Catechol and phenol degradation by a methanogenic population of bacteria

Healy, J.B.; Young, L. Y.

doi:10.1128/aem.35.1.216-218.1978

Cited by 114 publications

(35 citation statements)

References 10 publications

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“…The ferulic acid-degrading consortia used for these experiments were enriched from anaerobic sewage sludge [5] and maintained with this aromatic acid as the sole carbon and energy source for 5 yr. A serum bottle variation of the Hungate technique [9] was used for strictly anaerobic cultivation. The anaerobic culture procedures, batch culture monitoring techniques, and anaerobic media composition have been described previously [10]. The cultures were fed 3 mM ferulic acid (30 mM total carbon) monthly.…”

Section: Methodsmentioning

confidence: 99%

Anaerobic production and transformation of aromatic hydrocarbons and substituted phenols by ferulic acid-degrading BESA-inhibited methanogenic consortia

Grbić-Galić

1986

FEMS Microbiology Letters

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Section: Methodsmentioning

confidence: 99%

Anaerobic production and transformation of aromatic hydrocarbons and substituted phenols by ferulic acid-degrading BESA-inhibited methanogenic consortia

Grbić-Galić

1986

FEMS Microbiology Letters

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“…Chmielowski et al (1964) first demonstrated phenol degradation by anaerobic microorganisms. Later, Healy and Young (1978) focused on the significance of acclimation and enrichment of the cultures for phenol degradation. By using granular activated carbon as bacteria attachment media, Suidan et al (1983) successfully treated phenolic compounds using anaerobic fluidized-bed reactors.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Phenol Degradation in an Anaerobic Fixed‐Biofilm Process

Lin

Lee²

2006

Water Environment Research

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A mathematical model was developed to describe phenol degradation in an anaerobic fixed‐biofilm process. The model incorporates the mechanisms of diffusive mass transport and Monod kinetics. The model was solved using a combination of the orthogonal collocation method and Gear's method. A pilot‐scale column reactor was used to verify the model. Batch kinetic tests were conducted independently to determine the biokinetic parameters used in the model, while shear loss and initial thickness of biofilm were assumed so that the model simulated the substrate concentration results well. The removal efficiency for phenol was approximately 98.5% at a steady‐state condition. The model accurately described the effluent substrate concentrations and the sequence of biodegradation in the reactor. The model simulations are in agreement with the experimental results. The approaches presented in this paper could be used to design full‐scale anaerobic fixed‐biofilm reactor systems for the biodegradation of phenolic substrates.

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“…Methanogenic degradation of benzoate depends on a syntrophic co-operation of fermentative and hydrogen-oxidizing methanogenic bacteria [8,9], whereas trihydroxybenzoates and trihydroxybenzenes were fermented to acetate in pure culture [10]. To date, methanogenic degradation of mono-and divalent phenols has mainly been investigated by tracer experiments with sediment samples or crude enrichment cultures, and has given no information on the stoichiometry of degradation and the 0168-6496/85/$03.30 © 1985 Federation of European Microbiological Societies organisms involved [11][12][13]. The results suggest that catechol is first converted into phenol, which is further degraded via a reductive pathway [11,14].…”

Section: Introductionmentioning

confidence: 99%

Methanogenic degradation of hydroquinone and catechol via reductive dehydroxylation to phenol

Szewzyk

Schink

1985

FEMS Microbiology Letters

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Fermentative degradation of hydroquinone, catechol, and phenol was demonstrated with nearly‐homogeneous mixed methanogenic cultures obtained from freshwater sediments and sewage sludge by enrichment with the respective phenolic substrates. Gram‐negative short rods predominated in these cultures, together with hydrogen‐ and acetate‐utilizing methanogens. Acetate and methane were the only degradation products. Bacteria enriched with hydroquinone or catechol also degraded phenol and p‐hydroxy‐benzoate, but not resorcinol or resorcylic acids. Phenol was formed as an intermediate during catechol and hydroquinone degradation, indicating that reductive dehydroxylation was the primary event in degradation of these substrates. Inhibition experiments with bromoethanesulfonate and acetylene indicated that catechol, hydroquinone, and phenol degradation depended on a syntrophic co‐operation of fermenting bacteria and hydrogen‐oxidizing methanogens.

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Catechol and phenol degradation by a methanogenic population of bacteria

Abstract: An anaerobic population of bacteria became acclimated to catechol and phenol in 32 and 18 days, respectively. Evidence from carbon balance measurements indicates that the aromatic ring is cleaved and that the products are stoichiometrically fermentable to methane and carbon dioxide.

Cited by 114 publications

References 10 publications

Anaerobic production and transformation of aromatic hydrocarbons and substituted phenols by ferulic acid-degrading BESA-inhibited methanogenic consortia

Anaerobic production and transformation of aromatic hydrocarbons and substituted phenols by ferulic acid-degrading BESA-inhibited methanogenic consortia

Kinetics of Phenol Degradation in an Anaerobic Fixed‐Biofilm Process

Methanogenic degradation of hydroquinone and catechol via reductive dehydroxylation to phenol

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