کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
274495 | 505234 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Comparison of the equilibrium sorption of five organic compounds to HDPE, PP, and PVC geomembranes Comparison of the equilibrium sorption of five organic compounds to HDPE, PP, and PVC geomembranes](/preview/png/274495.png)
This experimental investigation quantified the sorption uptake of five commonly encountered organic groundwater contaminants, methyl tertiary-butyl-ether (MTBE), benzene, trichloroethylene (TCE), 1,2-dichorobenzene (1,2-DCB), and trinitrotoluene (TNT), to geomembranes made from high density polyethylene (HDPE), polypropylene (PP), and polyvinylchloride (PVC). The organic compounds were chosen to span a range of aqueous solubilities and chemical properties. The geomembranes tested in this study exhibited sorption capacities that were of similar magnitude for each of the contaminants tested, with the exception of 1,2-DCB to HDPE, which exhibited strong uptake in comparison to the other solute/sorbent combinations. In general, the PVC geomembrane demonstrated the highest sorption capacities, while the HDPE geomembrane demonstrated the lowest sorption capacities. Measured partitioning coefficients for the contaminant/geomembrane combinations ranged from Sgf<1 to 160, but most commonly had values between 10 and 75.
Journal: Geotextiles and Geomembranes - Volume 25, Issue 6, December 2007, Pages 360–365