Data sets of experimental study on retardation of a heavy NAPL vapor in partially saturated porous media

Large-scale column experiments were performed to quantify partitioning processes responsible for the retardation of carbon disulfide (CS2) vapor in partially saturated porous media. For experiments 1-16, fine glass beads (soda-lime glass, Sigmund Lindner, Warmensteinach, Germany) were used as medium; for experiments 17-37, Geba fine sand (Quarzsande GmbH, Eferding, Austria) was used. The experiments were conducted in large, vertical columns (i.d. = 0.109 m) of 2 m length packed with different porous media. A slug of CS2 vapor and the conservative tracer argon was injected at the bottom of the column followed by a nitrogen chase. Concentrations of CS2 and argon were measured at the top outlet of the column using two gas chromatographs (GC). The temporal-moment analysis (TMA) for step input was employed to evaluate concentration breakthrough curves and to calculate seepage velocity (v), dispersion (D) and retardation (R). The data sets contain for each experiment the raw data of the GC measurements of both CS2 and argon, temperature, pressure, and tensiometer recordings as well as the results of the TMA.