Abstract
In recent years, the effective utilization of excavated soils and rocks has gained importance. A proposed method for reusing soils containing heavy metals is to underlay geosynthetic materials with adsorption capacity beneath the excavated materials. This study evaluated the adsorption performance of arsenic and lead using batch tests and column tests on non-woven modified geotextile. Factors such as contact time, hydration reaction, compaction effects, and overburden pressure were found to significantly influence the adsorption performance. Comparing with the batch test results with column test results, it can be found that the conventional batch sorption test has a risk of overestimating the adsorption performance.