2012 Fiscal Year Final Research Report
Development of low-cost environment-friendly immobilization technique of heavy metals in marine sediments with organic soils
| Project/Area Number |
22510095
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Center for Environmental Science in Saitama |
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Principal Investigator |
ISHIYAMA Takashi 埼玉県環境科学国際センター, 埼玉県環境科学国際センター土壌・地下水・地盤担当, 専門研究員 (80297621)
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| Co-Investigator(Kenkyū-buntansha) |
HACHINOHE Shoichi 埼玉県環境科学国際センター, 土壌・地下水・地盤担当, 専門研究員 (70415397)
KAWAMURA Kiyoshi 埼玉大学, 理工学研究科, 教授 (90109017)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 環境保全技術 / 土壌汚染 / 重金属類 / 不溶化技術 / 海成層 |
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| Research Abstract |
Marine sediments containing sulfide minerals (Fe2S) change to acidic soil gradually with a long-term atmospheric weathering and then various harmful heavy metals such as lead, cadmium and arsenic leach into environment. In this study, leaching characteristics of heavy metals from weathered marine sediments was investigated and low-cost environment-friendly immobilization technique of heavy metals with natural material was developed. By the application of this technique, leachabilities of various heavy metals from marine sediments decreased greatly. From the results of long-term stability test, heavy metals were immobilized in the marine sediment for a long time without anthropogenic impacts.
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