Diffusion through Pulverized Stone Compared to Other Mineral Barrier Materials
<div>Construction of a waste disposal site requires an effective barrier</div><div>that separates waste from a sub-base and minimizes the migration</div><div>of contaminants from the site to an aquifer. Barrier layers most</div><div>often used are natural cl...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Croatian Geological Survey
2004-06-01
|
| Series: | Geologia Croatica |
| Subjects: | |
| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/217 |
| Summary: | <div>Construction of a waste disposal site requires an effective barrier</div><div>that separates waste from a sub-base and minimizes the migration</div><div>of contaminants from the site to an aquifer. Barrier layers most</div><div>often used are natural clayey deposits or compacted clay liners and</div><div>PEHD geomembranes. However, some regions, the Croatian karst</div><div>for example, are mostly short of clay. For this reason, the use of</div><div>pulverized stone, the by-product in the building-stone industry – as a</div><div>potential liner material was investigated. Considering diffusion is an</div><div>important mechanism of contaminant transport through barriers, this</div><div>paper describes the method and apparatus for determining the diffusion</div><div>coefficient of pulverized stone. Measured diffusion values were</div><div>related to sample compaction and compared with the physical properties</div><div>of clay, geosynthetic clay liners and PEHD geomembranes. Other</div><div>physical properties of pulverized stone such as the filtration coefficient,</div><div>density and particle size distribution are also presented. Finally,</div><div>the suitability of pulverized stone for barrier construction is discussed</div><div>based on the results obtained.</div> |
|---|---|
| ISSN: | 1330-030X 1333-4875 |