenol ratios were shown to exhibit different biodegradability patterns. The presence of 2-NP led to a much lower overall elimination capacity and lower proces stability in comparison to mixtures with 3-NP. In contrast to the expected greater degradation of a more biodegradable substrate in mixtures, phenol was degraded with a lower efficiency at higher phenol concentrations than NPs, although this difference became less pronounced with the gradual biofilm adaptation to phenol. This unusual substrate interaction, which appears to be common in the biotreatment of substituted phenol mixtures, was explained by prior biofilm adaptation to less degradable substrates, NPs. The biofilm composition was signficantly altered during the long-term reactor operation. Although eukaryotes were not present in the inoculum, four fungal species were isolated from the biofilm after 1.5 years of operation. Of the initially present strains, only Chryseobacterium sp. and several Pseudomonas species persisted till the end of operation.