Title: Test of a In-Well Aerator in a low yielding groundwater aquifer. 
Resource Type: document --> technical publication --> report 
Country: Denmark 
Language(s): Danish
Year: 2003 
Availability: Environmental project, Miljørapport nr. 866 
Author 1/Producer: Sørensen, M. 
Other Authors/Producers: Hvidberg, B. and Broch, H. 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Publisher: The Danish Environmental Protection Agency, Miljøstyrelsen 
Publisher City: Strandgade 29, DK-1405 Copenhagen K, Denmark 
ISBN: 87-7944-722-8 
Report / download web link (=direct link): http://www2.mst.dk/common/Udgivramme/Frame.asp?pg=http://www ...  
Format (e.g. PDF): PDF 
Size: (e.g. 20mb) 2.1 
EUGRIS Keyword(s): Contaminated land-->Contaminated land overview
Contaminated land-->Remediation options-->In situ treatment technologies
Contaminated land-->Remediation options-->Remediation options overview
Short description: The test of the In-Well Aerator has demonstrated an effective extraction and clean-up of groundwater contaminated with dissolved chlorinated solvents. This in-situ method combines ground water pumping using a air-lift siphon and stripping of volatile contaminants from wells with low yields. 
Long description: This in-situ method involves air injection into the groundwater through a aerator placed in the well which causes abstraction of groundwater from the well and stripping of volatile contaminants from the abstracted water. The cleanup efficiency has been 98.9- 99.9 %. For low yielding aquifers with a small lift height and high dissolved content of chlorinated solvents, the method is economically attractive compared to traditional pump and treat techniques both with respect to plant and production costs. The primary advantage is that it requires very little space or maintenance, but provides an effective and robust clean-up for aquifers with low and variable yields. 
Submitted By: Dr Jacqueline Falkenberg WhoDoesWhat?      Last update: 13/04/2007