Removal of imidazolium-based ionic liquid by coupling Fenton and biological oxidation.
作者： Esther Gomez-Herrero , Montserrat Tobajas , Alicia Polo , Juan J. Rodriguez , Angel F. Mohedano
DOI: 10.1016/J.JHAZMAT.2018.10.097
关键词:
摘要: Abstract In this work, we assessed the potential of combining Fenton´s reagent and biological oxidation for removing imidazolium-based ionic liquid 1-Ethyl-3-methylimidazolium chloride (EmimCl). Fenton-like was conducted at variable H2O2 doses from 20 to 100% stoichiometric value as calculated theoretical chemical oxygen demand (COD). The dose afforded Total Organic Carbon (TOC) conversion COD removal 50 62%, respectively. Identifying reaction by-products formed low hydrogen peroxide allowed a plausible pathway EmimCl be proposed. effluents substoichiometric were less ecotoxic more biodegradable than parent liquid. effluent with 60% (TOC conversion ≅ 41%, removal ≅ 31%) subsequently subjected an effective treatment that complete starting compound, increased its ecotoxicity low–moderate level rendered it acceptably biodegradable. Biological performed in 8-h 12-h cycles sequencing batch reactor. Combining Fenton TOC around 90%.
sci-hub.se 参考文章(47)
Macarena Munoz, Carmen M. Domínguez, Zahara M. de Pedro, Asunción Quintanilla, Jose A. Casas, Sónia P.M. Ventura, João A.P. Coutinho, Role of the chemical structure of ionic liquids in their ecotoxicity and reactivity towards Fenton oxidation Separation and Purification Technology. ,vol. 150, pp. 252- 256 ,(2015) , 10.1016/J.SEPPUR.2015.07.014
Aleksandra Pieczyńska, Aleksandra Ofiarska, Agnieszka Fiszka Borzyszkowska, Anna Białk-Bielińska, Piotr Stepnowski, Stefan Stolte, Ewa Maria Siedlecka, A comparative study of electrochemical degradation of imidazolium and pyridinium ionic liquids: A reaction pathway and ecotoxicity evaluation Separation and Purification Technology. ,vol. 156, pp. 522- 534 ,(2015) , 10.1016/J.SEPPUR.2015.10.045
Andrew Jordan, Nicholas Gathergood, Biodegradation of ionic liquids – a critical review Chemical Society Reviews. ,vol. 44, pp. 8200- 8237 ,(2015) , 10.1039/C5CS00444F
M.M. Ballesteros Martín, J.A. Sánchez Pérez, J.L. Casas López, I. Oller, S. Malato Rodríguez, Degradation of a four-pesticide mixture by combined photo-Fenton and biological oxidation. Water Research. ,vol. 43, pp. 653- 660 ,(2009) , 10.1016/J.WATRES.2008.11.020
Caibo Yue, Dong Fang, Lin Liu, Ting-Feng Yi, Synthesis and application of task-specific ionic liquids used as catalysts and/or solvents in organic unit reactions Journal of Molecular Liquids. ,vol. 163, pp. 99- 121 ,(2011) , 10.1016/J.MOLLIQ.2011.09.001
A. Fabiańska, T. Ossowski, P. Stepnowski, S. Stolte, J. Thöming, E.M. Siedlecka, Electrochemical oxidation of imidazolium-based ionic liquids: The influence of anions Chemical Engineering Journal. ,vol. 198, pp. 338- 345 ,(2012) , 10.1016/J.CEJ.2012.05.108
Victor M. Monsalvo, Montserrat Tobajas, Angel F. Mohedano, Juan J. Rodriguez, Intensification of sequencing batch reactors by cometabolism and bioaugmentation with Pseudomonas putida for the biodegradation of 4‐chlorophenol Journal of Chemical Technology & Biotechnology. ,vol. 87, pp. 1270- 1275 ,(2012) , 10.1002/JCTB.3777
Kathryn M. Docherty, JaNeille K. Dixon, Charles F. Kulpa Jr, Biodegradability of imidazolium and pyridinium ionic liquids by an activated sludge microbial community Biodegradation. ,vol. 18, pp. 481- 493 ,(2007) , 10.1007/S10532-006-9081-7
Hiroyuki Ohno, Functional Design of Ionic Liquids Bulletin of the Chemical Society of Japan. ,vol. 79, pp. 1665- 1680 ,(2006) , 10.1246/BCSJ.79.1665
Sonia Sanchis, Alicia M. Polo, Montserrat Tobajas, Juan J. Rodriguez, Angel F. Mohedano, Degradation of chlorophenoxy herbicides by coupled Fenton and biological oxidation. Chemosphere. ,vol. 93, pp. 115- 122 ,(2013) , 10.1016/J.CHEMOSPHERE.2013.04.097