| 研究課題/領域番号 |
18K11697
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| 研究機関 | 九州大学 |
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研究代表者 |
サファルザデ アミルホマユン 九州大学, 工学研究院, 特任准教授 (00727381)
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| 研究分担者 |
島岡 隆行 九州大学, 工学研究院, 教授 (80202109)
中山 裕文 九州大学, 工学研究院, 准教授 (60325511)
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| 研究期間 (年度) |
2018-04-01 – 2021-03-31
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| キーワード | Municipal Solid Waste / Incineration Fly Ash / Fish bone / Hydroxyapatite / Metal stabilization / Rice Husk Ash / Zeolite / Chelate |
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| 研究実績の概要 |
1- A comprehensive characterization of MSWI fly ash from another three incineration plants in Japan was conducted (chemical, mineralogical, leaching behavior etc.), 2- Several fish bone species and their hydroxyapatite contents were characterized in detail, 3- New sets of batch experiments and column experiments under different analytical conditions were conducted to evaluate the effects of fishbone species on the leachability of heavy metals in fly ash material, 4- Simulated leachates were produced by leaching of heavy metals from fly ash and stabilizing them using fish bone hydroxyapatite, 5- Heavy metals were successfully stabilized in fly ash in excess of 85% for Pb and Zn, 6- Cascaded use of three stabilizing agents (zeolite, fishbone, and rice husk ash) was performed. The results were also compared with chelate stabilization technique, 7- The achievements were presented in two international conferences in Beijing, China (CJJC 2019) and Sousse, Tunisia (EMCEI 2019), which received best paper awards, 8- A manuscript has been submitted to the journal of Waste Management in January 2020 (under review). Preparation of two more manuscripts are in progress and they will be submitted by July 2020.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Several new strategies have been adopted to improve the capacity of fish bone hydroxyapatite. Additional experiments have been designed and some are underway to assess and enhance heavy metal stabilization in the incineration fly ash material. The results of the new tests have been satisfactory and new opinions have been emerged for amending fish bone hydroxyapatite. However, due to the occurrence of COVID-19 pandemic disease across Japan, all the students and technical staff have been ordered to minimize their presence in the lab. Therefore, most of the experiments have been temporarily halted due to this unforeseen situation. Overall, the other conditions are fairly good and we have not experienced serious issues from the technical, scientific, or budget standpoints.
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| 今後の研究の推進方策 |
After obtaining successful achievements so far, we have opted for new policies to enhance the quality and capacity of fish bone hydroxyapatite. As a result: 1- additional untreated fly ash substances were collected from three incinerators located in three different cities in Japan, 2- Additional fish bone was also collected and processed for further improvement, 3-Modification of the surface of waste fish bones with a number of environmentally sound materials such as zeolite and rice husk ash, 4- Several additional batch experiments have been designed in order to improve the stabilization process, 5- Column experiments have also been redesigned in order to simulate the efficiency of heavy metal stabilization in fly ash after being disposed of in a landfill site, 6- We have reached an agreement with a local company to share our technology with emphasis on the possibility of industrial applications. 7- If not affected by COVID-19, we will participate in two international conferences by the end of the current fiscal year, 8- It is planned to submit new achievements to high standard international journals (at least two articles).
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| 次年度使用額が生じた理由 |
1- Collection of treated and untreated fly ash substances from new sources, 2- Collection of additional fish bone material during spring and summer, 3- Conducting additional experiments for surface functionalization of waste fish bones with a number of amending materials such as zeolite and rice husk ash, 4- Carrying out supplemental batch and column experiments for improving the stabilization process, 5- Setting up column experiments in order to simulate the efficiency of heavy metal stabilization in fly ash after landfill disposal, 6- Conducting several experimental analysis inside and outside of Kyushu University, 7- Attending two international conferences in Japan and Turkey if not affected by COVID-19 pandemic.
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