Abstract
Dry sieving, wet sieving and photoscattering analyzer were tested as particle size analyzing methods for sediments from rivers and lakes of Han river, Nakdong river, Youngsan river, and Kumgang river area. Dry sieving showed a big error due to coagulating effect over drying process and this phenomena was severe for lake sediment. Wet sieving and PSA showed an accurate results though wet sieving needs more labor and complicate processes. Freeze-dry or freeze-dry after oxidation of organics with hydrogen peroxide showed improved results but gave lower portion of fine particles in comparing with wet sieving. Heavy metal contents and extractable metal contents were investigated for the sediments and high heavy metal content and extractable amount were obtained from fine particles as expected. Using of proper particle size analyzing method is important and the sediment management should be focused on the fine particles.
| Translated title of the contribution | Comparison of Particle Size Analysis and Distribution of Heavy Metals in River and Lake Sediments |
|---|---|
| Original language | Korean |
| Pages (from-to) | 15-23 |
| Number of pages | 9 |
| Journal | 한국지반환경공학회 논문집 |
| Volume | 11 |
| Issue number | 5 |
| State | Published - May 2010 |