2010 Fiscal Year Final Research Report
Studies on effect of materials containing in groundwater for catalytic purification of groundwater polluted with nitrate and countermeasure development
| Project/Area Number |
20560717
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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 |
Catalyst/Resource chemical process
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| Research Institution | Hokkaido University |
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Principal Investigator |
KAMIYA Yuichi Hokkaido University, 大学院・地球環境科学研究院, 准教授 (10374638)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 地下水浄化 / 硝酸イオン / 水素化 / 水中共雑物 / パラジウム合金触媒 / フミン酸 / オゾン酸化 / 水中共存イオン |
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| Research Abstract |
Pollution of groundwater with nitrate caused by overfertilization is increasing problem in the world. Active carbon-supported Cu-Pd catalyst decomposed almost all nitrate into nitrogen gas by the hydrogenation in water. However, the Active carbon-supported Cu-Pd catalyst was remarkably deactivated by chlorine contained in groundwater for remediation of actual groundwater. In contrast, active carbon-supported Sn-Pd catalyst showed high catalytic performance even in the reaction solution containing chlorine and remediated the actual groundwater polluted with nitrate. The reaction system consisted of platinum-modified titanium oxide and Sn-Pd/Al_2O_3 promoted effectively photocatalytic reduction of nitrate in the actual groundwater.
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