Physical Properties Of Nano-Scale And Micro-Scale Zero Valent Iron Emulsions
The use of iron in reductively dehalogenating chlorinated compounds is a proven method of remediation of trichloroethylene (TCE). The general characteristics of the iron emulsion were determined given the nature of TCE. With its low solubility in water (0.11 g/100 mL) and density (1.462 g/mL), the emulsified iron penetrated the DNAPL pool in the subsurface, allowing the DNAPL to partition into each individual micelle. The emulsions flowed through the soil rather smoothly up to a point. Previous formulations were substituted with nano iron and tested as to their pumpability. The results were very positive, having injected and saturated the soil with ∼ 375 mL of the nano-scale iron emulsion through the entire length of a 2 ft column. Pressures reached 160 psi while being injected from a pressurized cylinder. Emulsion that had passed through the column was observed under a microscope, and the micellular structure was still intact. The oil separation produced under these pressures was minimal. This is an abstract of a paper presented at the 223rd ACS National Meeting (Orlando, FL 4/7-11/2002).
ACS Division of Environmental Chemistry, Preprints
Number of Pages
Article; Proceedings Paper
Source API URL
Huntley, C. A.; DeVor, R. W.; and Clausen, C. A., "Physical Properties Of Nano-Scale And Micro-Scale Zero Valent Iron Emulsions" (2002). Scopus Export 2000s. 2294.