Degradation of pyridine by one Rhodococcus strain in the presence of chromium (VI) or phenol

Sun, Junsong; Xu, Liang; Tang, Yue‐Qin; Chen, Fuming; Liu, Weiqiang; Wu, Xiao‐Lei

doi:10.1016/j.jhazmat.2011.04.034

Cited by 78 publications

(22 citation statements)

References 34 publications

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“…3), showing advantage to foregoing pyridine degradation experiments. For example, only about half pyridine with initial concentration of 200 mg/L was degraded by Rhodococcus strain after 10 h [37], while 14 h was required to remove 90% of pyridine with initial concentration of 98.27 mg/L and addition of 146.72 mM H 2 O 2 [38]. Promising results were also obtained from MO degradation in the proposed system as 90.4% of MO was removed after 360 min operation with initial concentration of 50 mg/L, which was comparable to previous study [34] and showed advantage to existing decolorization studies conducted in MFCs [39][40][41].…”

Section: Evaluation Of Power Outputs Of the Mfcs And Pollutants Removalsmentioning

confidence: 99%

Utilization of single-chamber microbial fuel cells as renewable power sources for electrochemical degradation of nitrogen-containing organic compounds

Wang

Zhang

Borthwick

et al. 2015

Chemical Engineering Journal

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h i g h l i g h t sSingle-chamber microbial fuel cells (MFCs) are acted as renewable power sources. Enhanced degradation of nitrogen-containing organic compounds is realized. Higher applied voltage, lower initial concentration and pH improve the performance. Indirect electrochemical oxidation with generated H 2 O 2 is the main effect. a b s t r a c tBy employing promising single-chamber microbial fuel cells (MFCs) as renewable power sources, an aerated electrochemical system is proposed and for nitrogen-containing organic compounds (pyridine and methyl orange) removals. Carbon felt performed the best as electrode material while lower initial contaminant concentration and lower initial pH value could improve the performance. A degradation efficiency of 82.9% for pyridine was achieved after 360 min electrolysis with its initial concentration of 200 mg/L, initial pH of 3.0 and applied voltage of 700 mV. Mechanisms study implied that indirect electrochemical oxidation by generated hydrogen peroxide was responsible for their degradation. This study provides an alternative utilization form of low bioelectricity from MFCs and reveals that applying it to electrochemical process is highly-efficient as well as cost-effective for degradation of nitrogen-containing organic compounds.

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Section: Evaluation Of Power Outputs Of the Mfcs And Pollutants Removalsmentioning

confidence: 99%

Utilization of single-chamber microbial fuel cells as renewable power sources for electrochemical degradation of nitrogen-containing organic compounds

Wang

Zhang

Borthwick

et al. 2015

Chemical Engineering Journal

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“…Considering phenol and pyridine are representative components in coking wastewater [12,23,27], functions of strains isolated from the coking wastewater, including strain J5-3 T , in degrading phenol and pyridine were investigated in our previous study [28]. Results revealed that strain J5-3 T was unable to use either of the two compounds for growth, and was absent of phenol hydroxylase gene.…”

Section: Morphological Physiological and Biochemical Characteristicsmentioning

confidence: 99%

Paradevosia shaoguanensis gen. nov., sp. nov., Isolated from a Coking Wastewater

et al. 2014

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A Gram staining negative, rod-shaped, aerobic bacterial strain J5-3(T) with a single polar flagellum was isolated from coking wastewater collected from Shaoguan, Guangdong, China. It was motile and capable of optimal growth at pH 6-8, 30 °C, and 0-2 % (w/v) NaCl. Its predominant fatty acids were 11-methyl C18:1 ω7c (29.2 %), C16:0 (20.6 %), C19:0 cyclo ω8c (18.2 %), C18:0 (11.0 %), and C18:1 ω7c/C18:1 ω6c (10.9 %) when grown on trypticase soy agar. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, two unknown glycolipids (GL1, GL2), and two unknown phospholipid (PL1, PL2). The predominant ubiquinone was Q-10, and the genome DNA G+C content was 61.7 mol %. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain J5-3(T) belonged to the family Hyphomicrobiaceae in Alphaproteobacteria. It shared the 16S rRNA gene sequence similarities of 93.8-96.1 % with the genus Devosia, 94.5-94.8 % with the genus Pelagibacterium, and <92.0 % with all the other type strains in family Hyphomicrobiaceae. It can be distinguished from the closest phylogenetic neighbors based on several phenotypic and genotypic features, including α-galactosidase activity, tetracycline susceptibility, major fatty acid composition, polar lipid profile, DNA gyrase B subunit (gyrB) gene sequence, and random-amplified polymorphic DNA profile. Therefore, we consider strain J5-3(T) to represent a novel species of a novel genus within the family Hyphomicrobiaceae, for which the name Paradevosia shaoguanensis gen. nov., sp. nov. is proposed. The type strain of Paradevosia shaoguanensis is J5-3(T) (=CGMCC 1.12430(T) =LMG 27409(T)).

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“…Biological treatment has been tried to remove pyridine in pyridine-containing wastewater. In recent years, various pyridine-specific degrading bacteria including Pseudomonas, Bacillus, Arthrobacte, Pseudonomica sp., Paracoccus, Lysinibacillus, Red Rhodococccus and Algenes have been isolated and screened in wastewater, sludge, soil, rock, and other sources [4][5][6][7][8][9][10][11]. However, the method is currently in development phase in laboratory environment, and it generally suffers from the long treatment cycle and large environmental impact on bacteria.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Pyridine in Simulation Wastewater Using Coke Powder

Gao

Wang

et al. 2019

Processes

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Pyridine is a toxic component in industrial wastewater, which is difficult to remove using conventional methods. In this study, the cost-effective coke powder was used to remove pyridine from a pyridine simulation wastewater. The removal efficiency and adsorption capacity of pyridine reached up to 67.32% and 0.4488 mg/g, respectively, at a coke powder concentration of 60 mg/L and an adsorption time of 30 min. The pyridine removal efficiency and adsorption capacity of coke powder reached saturation when the initial concentration was 40 mg/L. The pH of 2–12 in the solution was found to have little effect on the pyridine adsorption process of coke powder, while the coke powder with lower ash content was of better adsorbability for pyridine. The coke powder was regenerated by heat treatment, and reused for pyridine adsorption. It was found that the pyridine removal efficiency slightly decreased after nine times of reuse, in addition to a small cumulative weight loss rate of coke powder. Adsorption isotherm analysis showed that the adsorption of pyridine by coke powder could be well described by the Freundlich isothermal adsorption model, indicating multi-molecular layers mainly dominated the adsorption of pyridine on the surface of coke powder.

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Degradation of pyridine by one Rhodococcus strain in the presence of chromium (VI) or phenol

Cited by 78 publications

References 34 publications

Utilization of single-chamber microbial fuel cells as renewable power sources for electrochemical degradation of nitrogen-containing organic compounds

Utilization of single-chamber microbial fuel cells as renewable power sources for electrochemical degradation of nitrogen-containing organic compounds

Paradevosia shaoguanensis gen. nov., sp. nov., Isolated from a Coking Wastewater

Adsorptive Removal of Pyridine in Simulation Wastewater Using Coke Powder

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