EFFECT OF TEMPERATURE ON BTEX PERMEATION THROUGH HDPE AND FLUORINATED HDPE GEOMEMBRANES

SOILS AND FOUNDATIONS

TOSHIFUMI MUKUNOKI¹  R. KERRY ROWE²  HEATHER LINDSAY³ 

[1] X-Earth Center, Department of Civil and Environmental Engineering, Graduate School of Science and Technology, Kumamoto University;GeoEngineering Centre at Queen's-RMC, Queen's University;AMEC Earth and Environmental

关键词: BTEX;    diffusion;    fluorination;    geomembrane;    hydrocarbons;    partitioning;    permeation;    (IGC: M9);   

DOI  :  10.3208/sandf.51.1103

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(26)The diffusion characteristics of high density polyethylene (HDPE) geomembranes with respect to hydrocarbons are investigated at temperatures of 22±1°C and 6±1°C. Results are reported for an aqueous solution of benzene, toluene, ethylbenzene, and xylene (BTEX). The partitioning coefficient obtained from sorption/immersion test is shown to be effectively the same as that from desorption test. Both conventional untreated (HDPE) and fluorinated (f-HDPE) geomembranes are examined and it is shown that a fluorinated layer on the surface of an HDPE geomembrane increases its resistance to the permeation of BTEX penetrants by about a factor of 2.4 at 22°C and 1.8 at 6°C. An Arrhenius relationship is developed that could be used for estimating hydrocarbon permeation at different temperatures between 6°C and 22°C for both the HDPE and f-HDPE geomembranes examined.

【 授权许可】

Unknown