Voorspelling van de biodegradatie van gesubstitueerde monocyclische aromaten in de bodem

2.50
Hdl Handle:
http://hdl.handle.net/10029/257497
Title:
Voorspelling van de biodegradatie van gesubstitueerde monocyclische aromaten in de bodem
Authors:
Verschoor AJ
Other Titles:
[Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils.]
Abstract:
The project "Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils" has resulted in the development of the model SPAR (Soil Properties Activity Relationship), which describes the initial and maximal biodegradation rate of chlorophenols and chloroanilines in various natural soils. Major part of this report is dedicated to the description of experiments and model formulation and performance. It appeared that the variation in biodegradation rates between soils could be described by a Michaelis-Menten equation with a sorption-corrected dosage (pore water concentration) and a pH-dependent Vmax. The model was used to calculate the biodegradation potential of soils of the European Community and the Netherlands. In the last chapter results of other parts of the research are summarized to give an overview of the project "Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils". It appeared that bound residue formation is related to the soil organic matter content. Chloroanilines showed different affinities for fulvic acids, humic acids and humine. A second chlorinesubstituent decreased bound residue formation. Bound residues were not as inaccessible as we expected, 6-10% of the soil-bound 4-monochloroaniline-residue was mineralized by microbiological activity. The effect of pentachlorophenol on the mineralization rate of 4-MCP was studied. The combination of these data with a biodegradation QSAR would be a relevant extension of SPAR, for prediction of biodegradation rates of combinations of xenobiotic compounds.<br>
Publisher:
Rijksinstituut voor Volksgezondheid en Milieu RIVM
Issue Date:
31-Jul-1993
URI:
http://hdl.handle.net/10029/257497
Additional Links:
http://www.rivm.nl/bibliotheek/rapporten/715503001.html
Type:
Onderzoeksrapport
Language:
en
Sponsors:
Speerpuntprogramma Bodemonderzoek (PCBB)
Appears in Collections:
RIVM official reports

Full metadata record

DC FieldValue Language
dc.contributor.authorVerschoor AJ-
dc.date.accessioned2012-12-12T15:40:46Z-
dc.date.available2012-12-12T15:40:46Z-
dc.date.issued1993-07-31-
dc.identifier715503001-
dc.identifier.urihttp://hdl.handle.net/10029/257497-
dc.description.abstractThe project "Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils" has resulted in the development of the model SPAR (Soil Properties Activity Relationship), which describes the initial and maximal biodegradation rate of chlorophenols and chloroanilines in various natural soils. Major part of this report is dedicated to the description of experiments and model formulation and performance. It appeared that the variation in biodegradation rates between soils could be described by a Michaelis-Menten equation with a sorption-corrected dosage (pore water concentration) and a pH-dependent Vmax. The model was used to calculate the biodegradation potential of soils of the European Community and the Netherlands. In the last chapter results of other parts of the research are summarized to give an overview of the project "Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils". It appeared that bound residue formation is related to the soil organic matter content. Chloroanilines showed different affinities for fulvic acids, humic acids and humine. A second chlorinesubstituent decreased bound residue formation. Bound residues were not as inaccessible as we expected, 6-10% of the soil-bound 4-monochloroaniline-residue was mineralized by microbiological activity. The effect of pentachlorophenol on the mineralization rate of 4-MCP was studied. The combination of these data with a biodegradation QSAR would be a relevant extension of SPAR, for prediction of biodegradation rates of combinations of xenobiotic compounds.<br>en
dc.description.sponsorshipSpeerpuntprogramma Bodemonderzoek (PCBB)-
dc.format.extent168 p-
dc.language.isoen-
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVM-
dc.relation.ispartofRIVM Rapport 715503001-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/715503001.html-
dc.subject13nl
dc.subjectaromatische verbindingennl
dc.subjectbiologische afbraaknl
dc.subjectbodemnl
dc.subjectwiskundig modelnl
dc.subjectchloorfenolennl
dc.subjectaromatic hydrocarbonsen
dc.subjectbiodegradationen
dc.subjectsoilen
dc.subjectmodellingen
dc.subjectchlorophenolsen
dc.subjectbeschikbaarheiden
dc.subjectkinetieken
dc.subjectchlooranilinesen
dc.subjectchloroanilinesen
dc.titleVoorspelling van de biodegradatie van gesubstitueerde monocyclische aromaten in de bodemen
dc.title.alternative[Prediction of the biodegradation of substituted monocyclic aromatic compounds in soils.]nl
dc.typeOnderzoeksrapport-
dc.date.updated2012-12-12T15:40:47Z-
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