Surfactant-enhanced remediation of a trichloroethene-contaminated aquifer. 2. transport of TCE

Article Abstract:

A trichloroethene (TCE)-contaminated aquifer at Picattinny Arsenal, NJ was injected with a surfactant, Triton x-100, to determine whether the surfactant enhances the remediation and transport of TCE. A slight increase in TCE concentration was seen when the surfactant reached the wells. Two model formulations, two-site and multisite models, proved efficient in measuring rate-limited sorption. Results reveal that the injection of Triton X-100 can increase the rate of TCE desorption by as much as 30%.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Trichloroethylene, New Jersey, Organic water pollutants, Organic water pollution

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Fourier transform Raman spectroscopy of sorbed HDTMA and the mechanism of chromate sorption to surfactant-modified clinoptilolite

Article Abstract:

Raman spectroscopy of high hexadecyltrimethylammonium bromide (HDTMA) loading levels reveal that sorbed HDTMA was similar in conformation to solution micelles. This finding suggest that HDTMA may contain anion exchange sites. Lower loading reveal that the sorbed HDTMA tail groups appear to have more disorder that is similar to solution monomers.

Analytical Laboratory Instrument Manufacturing, Analytical instruments, Mass Spectrometers & Spectroscopy, Water pollution, Raman spectroscopy

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