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MgCl2 を用いた飛灰中の鉛不溶化に関する研究
https://doi.org/10.34481/0002000809
https://doi.org/10.34481/0002000809d1f8beb7-f4ee-4957-ad2f-8a7ec3ad13e9
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (1.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-10-23 | |||||
| タイトル | ||||||
| タイトル | MgCl2 を用いた飛灰中の鉛不溶化に関する研究 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Insolubilization of Lead in Incineration Fly Ash Using Magnesium Chloride | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Lead | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Fly ash | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Magnesium | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Stabilization | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.34481/0002000809 | |||||
| ID登録タイプ | JaLC | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 著者 |
土手, 裕
× 土手, 裕× 関戸, 知雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The purpose of this study was to clarify the leaching behavior and chemical form of lead in incinerated fly ash that was insolubilized with magnesium chloride, and to evaluate the difference in suppression of leaching from fly ash treated with magnesium chloride or existing insolubilizers, chelate and cement. For this purpose, sequential extraction tests were performed on the fly ash treated with magnesium chloride. In addition, pH-dependent tests were conducted on fly ash treated with magnesium chloride or existing insolubilizers. The leaching concentration of lead was decreased with the addition of magnesium. The leaching concentration of lead from fly ash treated with a magnesium addition rate of 1.0 mol/kg or more could meet the Japanese landfill standard of lead. The pH of leachate was decreased with the addition of magnesium. The reason for this decrease of pH could be that hydroxide ion was consumed by the reaction of magnesium ion with hydroxide ion to form magnesium hydroxide precipitate. Chlorine in magnesium chloride did not affect the insolubilization of lead in fly ash by the addition of magnesium chloride. The suppressive effect of magnesium treatment on lead leaching in case of decrease in pH was similar to that of chelate treatment, but inferior to that of cement treatment. It would be said that the mechanism of insolubilization of lead in fly ash treated with magnesium chloride was carbonation of lead in the curing and drying steps, in addition to the decrease of lead solubility due to decrease in pH by the addition of magnesium. | |||||
| 言語 | en | |||||
| bibliographic_information |
ja : 宮崎大学工学部紀要 en : Memoirs of Faculty of Engineering, University of Miyazaki 巻 53, p. 1-8, 発行日 2024-10-23 |
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| 出版者 | ||||||
| 出版者 | 宮崎大学工学部 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Faculty of Engineering, University of Miyazaki | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 05404924 | |||||
| item_10002_source_id_11 | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00732558 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
