00819976

Component

https://doi.org/10.3141/1755-15

http://scholar.google.com...Gabr&publication_year=2001

An investigation of trichloroethylene (TCE) mobility in glacial till, as manifested by adsorption and desorption behavior with water, surfactant, and sodium chloride, was conducted. In conjunction with natural attenuation, adsorption and desorption kinetics of surfactant are of interest if other remediation technologies, such as pump and treat, are used. A soil solution ratio of 2:1 with equilibrium times of 48 and 40 h for adsorption and desorption, respectively, was found to produce representative kinetics. The adsorption and desorption partition coefficients for TCE in water are 1.25 mL/g and 11.25 mL/g, respectively. The difference in these values is attributed to the heterogeneous nature of the test soil and hindered diffusion through the intraparticles of the soil and organic matter. Sorption of TCE to glacial till is reduced during adsorption and desorption testing with the use of a surfactant due to a decrease in interfacial tension and an increase in micellar solubilization. However, the effects of surfactant concentrations greater than 4% are minimal. The sodium chloride concentration is also varied during testing. As salinity increases, the adsorption and desorption coefficients increase and the solubility potential decreases for the same surfactant concentration. These results are attributed to Winsor Type phase changes that were observed independently of adsorption and desorption testing by varying the amounts of surfactant and sodium chloride with TCE. The methods used and results obtained from the testing program are described, and the mobility of the TCE within the test soil in view of the test parameters is discussed.

This paper appears in Transportation Research Record No. 1755, Geology and Properties of Earth Materials 2001.

English

p. 141-148

2001

Transportation Research Record

0309072166

Figures (5) ; References (17) ; Tables (1)

Adsorption; Desorption; Fines (Materials); Glacial soils; Kinetics; Sodium chloride; Soil remediation; Surface active agents; Water

Trichloroethylene

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Nov 8 2001 12:00AM

• AUTOMATED MEASUREMENT OF TOTAL SUCTION CHARACTERISTICS IN HIGH-SUCTION RANGE: APPLICATION TO ASSESSMENT OF SWELLING POTENTIAL
• DEVELOPMENT OF DATABASE FOR LOUISIANA HIGHWAY BRIDGE-SCOUR DATA
• ENVIRONMENTAL DETERIORATION MODEL FOR FLEXIBLE PAVEMENT DESIGN: AN ONTARIO EXAMPLE
• EVALUATING MOISTURE SENSORS AND MONITORING SEASONAL MOISTURE VARIATION IN LOW-VOLUME ROADS
• FORMAT FOR GEOTECHNICAL DATA EXCHANGE IN THE UNITED KINGDOM
• GEOGRAPHIC INFORMATION SYSTEM-BASED EVALUATION OF GEOTECHNICAL BOREHOLE LOG QUALITY
• IMPLEMENTATION OF MINIATURE CONE PENETROMETER IN ROADWAY DESIGN AND CONSTRUCTION
• INFLUENCE OF HIGHWAY RUNOFF CHEMISTRY, HYDROLOGY, AND RESIDENCE TIME ON NONEQUILIBRIUM PARTITIONING OF HEAVY METALS: IMPLICATIONS FOR TREATMENT AT THE HIGHWAY SHOULDER
• INTEGRATING SEISMIC AND DEFLECTION METHODS TO ESTIMATE PAVEMENT MODULI
• LONG-TERM STRENGTH AND DURABILITY OF HYDRATED FLY-ASH ROAD BASES
• PREDICTION OF WINTER ROUGHNESS BASED ON ANALYSIS OF SUBGRADE SOIL VARIABILITY
• PROTOTYPE TIRE-SHRED EMBANKMENT CONSTRUCTION
• QUALITY ASSESSMENT DURING ROAD FORMATION AND FOUNDATION CONSTRUCTION: USE OF FALLING-WEIGHT DEFLECTOMETER AND LIGHT DROP WEIGHT
• REAL-TIME EVALUATION OF SITE CHARACTERIZATION TO DIRECT AND CONCLUDE EXPLORATION
• SHEAR STRENGTH OF LARGE-SIZE SHREDDED SCRAP TIRES
• USER QUERY INTERFACE FOR THE DEEP-FOUNDATIONS LOAD-TEST DATABASE
• WETTING-INDUCED SETTLEMENT OF COMPACTED-FILL EMBANKMENTS