Biodegradation of phenol by arthrobacter and modelling of the kinetics

Vijayaraghavan, S.; Srinivasaraghavan, T.; Musti, S.; Kar, Sanjay Kumar; Swaminathan, T.; Baradarajan, A.

doi:10.1007/s004490050111

Cited by 2 publications

(2 citation statements)

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“…The main disadvantages of these conventional techniques are the emission of other gases (NO x ), which requires additional costs for the secondary treatment, generation of contaminated solid waste, low efficiency, excessive use of chemicals, too expensive from operational, maintenance and equipment perspectives [7,9]. Studies conducted by different authors demonstrated that biological treatments can replace the conventional techniques and involve lower investment, in terms of capital and operational costs, show a good operational stability and are environmental friendly as they lead to the formation of less and/or non-dangerous products [10][11][12][13][14][15][16]. The biodegradation process of hazardous compounds by microorganisms is extremely complex and may result from the combination of several factors such enzymatic degradation, binding by extracellular polymeric substances (EPS) or binding by functional groups present on the cell wall.…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of Diethylketone by Penicillium sp. and Alternaria sp. – A Comparative Study Biodegradation of Diethylketone by Fungi

Costa

Neto²,

Nicolau³

et al. 2015

CBE

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Two contaminating fungi were isolated from a bioreactor containing diethylketone and Streptococcus equisimilis, subsequently characterized at molecular level and identified as belonging to the Alternaria and Penicillium genera. The ability of these fungi to biodegrade DEK is evaluated. The kinetic parameters are estimated using four growth kinetic models for biodegradation of organic compounds available in literature. The experimental data for Alternaria sp. and Penicillium sp. was found to be better fitted by the Haldane and the Luong respectively. Biodegradation rate kinetics was evaluated using zero-order, pseudo-first order, pseudo-second order and three-half order models. The pseudo-second-order model was found suitable for all the concentrations of DEK tested for the biodegradation assays using Penicillium sp. whereas for the Alternaria sp. this model just describes properly the assays with initial concentrations of DEK higher than 0.5 g/L. The percentage of biodegraded DEK were approximately 100%, for all the initial concentrations tested.

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Section: Introductionmentioning

confidence: 99%

Biodegradation of Diethylketone by Penicillium sp. and Alternaria sp. – A Comparative Study Biodegradation of Diethylketone by Fungi

Costa

Neto²,

Nicolau³

et al. 2015

CBE

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“…Wastewaters containing phenol in the range of 5-500 ppm are considered suitable for treatment by biological processes [5,7]. Microbial strains such as A. eutrophus, B. stearothermophilus, S. setonii, T. cutaneum, Pseudomonas putida, Pseudomonas pictorum, Phormidium valderianum, Pseudomonas fluorescens, Pseudomonas cepacia, arthrobacter, Candida tropicalis, Pseudomonas aerogenosa, Bacillus brevis, Nocardia hydrocarbonoxydans [8,12,[20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] have been reported to be suitable for degrading phenol. N. hydrocarbonoxydans is an actinomycetes, which was found to effectively degrade phenol [27].…”

Section: Introductionmentioning

confidence: 99%