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Mass Transfer of Organic Compounds in Dilute Aqueous Solutions into High Density Polyethylene Geomembranes

Cited 35 time in Web of Science Cited 43 time in Scopus
Authors
Joo, Jin Chul; Kim, Jae Young; Nam, Kyoungphile
Issue Date
2004-02
Publisher
American Society of Civil Engineers (ASCE)
Citation
J. Environ. Eng., 130, 175-183
Keywords
Mass transferOrganic compoundsPolythyleneGeomembranesLandfills
Abstract
The mass transfer of ten organic compounds into high density polyethylene (HDPE) geomembranes is investigated using
batch immersion tests with dilute aqueous organic compound solutions. For the concentration ranges tested, the linear model is suitable
to explain the sorption of organic compounds. The HDPE-water (HDPE-W) partition coefficients of the organic compounds (KHDPE-W)have a good logarithmic linear relationship with their octanol-water partition coefficients and water solubility. The diffusion coefficients(D) of all organic compounds tested are on the order of 1029 cm2/s and decrease with the increase in their molecular diameters. The effects of the presence of other organic compounds, pH, ionic strength, temperature, and five-year aging of HDPE geomembranes on
sorption are evaluated. All factors except the temperature are insignificant. As temperature increase, KHDPE-W values are not affected significantly, but D values increase. A mathematical model, together with the experimentally determined mass transfer parameters, is used to predict the mass flux of organic compounds through HDPE geomembranes.
ISSN
0733-9372
Language
English
URI
http://hdl.handle.net/10371/8699
DOI
https://doi.org/10.1061/(ASCE)0733-9372(2004)130:2(175)
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Civil & Environmental Engineering (건설환경공학부)Journal Papers (저널논문_건설환경공학부)
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