A STANDARD COLUMN WEATHERING TEST TO ESTIMATE COAL OVERBURDEN LEACHATE QUALITY

摘要

Five rock samples of coal overburden materials were subjected to a standardized column leaching test at eight commercial, university and government laboratories. At each lab, splits from sized, homogenized bulk samples were loaded in duplicate columns, incubated under humid air containing 10% CO_2, and leached every 7 days for a 14 week period.