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.