2017 Fiscal Year Final Research Report
Development of a process for chalcogen recovery from semiconductor waste materials utilizing microbial activity
| Project/Area Number |
15K16145
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental conscious materials and recycle
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | semiconductor / selenium / tellurium / resource recycling / biovolatilization |
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| Outline of Final Research Achievements |
Along with the recent growth of demand for chalcogenide (selenide, telluride) semiconductors, which is used as solar cells, etc., establishment of resource recycling pathway for chalcogenide semconductors are becoming a pressing issue. In this project, a series of studies aiming the development of a chalcogen recycle process utilizing Pseudomonas stutzeri NT-I, an active chalcogen-metabolizing bacterium, was conducted. By applying neutralization and NT-I cultivation, successful recovery of selenium from simulated CIGS solar cell extract was achieved. Cultivation of strain NT-I in a bioreactor equipped with exhaust gas trap revealed that strain NT-I has highest tellurium volatilization activity among bacteria previously reported.
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| Free Research Field |
環境生物工学
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