Prediction and minimization of vertical migration of DNAPLS using surfactant enhanced aquifer Remediation at neutral buoyancy

摘要

Surfactant enhanced aquifer remediation(SEAR)had prediously been thought to require a capillary barrier below the contaminated zone to prevent the vertical migration of a microemulsion containing solubilized DNAPL. This paper shows the vertical migration of the dense microemul- sion is described and predicted by the value of three dimensionless scaling groups. Embedded within these scaling groups are four design parameters. The value of these aprameters can be manipulated in order to reduce the amount of vertical migration anticipated for a given remedia- tion design.