Kinetics of 4-nitrophenol biodegradation in a sequencing batch reactor

Tomei, M. Concetta; Annesini, Maria Cristina; Luberti, Roberta; Cento, Giorgia; Senia, Alessandro

doi:10.1016/s0043-1354(03)00297-5

Cited by 105 publications

(60 citation statements)

References 16 publications

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“…no information pNP with ammonium as nitrogen source resulted in the production of stoichiometric amounts of nitrite (Fig. 3) as previously observed for bacterial aerobic degradation of pNP (Chauhan et al 2000;Löser et al 1998, Prakash et al 1996Roldan et al 1998;Tomei et al 2003;Qiu et al 2006). When incubated with both acetate (50 mM) and pNP (370 and 700 lM), pNP was completely degraded in 32 h and 48 h, respectively (Fig.…”

Section: Chemotaxonomysupporting

confidence: 81%

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Nielsen

Kjeldsen

Ingvorsen

2010

Antonie van Leeuwenhoek

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A novel actinobacterium, designated PNP1(T), was isolated from a wastewater treatment plant at a pesticide factory by selective enrichment with para-nitrophenol. The strictly aerobic strain PNP1(T) grew with para-nitrophenol as the sole carbon and energy source. Metabolism of para-nitrophenol resulted in the stoichiometric release of nitrite. When incubated with both para-nitrophenol and acetate, para-nitrophenol was degraded and utilized as growth substrate prior to acetate. When grown on acetate (in the absence of ammonium) both nitrite and nitrate served as nitrogen sources, nitrate being quantitatively reduced to nitrite which accumulated in cultures during aerobic growth. Cells were coccoid and stained Gram-positive, were non-motile and did not form endospores. Colonies of strain PNP1(T) on agar medium were bright yellow, circular and smooth. The dominant menaquinone was MK-8(H(2)) (54%) and the major cellular fatty acid was anteiso C15:0 (75%). Strain PNP1(T) grew optimally at 27°C, at pH 8-8.5, at salinities 3% (w/v) NaCl, yet exhibited a substantial halotolerance with growth occurring at salinities up to 17% (w/v) NaCl. In addition to para-nitrophenol, a range of sugars, short chain fatty acids and alcohols served as electron donors for growth. The DNA G + C mol% was 68%. The genotypic and phenotypic properties suggest that strain PNP1(T) represents a novel species of the actinobacterial genus Citricoccus for which the name Citricoccus nitrophenolicus is proposed. It is the first member of this genus that has been reported to hydrolyze and grow on para-nitrophenol. The type strain is PNP1(T) (=DSM 23311(T) = CCUG 59571(T)).

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Section: Chemotaxonomysupporting

confidence: 81%

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Nielsen

Kjeldsen

Ingvorsen

2010

Antonie van Leeuwenhoek

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“…Comparison of these values with literature data is a difficult task, since information on 3-CP biodegradation are scarcely available. Nonetheless, they can be considered comparable with those reported in the specialized literature referring to heterotrophic bacteria at 20°C (Metcalf and Eddy 2003;Nuhoglu and Beste 2005;Tomei et al 2003).…”

Section: Growth Yield Coefficient (Y) and Endogenous Respiration Ratesupporting

confidence: 88%

“…The sequencing batch reactor (SBR) combines the dynamic behavior of the periodical systems with a high flexibility (Wilderer et al 2001). These proprieties have been exploited for the successful treatment of toxic compounds-containing wastewater (Carucci et al 1999;Macé and Mata-Alvarez 2002;Tomei et al 2003;Tomei et al 2004). …”

Section: Introductionmentioning

confidence: 99%

3-Chlorophenol Biodegradation in a Sequencing Batch Reactor: Kinetic Study and Effect of the Filling Time

Chiavola

Baciocchi

Barducci³

2010

Water Air Soil Pollut

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Biodegradation kinetics of 3-chlorophenol (3-CP) were studied in two identical lab scale sequencing batch reactors (SBR) fed with the compound as the sole energy and carbon source and operated at different filling time (1 h for SBR1 and 2 h for SBR2). High removal efficiency was always obtained in both SBRs in the range of feed concentration of 300-960 mg L(-1). Increased feed load to 1,200 mg L(-1) 3-CP could also be removed in SBR1 despite the presence of inhibition, whereas determined failure of SBR2. Long filling time and high biomass concentration were shown to have beneficial effect on process kinetics since they allowed to avoid substrate concentration peaks at the end of the fill phase. However, longer filling time (in the present case higher than 1 h) did not allow to select and enrich robust microbial population. The Haldane equation well fitted the kinetic test data measured in the presence of inhibition, i.e., at 960 and 1,200 mg L(-1) 3-CP in SBR1

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“…The authors stated that the enhanced performance with SBR over conventional suspended growth system may be due to enforced short-term unsteady state conditions coupled with periodic exposure of the microorganisms to defined process conditions which facilitate the required metabolic conditions for treating complex chemical effluents. Tomei et al (2003) showed that removal kinetics of 4-nitrophenol in a SBR is well described by the typical substrate inhibition pattern as predicted by the Haldane equation. Also, they observed high-removal rates, short-acclimation times, and good settling characteristics in SBR.…”

Section: Introductionmentioning

confidence: 80%

Modeling chlorophenols degradation in sequencing batch reactors with instantaneous feed-effect of 2,4-DCP presence on 4-CP degradation kinetics

Şahinkaya

Dilek

2006

Biodegradation

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Two instantaneously fed sequencing batch reactors (SBRs), one receiving 4-chlorophenol (4-CP) (SBR4) only and one receiving mixture of 4-CP and 2,4-dichlorophenol (2,4-DCP) (SBRM), were operated with increasing chlorophenols concentrations in the feed. Complete degradation of chlorophenols and high-Chemical oxygen demand (COD) removal efficiencies were observed throughout the reactors operation. Only a fraction of biomass (competent biomass) was thought to be responsible for the degradation of chlorophenols due to required unique metabolic pathways. Haldane model developed based on competent biomass concentration fitted reasonably well to the experimental data at different feed chlorophenols concentrations. The presence of 2,4-DCP competitively inhibited 4-CP degradation and its degradation began only after complete removal of 2,4-DCP. Based on the experimental results, the 4-CP degrader's fraction in SBRM was estimated to be higher than that in SBR4 since 2,4-DCP degraders were also capable of degrading 4-CP due to similarity in the degradation pathways of both compounds.

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Kinetics of 4-nitrophenol biodegradation in a sequencing batch reactor

Cited by 105 publications

References 16 publications

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

3-Chlorophenol Biodegradation in a Sequencing Batch Reactor: Kinetic Study and Effect of the Filling Time

Modeling chlorophenols degradation in sequencing batch reactors with instantaneous feed-effect of 2,4-DCP presence on 4-CP degradation kinetics

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