Title: Development of a Functionalized Polymer-Coated Silica for the Removal of Uranium from Groundwater. 
Resource Type: document --> technical publication --> journal article 
Country: EU Projects 
Year: 2003 
Availability: Environmental Science & Technology, 37, 4011-4016. 
Author 1/Producer: Bryant, D.E. 
Other Authors/Producers: Stewart, D.I., Kee, T.P. & Barton, C.S. 
Author / Producer Type: University research group / research institute 
Article Weblink (=direct link): http://pubs.acs.org/cgi-bin/abstract.cgi/esthag/2003/37/i17/ ...  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->Permeable reactive barriers
Contaminated land-->Remediation options-->Remediation options overview
Contaminated land-->Risk management-->Risk management overview
Contaminated land-->Risk management-->Selection of remediation options
Contaminated land-->Soil and groundwater processes-->Contaminant hydrology
Contaminated land-->Soil and groundwater processes-->Soil and groundwater processes overview
Groundwater protection-->Groundwater protection overview
 
Short description: A material, called PANSIL, has been developed for the treatment of uranium-contaminated groundwater using permeable reactive barriers. It is a tailored ligand system that selectively removes a contaminant from solution. It is highly effective at sequestering UO22+ when the pH is between about 5 and 8 and can preferentially sequester UO22+ from solutions that are typical of the groundwater from mine tailings sites. Uranium sequestration capacity exceeds 4000 mg of UO2 per kg of PANSIL at pH 4.5 when the dissolved UO22+ concentration is greater than 300 mg/L. PANSIL largely retains the permeability and strength of the sand employed and therefore has suitable engineering properties for permeable reactive barrier applications. 
Link to Project(s): PEREBAR Long-term performance of permeable reactive barriers used for the remediation of contaminated groundwater
 
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 29/06/2007