Simultaneous biodegradation of a phenol and 3,4-dimethylphenol mixture under denitrifying conditions

Puig-Grajales, L.; Rodríguez-Nava, O.; Razo-Flores, Elı́as

doi:10.2166/wst.2003.0389

Cited by 15 publications

(7 citation statements)

References 11 publications

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“…In the batch cultures with the denitrifying sludge, those intermediaries were not detected, and this might be related to the use of nitrite instead of nitrate. Denitrification and methanogenesis can occur together, as was observed by Puig‐Grajales et al . These authors observed that a mixture of phenolic compounds (i.e.…”

Section: Resultsmentioning

confidence: 56%

“…Nevertheless, under wileyonlinelibrary.com/jctb c 2013 Society of Chemical Industry J Chem Technol Biotechnol 2013; 88: 2176-2180 25 In the batch cultures with the denitrifying sludge, those intermediaries were not detected, and this might be related to the use of nitrite instead of nitrate. Denitrification and methanogenesis can occur together, as was observed by Puig-Grajales et al 26 These authors observed that a mixture of phenolic compounds (i.e. phenol and 3,4 dimethylphenol) at certain culture conditions were simultaneously removed by denitrification and methanogenesis, the end products being N 2 , CO 2 and CH 4 .…”

Section: Organotrophic Denitrification: Physiological Aspectmentioning

confidence: 61%

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Nitrite as oxidizing power for p‐cresol removal using a denitrifying sludge: kinetic study

González-Blanco¹,

Cuervo-López²,

Cervantes

et al. 2013

J of Chemical Tech & Biotech

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Background Chemical plants, oil refineries and petrochemical plants discharge wastewaters polluted with phenolic and nitrogen compounds. Denitrification is an economical and feasible process, however, metabolic and kinetic information is required in order to know and to control the limitations involved when nitrite is present or accumulated. The goal of this study was to study the kinetic behavior of a denitrifying sludge and to reduce nitrite at several p‐cresol‐C (p‐Cr) concentrations. Results Over the 10 to 45 mg p‐Cr L−1 concentration range tested, nitrite reduction was linked to p‐Cr oxidation and the specific rate increased to 7.02 mg NO2−‐N g−1 VSS h, with CO2 and N2 the products. At higher initial p‐Cr concentrations, inhibition was observed, diminishing the specific rate to 1.60 mg NO2−‐N g−1 VSS h. Electron balance showed that p‐Cr consumption was carried out by two biological processes; denitrification and fermentation. The kinetic profile followed the Haldane model, with inhibition constant (Ki) of 35.75 mg p‐Cr L−1, affinity constant (Ks) of 20.32 mg p‐Cr L−1 and maximum specific nitrite reduction (qmax) of 9.48 mg NO2−‐N g−1 VSS h. CONCLUSIONS The results suggest that p‐cresol can be removed by denitrification and fermentation. Kinetic information should be considered for designing and operating denitrifying reactors to treat industrial wastewaters containing phenolic compounds and nitrite. © 2013 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 56%

Section: Organotrophic Denitrification: Physiological Aspectmentioning

confidence: 61%

Nitrite as oxidizing power for p‐cresol removal using a denitrifying sludge: kinetic study

González-Blanco¹,

Cuervo-López²,

Cervantes

et al. 2013

J of Chemical Tech & Biotech

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“…Denitrification in granular reactors with nitrate as electron acceptor and aromatic compounds as electron donors has been previously reported [22][23][24]. But, to the best of our knowledge, this is the first study describing the successful performance of an anoxic granular reactor with nitrite as electron acceptor and phenol as electron donor.…”

Section: Maximum Nitrogen Removal Capacity and Nitrous Oxide Emissionsmentioning

confidence: 86%

Denitritation in an anoxic granular reactor using phenol as sole organic carbon source

Ramos

Suárez-Ojeda

Carrera

2016

Chemical Engineering Journal

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Heterotrophic denitrification of nitrite (denitritation) with phenol as the only organic carbon source was successful achieved in an Upflow Sludge Blanket (USB) reactor with granular biomass. High nitrite removal (over 95 %) and complete biodegradation of phenol were obtained at low COD/N ratio (2.5 ± 0.1) and at high nitrogen and organic loading rates (0.6 ± 0.1 g N L-1 d-1 and 1.6 ± 0.3 g COD L-1 d-1 at 30 ºC, respectively). The granulation remained stable throughout the operational period with an average granule size of 0.9 ± 0.1 mm and 95 % of the biomass with a diameter higher than 0.2 mm. The denitrifying granular biomass was also able to use nitrate as electron acceptor after one year consuming exclusively nitrite. However, the granular biomass was not able to use o-cresol as electron donor although phenol and nitrite degradations were not affected by the presence of o-cresol and the granules remained stable. Most of the genera identified in the granules after one year operation of the anoxic USB reactor *Revised Manuscript (clean for typesetting) Click here to view linked References This is the author's version of a work that was accepted for publication in Chemical engineering journal (Elsevier). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ramos, CA; Suárez-Ojeda, MA and Carrera, J. "Denitritation in an anoxic granular reactor using phenol as sole organic carbon source"

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“…The HRT diminution did not affect the respiratory process of denitrification. Puig-Grajales et al [38] showed that under denitrifying conditions the simultaneous elimination of phenol (240 mg/l) and 3,4-dimetylphenol (38 mg/l) is possible. The consumption efficiencies of phenol and 3,4-dimetylphenol were 95 and 70%, respectively.…”

Section: Organotrophic Denitrification In Continuous Mode At Differenmentioning

confidence: 99%

Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis

Beristain-Cardoso

Texier

Alpuche-Solís

et al. 2009

Process Biochemistry

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Simultaneous biodegradation of a phenol and 3,4-dimethylphenol mixture under denitrifying conditions

Cited by 15 publications

References 11 publications

Nitrite as oxidizing power for p‐cresol removal using a denitrifying sludge: kinetic study

Nitrite as oxidizing power for p‐cresol removal using a denitrifying sludge: kinetic study

Denitritation in an anoxic granular reactor using phenol as sole organic carbon source

Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis

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