Vacuum Enhanced Recovery with Bioventing

BioSVE incorporates soil vapor extraction, vacuum enhanced recovery and biodegradation into one easy-to-use screening model. Quite often, field situations require tools to evaluate different remediation schemes prior to implementation. While these screening tools usually require extensive site data (which can be very expensive or impossible to collect in the available time frame), BioSVE allows site evaluation with few sampling events, quickly. Vacuum Enhanced Recovery (bioslurping), coupled with biodegradation, is a popular emerging clean-up technology, and BioSVE takes advantage of this industry trend with useful tools for hydrocarbon contaminant sites. A typical hydrocarbon spill/leak may contain from 20 to more than 100 components, and BioSVE can model recovery and degradation of up to 250 components. BioSVE allows for modeling of contaminants partitioned among water, vapor, free hydrocarbon and solid phases. This gives the user power to develop remediation strategies for free product recovery, soil vacuum extraction, natural or engineered biodegradation, etc., with high confidence and lower costs to total remediation efforts.


BioSVE Technical and Interface Information

Soil Vapor Extraction (SVE) has proved successful for cleanup of the unsaturated zones at numerous sites contaminated with volatile hydrocarbons. An incidental effect of flushing air through the soil is that the renewed levels of oxygen stimulate aerobic biodegradation in soils and the negative gas pressures assist in enhanced hydrocarbon recovery (Vacuum Enhanced Recovery) with minimal smearing of the free hydrocarbon plume.

BioSVE simulates soil vapor extraction based on the chemical equilibrium model of Johnson et al. (1990). A user defined empirical free product recovery function is used to mimic vacuum enhanced recovery. An instantaneous reaction between oxygen and organic species is assumed and an oxygen limited approach is used to model biodegradation. BioSVE models recovery versus time of up to 250 components partitioned among water, vapor, free hydrocarbon and solid phases. Additional features of BioSVE are:


The following are the input parameters needed in BioSVE:

BioSVE Pre- and Post-processor

The "Species Data" page allows you to enter and edit the species names and associated parameters used in the current project.


Windows 3.x/Windows 95/Windows NT and 4 MB RAM.

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Incredible NetworksΤελευταία Ενημέρωση 27 Ιουλίου 2004 - Last Revised on July 27th 2004
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