In-situ groundwater remediation by selective colloid mobilization
- New Ellenton, SC
- Aiken, SC
An in-situ groundwater remediation pump and treat technique effective for reclamation of aquifers that have been contaminated with a mixed, metal-containing waste, 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.
- Research Organization:
- UNIV OF GEORGIA RESEARCH FDN
- DOE Contract Number:
- AC09-76SR00819
- Assignee:
- University of Georgia Research Foundation (Athens, GA)
- Patent Number(s):
- US 5846434
- OSTI ID:
- 872021
- Country of Publication:
- United States
- Language:
- English
Similar Records
Colloid and ionic tracer migration within SRS sediments: Final summary
Formation of a barrier to groundwater contaminants by the injection of zero-valent iron colloids: Suspension properties
Related Subjects
groundwater
remediation
selective
colloid
mobilization
pump
treat
technique
effective
reclamation
aquifers
contaminated
mixed
metal-containing
waste
promotes
metal
oxide
colloids
cationic
surfactant
preferably
quaternary
alkylammonium
significantly
reducing
formation
permeability
accompanies
large-scale
dispersion
increasing
efficiency
effort
enhancing
capture
strongly
sorbing
contaminants
associated
phases
resulting
suspension
separated
bulk
solution
controlled
ph
adjustments
destabilize
supernatant
results
recycled
injection
treatment
metal oxide
waste treatment
cationic surfactant
oxide phase
water remediation
containing waste
in-situ groundwater
groundwater remediation
colloid dispersion
controlled ph
/210/405/