Chemical compatibility study of geomembranes—sorption/desorption, diffusion and swelling phenomena
| Autor: | Tejraj M. Aminabhavi, H. G. Naik |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Arrhenius equation
Environmental Engineering Materials science Health Toxicology and Mutagenesis Diffusion Thermodynamics Sorption Polyethylene complex mixtures Pollution Linear low-density polyethylene chemistry.chemical_compound symbols.namesake chemistry Geomembrane Desorption Polymer chemistry symbols Environmental Chemistry High-density polyethylene Waste Management and Disposal |
| Zdroj: | Journal of Hazardous Materials. 60:175-203 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/s0304-3894(98)00090-9 |
| Popis: | Sorption/desorption results of n-alkanes into high density polyethylene, linear low density polyethylene, very low density polyethylene and polypropylene geomembranes are presented at 25, 50 and 70°C. Sorption results are obtained by a gravimetric method and diffusion coefficients have been calculated by using Fick's equation from the initial linear portions of the sorption/desorption curves. Swelling of the geomembranes was studied from a measurement of the increase in volume, thickness and diameter. From a temperature dependence of sorption and diffusion coefficients, the Arrhenius parameters have been calculated. Liquid concentration profiles have been computed using Fick's equation for the appropriate initial and boundary conditions. The results of this study may have relevance in selecting the suitable geomembrane for a specific application in hazardous waste chemical ponds and other similar situations. |
| Databáze: | OpenAIRE |
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