In-situ groundwater remediation by selective colloid mobilization
Abstract
An in-situ groundwater remediation pump and treat technique is described which is effective for reclamation of aquifers that have been contaminated with a mixed, metal-containing waste, and which promotes selective mobilization of metal oxide colloids with a cationic surfactant, preferably a quaternary alkylammonium surfactant, without significantly reducing formation permeability that often accompanies large-scale colloid dispersion, thus increasing the efficiency of the remediation effort by enhancing the capture of strongly sorbing contaminants associated with the oxide phases. The resulting suspension can be separated from the bulk solution with controlled pH adjustments to destabilize the oxide colloids, and a clear supernatant which results that can be recycled through the injection well without further waste treatment. 3 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Georgia, Athens, GA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 321171
- Patent Number(s):
- 5846434
- Application Number:
- PAN: 8-808,253
- Assignee:
- Univ. of Georgia Research Foundation, Athens, GA (United States)
- DOE Contract Number:
- AC09-76SR00819
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 8 Dec 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; GROUND WATER; IN-SITU PROCESSING; REMEDIAL ACTION; PUMPING; WATER TREATMENT; COLLOIDS; DEMETALLIZATION; SURFACTANTS; FORMATION DAMAGE; MITIGATION
Citation Formats
Seaman, J C, and Bertch, P M. In-situ groundwater remediation by selective colloid mobilization. United States: N. p., 1998.
Web.
Seaman, J C, & Bertch, P M. In-situ groundwater remediation by selective colloid mobilization. United States.
Seaman, J C, and Bertch, P M. Tue .
"In-situ groundwater remediation by selective colloid mobilization". United States.
@article{osti_321171,
title = {In-situ groundwater remediation by selective colloid mobilization},
author = {Seaman, J C and Bertch, P M},
abstractNote = {An in-situ groundwater remediation pump and treat technique is described which is effective for reclamation of aquifers that have been contaminated with a mixed, metal-containing waste, and which promotes selective mobilization of metal oxide colloids with a cationic surfactant, preferably a quaternary alkylammonium surfactant, without significantly reducing formation permeability that often accompanies large-scale colloid dispersion, thus increasing the efficiency of the remediation effort by enhancing the capture of strongly sorbing contaminants associated with the oxide phases. The resulting suspension can be separated from the bulk solution with controlled pH adjustments to destabilize the oxide colloids, and a clear supernatant which results that can be recycled through the injection well without further waste treatment. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {12}
}