2010 Fiscal Year Final Research Report
Development of a novel system for the phosphorous removal and recovery using hydrotalcite like compounds
| Project/Area Number |
20560757
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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 |
Recycling engineering
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
SHIOMI Haruhisa Kyoto Institute of Technology, 工芸科学研究科, 准教授 (60215952)
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| Co-Investigator(Kenkyū-buntansha) |
SHIONO Takeshi 京都工芸繊維大学, 工芸科学研究科, 准教授 (30178850)
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| Project Period (FY) |
2008 – 2010
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| Keywords | ハイドロタルサイト / 水質浄化 / リン除去 / イオン交換 / ケイ酸カルシウム |
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| Research Abstract |
Commercial hydrotalcite calcined at 500℃ showed maximum phosphorous removal ratio. On the other hand, hydrotalcite vibro-milled for 6hrs under a dry condition showed maximum removal ratio of phosphorous on heating at 250℃. Consolidated bodies with high phosphorous removal and recovery efficiencies were obtained by carbonation of wet powder mixture of hydrotalcite and wollastonite at 80℃ for 3hrs under 0.4MPa CO_2 pressure followed by calcination at 500℃. These consolidated bodies showed enough durability against repeated phosphorous removal, ion exchange and heat treatment.
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