![\"Diagram](\"https:\/\/www.vanderbilt.edu\/leaching\/wp-content\/uploads\/2010\/12\/ColScheme.png\" "\\"ColScheme\\"")
<\/a>This test is designed to provide the liquid-solid partitioning of constituents in a granular solid material as a function of liquid-to-solid ratio (L\/S), based on elution volume, under percolation conditions. Granular material is moderately packed into a cylindrical glass column and is contacted by leaching solution at a low flowrate. Solution is introduced in an up-flow pumping mode to minimize air entrainment and flow channeling. Eluate concentrations and cumulative mass releases of constituents of potential concern are plotted as a function of cumulative L\/S. Eluate concentrations may be compared to quality control and assessment limits for interpretation of method results.<\/p>\n
Detailed Description:<\/strong><\/p>\n Method 1314 is a percolation column test designed to obtain liquid-solid partitioning (LSP) information as a function of liquid-solid ratio (L\/S). L\/S is represented as the cumulative volume of leaching solution passing through a column containing a known mass of material. For some materials, particle size reduction may be required to meet column dimension requirements and facilitate the approach to equilibrium.<\/p>\n Solid material is loosely packed into a borosilicate glass column and contacted with a percolating leaching solution at low flowrate. Liquid is pumped in an up-flow direction to minimize channel and air entrapment. Eluates are collected at specific cumulative L\/S values between L\/S 0.2 and 10 mL\/g-dry. Eluate concentrations and constituent cumulative release plotted as a function of L\/S.<\/p>\n The results of Method 1314 provide an estimate of porewater concentrations at low L\/S and illustrate how LSP changes as soluble constituents are released during succesive pore volumes.<\/p>\n Downloads:<\/strong><\/p>\n Overview Presentation of Method 1314<\/p>\n<\/a>