EVALUATION OF REMEDIATION PERFORMANCE AND COST FOR

0,31

MB

FIELD-SCALE SINGLE-PHASE MICROEMULSION (SPME) FLUSHING

14

stron

6495

ID

College of Engineering, University of Florida

2001

rok

ABSTRACT

Pump-and-treat strategies employed to contain contaminant plumes have been demonstrated to be

inefficient, and often ineffective, for remediation of aquifers contaminated by nonaqueous phase

liquids (NAPLs). This has prompted the development of alternative technologies to provide

enhanced remediation of NAPL source zones. The results reported here are from a solubilization

study wherein the objective was to achieve high NAPL remediation efficiencies using a low

concentration of chemical additives in the flushing solution. A surfactant/alcohol mixture was used

to generate a Winsor Type I system, where the NAPL was solubilized and transported as a single-

phase microemulsion (SPME). For the SPME process, only 5.5 wt% of the flushing solution

comprised chemical additives. The costs associated with this project are discussed and approaches

aimed at reducing costs are suggested.