Ozonation as Pre-Treatment Step for the Biological Batch Degradation of Industrial Wastewater Containing 3-Methyl-Pyridine.

作者: D. Carini , U. von Gunten , I. J. Dunn , M. Morbidelli

DOI: 10.1080/01919510108962019

关键词:

摘要: A combined chemical-biological treatment of industrial wastewater using ozonation as the first step a Sequencing Batch Biofilm Reactor (SBBR) process, in which 3-methylpyridine (3MEP) was degraded model pollutant, has been developed. The steps entire process were ozonation, heterotrophic degradation, denitrification and nitrification. An bubble-column reactor used to produce biodegradable molecules, such formate, acetate, ammonium or nitrate. These then biologically downstream biofilm reactors. gas-liquid mass transfer coefficient (K(L)a=2.3*10(-3) (1/s)), rate constant for reaction 3MEP with ozone (k(B)=6.63 (1/Ms)) surface tension determined independently. latter stayed almost through whole batch (approximately sigma =72E-3 (N/m)). limited by during 80 minutes, when about 75 % initial pollutant degraded. Only small amount total consumed reacted directly 3MEP, while rest non-stable byproducts decomposed.

参考文章(22)
M. Moo-Young, H. W. Blanch, Design of biochemical reactors mass transfer criteria for simple and complex systems Springer, Berlin, Heidelberg. pp. 1- 69 ,(1981) , 10.1007/3-540-10464-X_16
S. Gangolli, M. L. Richardson, The dictionary of substances and their effects Royal Society of Chemistry. ,(1992)
George V. Buxton, Clive L. Greenstock, W. Phillips Helman, Alberta B. Ross, Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution Journal of Physical and Chemical Reference Data. ,vol. 17, pp. 513- 886 ,(1988) , 10.1063/1.555805
Rok Gunde, Myrtle Dawes, Stanley Hartland, Markus Koch, Surface tension of wastewater samples measured by the drop volume method Environmental Science & Technology. ,vol. 26, pp. 1036- 1040 ,(1992) , 10.1021/ES00029A025
Johannes. Staehelin, Juerg. Hoigne, Decomposition of ozone in water in the presence of organic solutes acting as promoters and inhibitors of radical chain reactions Environmental Science & Technology. ,vol. 19, pp. 1206- 1213 ,(1985) , 10.1021/ES00142A012
John A. Roth, Daniel E. Sullivan, Solubility of ozone in water Industrial & Engineering Chemistry Fundamentals. ,vol. 20, pp. 137- 140 ,(1981) , 10.1021/I100002A004
Eberhard Rischbieter, Hendrik Stein, Adrian Schumpe, Ozone Solubilities in Water and Aqueous Salt Solutions Journal of Chemical & Engineering Data. ,vol. 45, pp. 338- 340 ,(2000) , 10.1021/JE990263C