ISSN:
0006-3592
Keywords:
phenol gaseous emissions
;
biofiltration
;
Pseudomonas putida
;
elimination capacity
;
deodorization
;
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The macro-kinetic behavior of phenol removal from a synthetic exhaust gas was investigated theoretically as well as experimentally by means of two identical continuously operating laboratory-scale biological filter bed columns. A mixture of peat and glass beads was used as filter material. After sterilization it was inoculated with a pure strain of Pseudomonas putida, as employed in previous experimental studies. To determine the influence of the superficial gas flow rate on biofilter performance and to evaluate the phenol concentration profiles along the column, two series of continuous tests were carried out varying either the inlet phenol concentration, up to 1650 mg · m-3, or the superficial gas flow rate, from 30 to 460 m3 · m-2 · h-1. The elimination capacity of the biofilter is proved by a maximum volumetric phenol removal rate of 0.73 kg · m-3 · h-1. The experimental results are consistent with a biofilm model incorporating first-order substrate elimination kinetics. The model may be considered a useful tool in scaling-up a biofiltration system. Furthermore, the deodorization capacity of the biofilter was investigated, at inlet phenol concentrations up to 280 mg · m-3 and superficial gas flow rates ranging from 30 to 92 m3 · m-2 · h-1. The deodorization of the gas was achieved at a maximum inlet phenol concentration of about 255 mg · m-3, operating at a superficial gas flow rate of 30 m3 · m-2 · h-1. © 1996 John Wiley & Sons, Inc.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
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