Effects of bacteria polysaccharide and cationic surfactant treatment on the sorption of volatile organic compounds by soil

In this study, the vapor-phase sorption of trichloroethylene (TCE) and benzene onto soil were assessed using Inverse Gas Chromatography (IGC). Soils were treated with two different methods: (1) Soils were incubated with bacterial polysaccharide (to increase organic matter); (2) Soil was modified with cationic surfactant tetrabutyl-ammonium (TBA) and benzyl-diemethyl-sterylammonium (BDMS) respectively. The sorption results on the treated soils were compared to sorption results on the untreated soil. This comparison indicated that there were no significant differences between the VOC sorptions on untreated soil and bacterial polysaccharide treated soil. Sorption experiments on TBA-treated and BDMS-treated soil were conducted at various moisture contents. The results showed that cation surfactant modification affects both the magnitude and mechanism of VOCs sorption. Sorption of VOCs onto TBA-treated and BDMS treated soils is primarily the result of uptake by soil organic matter, and sorption were less dependent on moisture content of soil.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Chemistry

Grantor dc:publisher

University of Nevada, Las Vegas

Year

1996

Author dc:creator

• Ma, Wenkai

Contributors dc:contributor

• Spencer M. Steinberg

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Identifier

https://oasis.library.unlv.edu/rtds/818

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-1817