2009 Fiscal Year Final Research Report
Developing reliable methods for the design of the immobilization of heavy metals in soil : for the application to heterogeneous systems.
| Project/Area Number |
19310047
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental technology/Environmental materials
|
|---|
| Research Institution | Kanazawa University |
|---|
Principal Investigator |
KAWANISHI Takuya Kanazawa University, 自然システム学系, 准教授 (80234087)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SATO Tsutomu 北海道大学, 工学研究科, 准教授 (10313636)
SAITO Masahiko 神戸大学, 都市安全研究センター, 助教 (40283915)
FUKUSHI Keisuke 金沢大学, 環日本海域環境研究センター, 助教 (90444207)
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Keywords | 土壌汚染対策 / 不溶化 / 吸着 / 不均質性 / 土壌水流 |
|---|
| Research Abstract |
We summarized the effects of pH, coexisting substances, etc. on the adsorption of arsenic on the adsorbent, schwertmannite, with surface complex model. We found that in the heterogeneous water distribution, diffusive efflux of pollutants obeys power law with the exponent ranging from minus 1.0 to minus 0.5, whereas in regular systems the exponent is fixed to minus 0.5. In addition, we validated the effectiveness of barrier system for immobilization with laboratory experiments. We successfully constructed several sub-models for the design of immobilization in heterogeneous polluted sites.
|
