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| Gerrard,Andrew Mark; Havranek,Josef; Novak,Vratislav; Halecky,Martin; Jones,Kim; Soccol,Carlos Ricardo; Paca,Jan. |
| The aim of this work was the study a trickling biofilter, where water was circulated throughout the bed. In the first steady state experiment, the packing materials used were 25mm Pall rings. The airflow rate was increased gradually and the concentration of styrene in the air stream was held constant. In the second experiment, 15mm Pall rings were used. In this case, the feed contained both styrene and a small amount of acetone. The concentration of acetone and the air flow rate were kept constant, but the styrene inlet concentration was increased. The concentrations were measured at the input, and also at an intermediate and the outlet position in the biotrickling filter to determine the concentration profile along the reactor. Using the values of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotrickling filter; Steady state; Unsteady state; Mathematical models; Styrene; Acetone. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500028 |
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| Gerrard,Andrew Mark; Páca Júnior,Jan; Kostecková,Alena; Páca,Jan; Stiborová,Marie; Soccol,Carlos Ricardo. |
| This paper proposes the use of a preliminary, phenol removal step to reduce peak loads arriving at a conventional effluent plant. A packed bed reactor (PBR) using polyurethane foam, porous glass and also cocoa fibres as the inert support material was used. Experiments have been carried out where the flow-rates, plus inlet and outlet phenol concentrations were measured. A simple, plug-flow model is proposed to represent the results. Zero, first order, Monod and inhibited kinetics rate equations were evaluated. It was found that the Monod model gave the best fit to the experimental data and allowed linear graphs to be plotted. The Monod saturation constant, K, is approximately 50 g m-3, and ka is around 900 s-1. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradation; Phenol; Aerobic reactor; Models. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500018 |
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