Title: In situ Flushing Web Page 
Resource Type: web links 
Producers or distributor US EPA 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Web link for product information: http://www.cluin.org/products/isf  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->In situ treatment technologies
 
Short description: ISF involves injecting or infiltrating an aqueous solution into a zone of contaminated soil or ground water, followed by extraction and above ground treatment of the elutriate (the flushing solution mixed with contaminants). In some rare cases, the flushing solution and treated contaminants may be left in place. The solutions used for ISF may consist of surfactants, cosolvents, acids, bases, oxidants, chelants, solvents, or water. Recent applications have also documented the use of cyclodextrin, a non-toxic, modified sugar, as a flushing agent. These flushing solutions typically increase the mobility or solubility (or both) of the contaminants. Many organic and inorganic contaminants can be treated using ISF, including NAPLs, VOCs, SVOCs, PCBs, pesticides, non-volatile metals, cyanides, and radioactive contaminants. 
Link to Organisation(s): EPA Environmental Protection Agency
 
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 02/01/2007