Catalytic ozonation for the removal of organic contaminants in water on ZSM-5 zeolites
作者： Amir Ikhlaq , David R. Brown , Barbara Kasprzyk-Hordern
DOI: 10.1016/J.APCATB.2014.02.010
关键词: Hydroxyl radical 、 Acetic acid 、 Inorganic chemistry 、 Catalysis 、 Organic chemistry 、 ZSM-5 、 Humic acid 、 Chemistry 、 Pollutant 、 Ozone 、 Adsorption
摘要: The results presented in this study aim to show the potential of ozonation common water pollutants (volatile organic chemicals, pharmaceuticals and carboxylic acids, by-products) on ZSM-5 zeolites investigate effect nature efficiency catalytic ozonation. Both H-ZSM-5 Na-ZSM-5 forms with different SiO2/Al2O3 ratios counter ions (Z1000H:SiO2/Al2O3 = 1000, Z900Na:SiO2/Al2O3 900, Z25H:SiO2/Al2O3 25 Z25Na:SiO2/Al2O3 25) have been used. effects pH, adsorption, presence hydroxyl radical scavengers, phosphates humic acids investigated. revealed that could substantially enhance removal VOCs ibuprofen when compared alone adsorption plays a key role effectiveness process. Zeolites high were found capacity towards as result activity. On other hand low had its ionised form. Catalytic processes be pH dependent highest activity at acidic pH. scavengers (phosphates acid) did not significant contaminants zeolites. Despite ibuprofen, catalyse acetic acid studied values. It is therefore suggested proceeds via direct reactions molecular ozone adsorbed surface
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P.C.C. Faria, J.J.M. Órfão, M.F.R. Pereira, Activated carbon catalytic ozonation of oxamic and oxalic acids Applied Catalysis B-environmental. ,vol. 79, pp. 237- 243 ,(2008) , 10.1016/J.APCATB.2007.10.021
H S Brown, D R Bishop, C A Rowan, The role of skin absorption as a route of exposure for volatile organic compounds (vocs) in drinking water American Journal of Public Health. ,vol. 74, pp. 479- 484 ,(1984) , 10.2105/AJPH.74.5.479
B Kasprzyk-Hordern, A Dabrowska, J Świetlik, J Nawrocki, The application of the perfluorinated bonded alumina phase for natural organic matter catalytic ozonation Journal of Environmental Engineering and Science. ,vol. 3, pp. 41- 50 ,(2004) , 10.1139/S03-052
Johannes. Staehelin, Juerg. Hoigne, Decomposition of ozone in water: rate of initiation by hydroxide ions and hydrogen peroxide Environmental Science & Technology. ,vol. 16, pp. 676- 681 ,(1982) , 10.1021/ES00104A009
Marc M. Huber, Silvio Canonica, Gun-Young Park, Urs von Gunten, Oxidation of pharmaceuticals during ozonation and advanced oxidation processes Environmental Science & Technology. ,vol. 37, pp. 1016- 1024 ,(2003) , 10.1021/ES025896H
Maria Klavarioti, Dionissios Mantzavinos, Despo Kassinos, Removal of residual pharmaceuticals from aqueous systems by advanced oxidation processes. Environment International. ,vol. 35, pp. 402- 417 ,(2009) , 10.1016/J.ENVINT.2008.07.009
Nor Aishah Saidina Amin, Javaid Akhtar, H.K. Rai, Screening of combined zeolite-ozone system for phenol and COD removal Chemical Engineering Journal. ,vol. 158, pp. 520- 527 ,(2010) , 10.1016/J.CEJ.2010.01.042
Amir Ikhlaq, David R. Brown, Barbara Kasprzyk-Hordern, Mechanisms of catalytic ozonation: An investigation into superoxide ion radical and hydrogen peroxide formation during catalytic ozonation on alumina and zeolites in water Applied Catalysis B-environmental. ,vol. 129, pp. 437- 449 ,(2013) , 10.1016/J.APCATB.2012.09.038
Fernando J Beltrán, Francisco J Rivas, Ramón Montero-de-Espinosa, None, Catalytic ozonation of oxalic acid in an aqueous TiO2 slurry reactor Applied Catalysis B-environmental. ,vol. 39, pp. 221- 231 ,(2002) , 10.1016/S0926-3373(02)00102-9
Barbara Kasprzyk-Hordern, Jacek Nawrocki, The feasibility of using a perfluorinated bonded alumina phase in the ozonation process Ozone-science & Engineering. ,vol. 25, pp. 185- 197 ,(2003) , 10.1080/01919510390481513