Biodegradation of phenol at high initial concentration by Alcaligenes faecalis

Jiang, Yan; Wen, Jianping; Bai, Jing; Jia, Xiaoqiang; Hu, Zongding

doi:10.1016/j.jhazmat.2007.05.031

Cited by 94 publications

(58 citation statements)

References 20 publications

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“…Biodegradation of phenol using pure and mixed cultures of suspended bacteria has been studied in detail. Nevertheless, owing to the inhibitory effects of phenol on the microbes, biological treatment of phenol-containing effluent has been facing challenges (Liu et al, 2011;Jiang et al, 2007). Therefore, to remove higher concentration of phenol from effluents, it is peculiarly significant to isolate appropriate microorganism that can endure as well as effectively degrade phenol at relatively high concentration.…”

Section: Introductionmentioning

confidence: 99%

BIODEGRADATION OF PHENOL BY FREE AND IMMOBILIZED CELLS OF A NOVEL Pseudomonas sp. NBM11

Mohanty

Jena

2017

Braz. J. Chem. Eng.

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-In the present study, a pure culture of bacterium (Pseudomonas sp. Strain NBM11) was isolated from the soil sample from a site contaminated with medical wastes and wastewater. The isolated strain can degrade up to 1000 mg/L of phenol completely. It was observed that temperature, pH and initial concentration of phenol play key roles in determining the rate of phenol degradation. The isolated strain exhibited the maximal degradation of the substrate within a range of pH 6.8 to 7.2 and an incubation temperature between 30 ºC and 32 ºC. It was found that by increasing the concentration of phenol, the lag phase gets extended due to the inhibitory nature of phenol. The kinetic parameters such as µmax (maximum specific growth rate), Ks (half-saturation coefficient) and Ki (substrate inhibition constant) were estimated as 0.184 1/h, 7.79 mg/L and 319.24 mg/L, respectively, by fitting the growth kinetics data to the Haldane model of substrate inhibition. The bacterial strain was immobilized in alginate beads and its phenol degradation efficiency was observed to increase many fold. The immobilized cells were found to be used efficiently for seven cycles consecutively without any decrease in their efficiency.

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Section: Introductionmentioning

confidence: 99%

BIODEGRADATION OF PHENOL BY FREE AND IMMOBILIZED CELLS OF A NOVEL Pseudomonas sp. NBM11

Mohanty

Jena

2017

Braz. J. Chem. Eng.

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“…Many studies were done to screen for appropriate microorganisms that can tolerate the inhibitory effects of phenol and effectively degrade it at relatively high concentration (Jiang et al, 2007a, Liu et al, 2011and Basak et al, 2013. In the present investigation, an efficient isolate of yeast was able to detoxify phenol-containing water.…”

Section: Article Infomentioning

confidence: 82%

Evaluation of Nutritional and Environmental Conditions for Phenol Degradation by a Lebanese strain of Candida tropicalis

Koubeissi¹,

Yusef²,

Holail³

2017

Int.J.Curr.Microbiol.App.Sci

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“…However, these systems often failed due to the high concentrations of phenol or fluctuations in phenol wastewater concentration. This has encouraged the development In Focus of more robust microbial systems able to accommodate large irregular fluctuations to meet compliance in a more consistent manner [8][9][10] .…”

Section: Phenol Is a Key Pollutant In Contaminated Industrial Wastewatermentioning

confidence: 99%

Bioaugmentation: an effective commercial technology for the removal of phenols from wastewater

et al. 2017

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Phenol represents a huge problem in industrial wastewater effluents and needs to be removed due to its toxic and carcinogenic nature. The removal of phenol from the wastewater is often both expensive and time consuming; there is therefore a requirement for a more effective, sustainable solution for the removal of phenol from wastewaters.Bioaugmentation or the addition of phenol degrading microorganisms to contaminated effluents is one such sustainable approach being considered. Here, we describe how bioaugmentation has been applied for the biological treatment of phenol in industrial wastewaters.

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Biodegradation of phenol at high initial concentration by Alcaligenes faecalis

Cited by 94 publications

References 20 publications

BIODEGRADATION OF PHENOL BY FREE AND IMMOBILIZED CELLS OF A NOVEL Pseudomonas sp. NBM11

BIODEGRADATION OF PHENOL BY FREE AND IMMOBILIZED CELLS OF A NOVEL Pseudomonas sp. NBM11

Evaluation of Nutritional and Environmental Conditions for Phenol Degradation by a Lebanese strain of Candida tropicalis

Bioaugmentation: an effective commercial technology for the removal of phenols from wastewater

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