ISSN:
1432-0614
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Summary The semicontinuous and continuous degradation of phenol by Pseudomonas putida P8 which was immobilized on activated carbon was investigated. The amount of bacteria immobilized on the activated carbon surface dependend on the cell concentration in the suspension and on the type of activated carbon. In a continuous process running for four weeks the biomass, which accumulated in the activated carbon fixed bed, was removed periodically. The average phenol degradation rate in this process was 360 mg/1 h. The degradation activity of the bacteria for phenol, measured by the activity of the catechol-2,3-dioxygenase, was stimulated by the activated carbon. During the fermentation processes the carbon particles were covered with a biofilm. The bacteria grew, especially in the caverns and the entrances of the macropores, whereby the phenol adsorption by the activated carbon was decreased.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00256224
Permalink