Title

Physical Properties Of Nano-Scale And Micro-Scale Zero Valent Iron Emulsions

Abstract

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).

Publication Date

12-1-2002

Publication Title

ACS Division of Environmental Chemistry, Preprints

Volume

42

Issue

1

Number of Pages

71-76

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

23844471978 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/23844471978

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