Volume & Issue no: Volume 6, Issue 5, May 2017
_____________________________________________________________________________
Title: |
Heavy lead (Pb) mobility in compacted clay soils under landfill liners |
Author Name: |
Songül Akbulut, Muhammet Vefa Akpmar, Ugur Çevik
|
Abstract: |
Abstract
The movement of heavy metals and their concentration depth is an important aspect of landfill design. This paper presents the
results of laboratory measurements of lead (Pb) mobility in compacted clay soils of landfill liners. The contaminant transport
of the heavy lead metal through a compacted landfill barrier was modeled utilizing a 50 cm column leaching test. Test results
gave clear indication that the highest surface concentration lead was measured in the top 20 cm layer suggesting that the clay
liners should be constructed with at least 20-30 cm thickness with 98% compaction level. It is clear that as long as the porosity
are maintained very low by the use of modified proctor procedure it is possible to maintain the heavy lead on the top 20 cm
depth once the geomembrane layer fails. This study suggests that experimental sample height should be higher than 20 cm in
contrast to conventional 10 cm thick samples.
Keywords: Lead concentration, heavy metal, pollution, landfill, proctor compaction |
Cite this article: |
Songül Akbulut, Muhammet Vefa Akpmar, Ugur Çevik
, "
Heavy lead (Pb) mobility in compacted clay soils under landfill liners " , International Journal of Application or Innovation in Engineering & Management (IJAIEM) ,
Volume 6, Issue 5, May 2017 , pp.
065-071 , ISSN 2319 - 4847.
|
Full Text [PDF] Back to Current Issue  |
|
