J 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

Štítky

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.