Liquid flow residence time in a fibrous fixed bed reactor with recycle.
作者： Martin Martinov , Dimiter Hadjiev , Serafim Vlaev
DOI: 10.1016/J.BIORTECH.2009.09.059
关键词: Environmental engineering 、 Biofilter 、 Residence time (fluid dynamics) 、 Materials science 、 Superficial velocity 、 Mechanics 、 Flow velocity 、 Flow (psychology) 、 Bubble 、 Fluid dynamics 、 Residence time distribution
摘要: Waste removal efficiency of gas-liquid biofilter reactors for waste water treatment depends on its flow regime and residence time distribution (RTD) as key parameters bio-reactor performance. The present study reports RTD in a fibrous fixed bed biofilm reactor related to fluid velocity range appropriate operation. data from tracer experiments are correlated terms the one-parameter "tanks-in-series" model. aerated function is found be dependent net liquid gas phase superficial U(L) U(G). Liquid internal recirculation exhibited small effect comparable with flow. A power law relationship relating number perfectly mixed cells elaborated. Assuming similarity prototype real vessels' fields, equation well corresponding can used design scale-up. Comparison over model obtained bubble columns at low shows results this previous mesh wire packing.
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