Abstract
The soil vapor extraction system is an effective technique to remediate the soil contaminated by volatile organic compounds. In order to remediate all over the contaminated soil evenly, extraction wells must be located properly and the extraction equipment should be designed appropriately to meet the required capacity. Dominant factors of soil properties which influence the remediation efficiency are clarified quantitatively through the case studies of various site records. As a result, radiuses of influence spread by negative pressure can beclassified depending on the nature of the soil, and air permeability correlates with gas porosity. The developed remediation efficiency analysis can predict the trend of vapor concentration diminution, and fairly agree with site records by applying the concept of effective air volume ratio.
