Kinetics of 2,4-dichlorophenol and 4-Cl-m-cresol degradation by Pseudomonas sp. cultures in the presence of glucose

Ziagova, Maria G.; Liakopoulou-Kyriakides, M.

doi:10.1016/j.chemosphere.2007.01.039

Cited by 31 publications

(24 citation statements)

References 34 publications

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“…The A. viscosus biofilm supported on GAC presents better results in terms of removal percentage than the activated carbon by itself, for the three compounds under study. Several reports showed that the microorganisms are able to degrade organic compounds (Thawornchaisit and Pakulanon 2007;Rao and Viraraghavan 2002;Denizli et al 2005;Ziagova and Liakopoulou-Kyriakides 2007). The biofilm supported on GAC probably combines the adsorption by GAC with the biosorption and possible degradation by the microorganisms, resulting in a more effective and resilient treatment system for aqueous solutions with relevant concentrations of some specific organic compounds.…”

Section: Batch Biosorption Studiesmentioning

confidence: 97%

Removal of organic compounds by a biofilm supported on GAC: modelling of batch and column data

et al. 2009

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The performance of a biofilm of Arthrobacter viscosus supported on granular activated carbon on the retention of organic compounds was evaluated. The presence of functional groups on the cell wall surface of the biomass that may interact with the organic compounds was confirmed by Fourier transform infrared spectroscopy, to assess the applicability of this system to the removal of those compounds. The batch assays showed that the removal percentage decreases with the increasing initial concentration. The removal of phenol ranged from 99.5 to 93.4%, the chlorophenol removal ranged from 99.3 to 61.6% and the o-cresol removal ranged from 98.7 to 73.5%, for initial concentrations between 100 and 1,700 mg/L. The batch data were described by Freundlich, Langmuir, Redlich-Peterson, Dubinin-Radushkevich, Sips and Toth model isotherms and the best fit for the retention of phenol and for the retention of o-cresol was obtained with the Sips model, while for chlorophenol, the best fit was obtained with the Freundlich model. The column tests showed that the retention performance followed the order: phenol > chlorophenol > o-cresol, and increased with the increasing initial organic compound concentration. Data from column runs were described by Adams-Bohart, Wolborska and Yoon and Nelson models with good fitting for all the models.

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Section: Batch Biosorption Studiesmentioning

confidence: 97%

Removal of organic compounds by a biofilm supported on GAC: modelling of batch and column data

et al. 2009

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“…(3)) is a popular model to describe the kinetics of pollutant biodegradation (Goudar and Ellis, 2001;Ziagova and Liakopoulou-Kyriakides, 2007;Chen et al, 2011). The maximal substrate conversion rate (q max ) and half saturation constant (K s ) can be obtained according to Monod model.…”

Section: Reaction Fe=nmentioning

confidence: 99%

Nitrate-dependent anaerobic ferrous oxidation (NAFO) by denitrifying bacteria: A perspective autotrophic nitrogen pollution control technology

et al. 2014

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“…The specific growth rate estimated from the slope of exponential growth phase of the cell growth curve as described by Ziagova and Liakopoulou-Kyriakides (2007) was found to be 0.042 ± 0.02 day −1 .…”

Section: Biomass Concentrationmentioning

confidence: 99%

Aerobic granular treatment of 2,4‐dichlorophenol

Khan

Sabir

2011

Can J Chem Eng

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2,4-Dichlorophenol (2,4-DCP) fed aerobic granules were cultivated in a sequencing batch reactor (SBR). Stable and compact granules were obtained in 60 days of SBR operation. Formed granules were compact and strong with closed packed channels. After granulation, effluent chemical oxygen demand and 2,4-DCP concentrations were 95 and 2.5 mg L −1 with corresponding removal efficiencies of 96% and 95% were achieved. Degradation profile shows a high initial degradation rate which decreases later. Degradation rate was found to be directly proportional to the substrate concentration. Specific degradation rate of 2,4-DCP was 6.54 mg 2,4-DCP gVSS −1 h −1 at 60 mg L −1 and specific cell growth rate was 0.042 ± 0.02 day −1 . High optical density (OD 600 ) the system shows effective retention of biomass which is the main advantage of present technique.Des granules aérobies ontété cultivés avec succès pour la dégradation du 2,4-DCP. Des granules stables et compacts ontété obtenus après 70 jours d'opérations en réacteurà séquencement et par lots. Des efficiences de demande chimique finale en oxygène et d'élimination de 2,4-DCP s'élevantà 96% et 95% ontété atteintes. Le profil de dégradation montre que le taux de dégradationétait initialementélevé mais qu'il ralentit plus tard. On a observé une bonne correspondance entre la demande chimique en oxygène et le profil d'élimination de 2,4-DCP. Le taux de dégradation est directement proportionnelà la concentration de substrat. Le taux spécifique de dégradation de 2,4-DCPétait de 6.54 mg de 2,4-DCP gVSS −1 L −1 h −1à 60 mg L −1 et le taux spécifique de croissance cellulaireétait de 0.042 ± 0.02 day −1 . Une haute densité optique du réacteurà séquencement et par lots montre une rétention de la biomasse effective, ce qui est l'avantage principal de cette technique.

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Kinetics of 2,4-dichlorophenol and 4-Cl-m-cresol degradation by Pseudomonas sp. cultures in the presence of glucose

Cited by 31 publications

References 34 publications

Removal of organic compounds by a biofilm supported on GAC: modelling of batch and column data

Removal of organic compounds by a biofilm supported on GAC: modelling of batch and column data

Nitrate-dependent anaerobic ferrous oxidation (NAFO) by denitrifying bacteria: A perspective autotrophic nitrogen pollution control technology

Aerobic granular treatment of 2,4‐dichlorophenol

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