Biodegradatie xenobiotica VIII. Microbiologische afbraak van naftaleen geadsorbeerd aan actieve kool: een modelsysteem voor extractieslib
dc.contributor.author | Sterkenburg, A | |
dc.contributor.author | Oostenbrink, I | |
dc.contributor.author | van Andel, JG | |
dc.date.accessioned | 2012-12-12T16:14:34Z | |
dc.date.available | 2012-12-12T16:14:34Z | |
dc.date.issued | 1992-01-31 | |
dc.identifier | 738517008 | |
dc.identifier.uri | http://hdl.handle.net/10029/257846 | |
dc.description.abstract | Abstract niet beschikbaar | |
dc.description.abstract | Experimental research has been done on a model system that concerns the desorption of polycyclic aromatic hydrocarbons as a limiting factor for the biotechnological sanitation of soil fractions. The system was confinedto the relatively well-degradable napthhalene; this substrate was adsorped as a vapour onto powdered activated carbon by means of a novel method. Increased loading of the adsorbend, or a larger amount of adsorbens present (i.e., an increased rate of naphthalene desorption), had a positive effect on the growth rate. Under nonbiotic conditions, the naphthalene desoprtion rate amounted to, maximally, only 10% of that which was necessary to sustain maximal growth of bacteria under such conditions. From this it was inferred that growth was transfer-limited. In the presence of micro-organisms, the constant of desorption kd had the same value as found in sterile systems (4.8 x 10 -2 m.h -1). Computer simulations based on a mathematical model of growth on adsorbed naphthalene indicated that the process by which naphthalene became available was limited by the rate of desorption. | |
dc.description.sponsorship | Programmabureau Biotechnologie OW | |
dc.format.extent | 67 p | |
dc.language.iso | nl | |
dc.relation.ispartof | RIVM Rapport 738517008 | |
dc.relation.url | http://www.rivm.nl/bibliotheek/rapporten/738517008.html | |
dc.subject | 17 | nl |
dc.subject | 92-1 | nl |
dc.subject | polycyclische aromatische koolwaterstoffen | nl |
dc.subject | pak | nl |
dc.subject | biodegradatie; naftaleen | nl |
dc.subject | extractieslib | nl |
dc.subject | actieve kool | nl |
dc.subject | biobeschikbaarheid | nl |
dc.title | Biodegradatie xenobiotica VIII. Microbiologische afbraak van naftaleen geadsorbeerd aan actieve kool: een modelsysteem voor extractieslib | nl |
dc.title.alternative | Biodegradation xenobiotics VIII. Microbiological degradation of naphthalene adsorbed onto activated carbon: a model system for extraction sludge | en |
dc.type | Report | |
dc.date.updated | 2012-12-12T16:14:35Z | |
html.description.abstract | Abstract niet beschikbaar | |
html.description.abstract | Experimental research has been done on a model system that concerns the desorption of polycyclic aromatic hydrocarbons as a limiting factor for the biotechnological sanitation of soil fractions. The system was confinedto the relatively well-degradable napthhalene; this substrate was adsorped as a vapour onto powdered activated carbon by means of a novel method. Increased loading of the adsorbend, or a larger amount of adsorbens present (i.e., an increased rate of naphthalene desorption), had a positive effect on the growth rate. Under nonbiotic conditions, the naphthalene desoprtion rate amounted to, maximally, only 10% of that which was necessary to sustain maximal growth of bacteria under such conditions. From this it was inferred that growth was transfer-limited. In the presence of micro-organisms, the constant of desorption kd had the same value as found in sterile systems (4.8 x 10 -2 m.h -1). Computer simulations based on a mathematical model of growth on adsorbed naphthalene indicated that the process by which naphthalene became available was limited by the rate of desorption. |