| Contents Notes |
"In order to better understand the potential effectiveness of permeable treatment systems, four readily available, low-cost permeable materials - limestone, coal, fly ash, and a soil containing clay - were bench-tested to determine their ability to remove organic pollutants from two simulated hazardous waste leachates.The capabilities of various sequentially ordered layers of these materials were evaluated with respect to their ability to retain total organic carbon (TOC) and twelve selected priority pollutants. As a result of testing, the most effective ordering of materials was found to be a layer of fly ash, followed by a layer of coal, followed by a layer of limestone. Conceptual designs for three field-scale permeable treatment systems were developed using the results of the bench-scale experiments." |
