Soil cleanup by in-situ surfactant flushing. VII. Determination of mass transfer coefficients for reclamation of surfactant for recycle
- Vanderbilt Univ., Nashville, TN (United States)
The contamination of soils and groundwater with volatile and/or nonvolatile organics from underground storage tanks, spills, and improper waste disposal presents a major remediation problem in the United States and other industrial nations. Mass transfer coefficients were determined for the extraction of naphthalene in 50 and 100 mM aqueous sodium dodecylsulfate (SDS) solutions (the continuous phase) into hexane (dispersed phase). The effect of surfactant was explored in a series of single drop experiments. Mass transfer coefficients determined experimentally fall between the values predicted by correlations for circulating and noncirculating drops. The presence of SDS does appear to reduce the mass transfer coefficients as compared to those for pure water.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 28570
- Journal Information:
- Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 1 Vol. 30; ISSN 0149-6395; ISSN SSTEDS
- Country of Publication:
- United States
- Language:
- English
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