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U.S. Department of Energy
Office of Scientific and Technical Information

Development of the integrated in situ lasagna process

Conference ·
OSTI ID:229564
; ;  [1]
  1. Monsanto Company, St. Louis, MO (United States); and others
Contamination in deep, low permeability soils poses a significant technical challenge to in-situ remediation efforts. Poor accessibility to the contaminants and difficulty in uniform delivery of treatment reagents have rendered existing in-situ methods such as bioremediation, vapor extraction, and pump and treat rather ineffective when applied to low permeability soils present at many contaminated sites. Recently the use of electrokinetics as an in situ method for soil remediation has received increasing attention due to its unique applicability to low-permeability soils. Electrokinetics includes the transport of water (electroosmosis) as well as ions (electromigration) as a result of an applied electric field. For remedial applications, water is typically introduced into the soil at the anode to replenish the water flowing towards the cathode due to electroosmosis. The water flow is utilized to flush organic contaminants from the subsurface soil to the ground surface at the cathode region for further treatment or disposal. This report describes a treatment process under development termed the LASAGNA process which incorporates electrokinetics, along with the establishment of degradation zones, for pollutant removal.
Research Organization:
USDOE Morgantown Energy Technology Center, WV (United States)
DOE Contract Number:
AR21-94MC31185
OSTI ID:
229564
Report Number(s):
DOE/METC--96/1021-Vol.2; CONF-9510108--Vol.2; ON: DE96000552
Country of Publication:
United States
Language:
English