One-dimensional column and three-dimensional box flushing of silicone emulsion-enhanced remediation for chlorinated solvent contaminated soils

Title
One-dimensional column and three-dimensional box flushing of silicone emulsion-enhanced remediation for chlorinated solvent contaminated soils
Authors
양중석Tae-Soon KwonJae-Young LeeKitae Baek
Keywords
Chlorinated Solvents; Flushing; Aquifer; Emulsion; Feasibility; Remediation
Issue Date
2017-03
Publisher
The Korean journal of chemical engineering
Citation
VOL 34, NO 3-746
Abstract
Aquifer contamination by dense non-aqueous phase liquids such as chlorinated solvents poses a huge threat to human health. Most chlorinated solvents biodegrade slowly under aerobic an anaerobic conditions. Furthermore, chlorinated solvents exist as free phase in aquifers and continuously contaminate groundwater because they have high density and low aqueous solubility. In this study, the feasibility of emulsion-based remediation for field application was investigated using a one-dimensional column and three-dimensional flushing. One-dimensional column experiments were performed to confirm the effects of soil components such as organics, silt, and clay on flushing performance. High organics (12%) and silt/clay (45%) inhibited solubilization of TCE. In three-dimensional flushing of TCE, a diagonal flow of emulsion was observed and downward migration of chlorinated solvents was prevented.
URI
http://pubs.kist.re.kr/handle/201004/68901
ISSN
0256-1115
Appears in Collections:
KIST Publication > Article
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