| Project/Area Number |
16K14462
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Kyushu University |
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Principal Investigator |
GOTO MASAHIRO 九州大学, 工学研究院, 教授 (10211921)
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| Research Collaborator |
KUBOTA FUKIKO 九州大学, 工学研究院, 助教
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | レアメタル / 希土類 / リサイクル / バイオソープション / イオン交換 / 吸着樹脂 / バイオ吸着 / 金属分離 / 吸着剤 / メタルリサイクル / 都市鉱山 / 希土類分離 / 金ナノ粒子 / 生物吸着 / 分離工学 / 細胞吸着 / 大腸菌 / 分子認識 |
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| Outline of Final Research Achievements |
Biosorption has recently attracted much attention as an alternative to conventional techniques for the recovery of rare earth elements (REEs). In this study, the surface of Escherichia coli (E. coli) was chemically modified to improve its performance as a biosorbent for REEs. The diglycolic amic acid group, which shows high affinity to REEs, was introduced by succinylation of the amine groups on the surface of the E. coli. Adsorption curves using the chemically modified E. coli were characteristic of the diglycolic amic acid group. The adsorption performance for transition metal ions was not affected by the chemical modification. These results suggest that modification of E. coli with a functional group with high affinity to REEs increases the effectiveness of adsorption. The maximum uptakes of REEs on the modified E. coli were increased to double. Chemical modification of E. coli is an effective method for enhancing the adsorption performance for REEs.
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