Numerical simulations of sulphate emissions from the unsaturated zone on NA processes in ground water - reactive transport modelling of a benzene and naphthalene contaminated plume

Hornbruch, G., Schäfer, D. and Dahmke, A. (2007) Numerical simulations of sulphate emissions from the unsaturated zone on NA processes in ground water - reactive transport modelling of a benzene and naphthalene contaminated plume Grundwasser, 12 (2). pp. 133-143. DOI 10.1007/s00767-007-0023-z.

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Abstract

The supply of electron acceptors from leachate through the unsaturated zone could represent a special boundary condition with regard to contaminant plume spreading in groundwater. This is an important issue for the acceptance of monitored natural attenuation (MNA) strategies and the prediction of NA processes, but which to date has received little attention. The results of the numerical simulations considered herein show problems in parameterisation of the Monod kinetic approach used for modelling biodegradation processes under sulphate reducing conditions and show the effects of different sulphate loads on the future spreading of a benzene and naphthalene plume at a former coking plant. The results indicate a strong influence of sulphate supply and thus highlight the importance of quantifying these electron acceptor sources and loads, and of defining the controlling parameters for predicting longterm trends in plume development.

Document Type: Article
Keywords: natural attenuation reactive transport modelling sulphate emission BTEX PAH polycyclic aromatic-hydrocarbons natural attenuation anaerobic biodegradation column systems field-scale flow degradation kinetics aquifers uncertainty
Research affiliation: Kiel University
DOI etc.: 10.1007/s00767-007-0023-z
ISSN: 1430-483X
Date Deposited: 12 Jan 2012 05:46
Last Modified: 08 Oct 2012 10:20
URI: http://eprints.uni-kiel.de/id/eprint/15912

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