2014 Volume 9 Issue 4 Pages 697-706
In order to standardize an upward style column examination, which is one of evaluation methods on leaching behavior of heavy metal from contaminated soil, nine different conditions examined in this study were based on an ISO/CEN standard and applied to the columns set up in three different organizations. Data on the accuracy of the column and shortening test time were collected. Results showed that maximum concentration rates, integrated elution accounts and shapes of breakthrough curve (BTC) of fluoride, arsenic, calcium, magnesium, sodium, and potassium, with higher concentrations and lower Kd, were obtained with high reproducibility under the same condition in different organization. Moreover, by packing the column with half of the sample, shape of BTC and integrated elution quantity were confirmed with high accuracy. This study also found that the samples under wet or air-dried states had little influence on the results.
