| Project/Area Number |
23560646
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Saga University |
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Principal Investigator |
ARAKI Hiroyuki 佐賀大学, 低平地沿岸海域研究センター, 教授 (70117315)
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| Co-Investigator(Kenkyū-buntansha) |
三島 悠一郎 佐賀大学, 工学系研究科, 講師 (90612664)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | リン回収 / ハイドロタルサイト / ナノサイズ無機層状複水酸化物 / ゼオライト / 吸着 / 脱着 / NLDH / HT/Zeリン回収法 / 再生 |
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| Research Abstract |
The purpose of this study is to develop HT/Ze phosphorus recovery system, which uses hydrotalcite and zeolite. Experimental examination of the system was conducted through adsorption test, desorption test of HT and Ze by single desorbing solution, phosphorus recovery test from desorbing solution and practical application to wastewater treatment plants.
Characteristics of phosphate and ammonium adsorption by Nano-size Layered Double Hydroxide (NLDH) and Grass powder Zeolite (GZe) were revealed by adsorption test. It was also found that NLDH and GZe are desorbed at the same time by single desorbing solution. Moreover, 90% of adsorbed phosphorus by NLDH can be desorbed into desorbing solution, and totally 81% of phosphorus can be recovered as the crystallized phosphorus. From practical application test, HT/Ze is proved to recover phosphorus from actual wastewater.
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