Enhanced pyridine biodegradation under anoxic condition: The key role of nitrate as the electron acceptor

Shen, Jinyou; Chen, Yan; Wu, Shijing; Wu, Haobo; Liu, Xiaodong; Sun, Xiuyun; Li, Jiansheng; Wang, Lianjun

doi:10.1016/j.cej.2015.04.109

Cited by 70 publications

(11 citation statements)

References 52 publications

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“…However, it is also likely that these compounds are also present in trace amounts in hydrocarbons originated in oil reservoirs. Pyridine is frequently used in the chemical industry, primarily in the production of pesticides, as solvent, in the production of dyes, explosives, pharmaceuticals, and as ligand in specialty coordination chemistry synthesis (Ahsan et al, 2018;Liu et al, 1998;Shen et al, 2015). 4METPYR has been reported as ligand in coordination chemistry (Mautner et al, 2018) and as precursor for the synthesis of active principles by the pharmaceutical industry (Yamada et al, 2017).…”

Section: Pyridinesmentioning

confidence: 99%

Development of new oil/water partitioning tracers for the determination of residual oil saturation in the inter-well region of water-flooded reservoirs

Silva¹

2021

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is credited to have said "the value of achievement lies in the achieving." This is true for everything in life, and I feel very lucky and thankful for all the people I worked with in the path leading to this thesis. It is also their achievement, as it would not be possible without them. I learned and was trained by the best in the field, who also showed me that an open-mind, humility, and hard-work pave the way forward. I would like to thank my supervisors, Professor Tor Bjørnstad and Professor Svein Magne Skjaeveland. Thank you, Tor, for all the insights, trust, freedom, patience, and advice! You truly are a role model, and I will be happy if I become half of what you are, both as a researcher and as a person. I could not have done this without you! Thank you Svein for all the kind and motivating words, for the example, and for the rigor with flexibility. This would not happen without you! I want to thank the team of the "Tracer Technology department" at IFE, particularly Sissel Opsahl Viig for sharing her knowledge, time, patience, and good humour, as well as for the help in disassembling and assembling instrumentation! Per Arne Hubred, one of the best humoured and cleverest engineers I ever met, who made the "magic happen" whenever experimental needs would hit a wall. Are Haugen, for all the trouble and help in welcoming me to a new workplace and a new country. Laura Ferrando-Climent, for all the small talk in coffee breaks, confidences, incentive, the friendship, and the sharing of insights about good scientific work. A special thank you to Helge Stray, my office colleague, "informal supervisor", for all the fruitful discussions and exchange of ideas, reviews, motivation, friendship, and help with personal and logistic issues upon my arrival in Norway. I would also like to thank the National IOR Centre of Norway for employing me and all its fantastic members, past and present colleagues at UiS, IFE and NORSE, especially Mahmoud Ould Metidji for the fantastic comradeship, friendship, and collaboration, Thomas Brichart vi for introducing me to the "nano-world" and for the comradeship, Jaspreet Singh Sachdeva for the optimism, motivation, and the insights about pore-scale phenomena, Eystein Opsahl for the warmth, good humour, good discussions, and excellent collaboration. Additionally, I want to thank Aksel Hiorth, Jan Ludvig Vinningland, Merete Madla Vadland, Randi Valestrand, for all the gatherings, discussions, and insights always with lots of fun! Many more are left out, each with valuable contributions. Working with the National IOR Centre of Norway was an exciting and challenging experience, filled with excellent scientific discussions, exchange of ideas and fun, without forgetting our industry partners and their valuable input. Finally, my biggest thank you to my family! To Sofia, for the strength and constant support throughout all the challenges I faced even while facing her own! None of my achievements would be possible without you as my partner and inspiration! To Maria João and Francisca, for being t...

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Section: Pyridinesmentioning

confidence: 99%

Development of new oil/water partitioning tracers for the determination of residual oil saturation in the inter-well region of water-flooded reservoirs

Silva¹

2021

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“…6−9 These physicochemical methods is often limited due to high energy consumption, high cost, and serious secondary pollution. 10,11 Biological treatment has turned out to be an eco-friendly and cost-effective option for the treatment of various recalcitrant contaminants. 12,13 However, the anaerobic bioprocess is still limited by low removal rate and poor process stability due to the toxicological nature of pyridine.…”

Section: ■ Introductionmentioning

confidence: 99%

Development of a Microalgal (Chlorella)-Bacterial (Paracoccus) Symbiotic System for Pyridine Biodegradation under Photosynthetic Oxygenation

et al. 2020

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Aerobic pyridine biodegradation, which has been proven to be efficient, was often limited by serious air pollution caused by high pyridine volatilization under traditional bubble aeration. In this study, a feasible oxygen supply strategy was developed through the coupling of an algae namely Chlorella sorokiniana FACHB-275 into aerobic biodegradation system inoculated with a pyridine-degrading bacterium namely Paracoccus sp. NJUST47. The results indicated that dissolved oxygen (DO) concentration in this algal–bacterial symbiotic system could reach as high as 7.3 ± 0.4 mg L–1 under light. Pyridine could be completely removed at initial concentration of 125 mg L–1 within 108 h in Chlorella–Paracoccus coupled system, while pyridine removal in Chlorella-only system was negligible and pyridine removal efficiency in Paracoccus-only system was as low as 38.2 ± 1.3%. Mutualistic symbiosis between Chlorella and Paracoccus, including utilization of NH4 + released from pyridine biodegradation by Chlorella and utilization of O2 produced through photo-oxygenation by Paracoccus, resulted in the accelerated growth of both Chlorella and Paracoccus. Furthermore, the favorable long-term operational stability of Chlorella–Paracoccus coupled system was verified in a dynamic membrane photobioreactor (DMPBR). Moreover, based on the identified intermediates, possible pyridine biodegradation mechanism involved in Chlorella–Paracoccus coupled system was proposed.

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“…Pyridine derivatives include mainly alkyl pyridines, halogenated pyridines, and amino-pyridines, which have been largely used as the basic raw materials for the manufacturing of industrial solvents, agriculture herbicides, and pesticides. 4-ethylpyridine (4EP) is among the pyridine derivatives utilized in coking, chemical synthesis, pharmaceutical, and pesticide industries [4][5][6][7][8]. It is characterized by its high toxicity and risk of carcinogenicity, and can pose human health and environment concerns [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…4-ethylpyridine (4EP) is among the pyridine derivatives utilized in coking, chemical synthesis, pharmaceutical, and pesticide industries [4][5][6][7][8]. It is characterized by its high toxicity and risk of carcinogenicity, and can pose human health and environment concerns [5][6][7][8][9]. In addition, 4EP is soluble in water, very stable and difficult to biodegrade [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Degradation of 4-Ethylpyridine in Water by Heterogeneous Photo-Fenton Process

2019

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In this work, the degradation of 4-ethylpyridine (4EP) in water by a heterogeneous photo-Fenton process (H2O2/Fe3O4/ultraviolet irradiation (UV)) was investigated. More rapid and effective 4EP degradation was obtained with H2O2/Fe3O4/UV than Fenton-like (H2O2/Fe3O4) and UV/H2O2, which is due to the larger production of hydroxyl radicals from the chemical and photolytic decomposition of H2O2. The operational conditions were varied during 4EP degradation experiments to evaluate the effects of pH, catalyst, concentration, and temperature on the kinetics and efficiency of H2O2/Fe3O4/UV oxidation. Under optimal conditions (100 mg/L 4EP, [H2O2] = 1000 mg/L, Fe3O4 = 40 mg/L, pH = 3 and room temperature, 300 rpm), 4EP was totally declined and more than 93% of the total organic carbon (TOC) was eliminated. Liquid chromatography analysis confirmed the formation of aromatic and aliphatic intermediates (4-hydroxypyridine, 4-pyridone, malonic, oxalic, and formic acids) that resulted in being mineralized. Ion chromatography analysis demonstrated the stoichiometric release of NH4+ ions during 4EP degradation by heterogeneous photo-Fenton oxidation. The reuse of the heterogeneous catalyst was evaluated after chemical and heat treatment at different temperatures. The heat-treated catalyst at 500 °C presented similar activity than the pristine Fe3O4. Accordingly, heterogeneous photo-Fenton oxidation can be an alternative method to treat wastewaters and groundwater contaminated with pyridine derivatives and other organic micropollutants. The combination of heterogeneous photo-Fenton oxidation with classical biological methods can be proposed to reduce the overall cost of the treatment in large-scale water treatment plants.

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Enhanced pyridine biodegradation under anoxic condition: The key role of nitrate as the electron acceptor

Cited by 70 publications

References 52 publications

Development of new oil/water partitioning tracers for the determination of residual oil saturation in the inter-well region of water-flooded reservoirs

Development of new oil/water partitioning tracers for the determination of residual oil saturation in the inter-well region of water-flooded reservoirs

Development of a Microalgal (Chlorella)-Bacterial (Paracoccus) Symbiotic System for Pyridine Biodegradation under Photosynthetic Oxygenation

Catalytic Degradation of 4-Ethylpyridine in Water by Heterogeneous Photo-Fenton Process

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