書誌事項
- タイトル別名
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- Serial Batch Elution of Electric Arc Furnace Oxidizing Slag Discharged from Normal Steelmaking Process into Fresh Water
- フツウ コウ セイレン プロセス カラ ハイシュツ サレタ デンキロ サンカ スラグ ノ タンスイ エ ノ クリカエシ ヨウシュツ シケン
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抄録
The serial batch leaching test of an electronic arc furnace oxidizing slag was performed on the basis of JIS K 0058-1 to investigate the safety of the slag and to clarify the elution mechanism. The slag which was discharged at the time of refining of normal steel was used for this experiment. The slag was dissolved in water whose initial pH was 6.0. After that, the slag was naturally dried. This operation was performed 12 times successively.<br>The dissolution behaviors of Ca and Mg were expressed by the parabolic law. That of Si was expressed by the linear law. The dissolutions of them from the slag were controlled by the diffusion through pore and the surface layer through the surface layer where compositions of FeO and Al2O3 were high. Generally, the dissolve concentrations decreased with the increase in the number of the elution times. The environmentally regulated substances were not detected or less than the levels of the environmental quality standards for soil. Ba, Mn, Mo, K, Na, Sr and W were detected as minor element except for the environmentally regulated elements. Generally, the detected environmentally regulated substances and the other minor elements decreased with the number of the elution times. During the elution of the slag, the pH of the aqueous solution steeply increased initially, and it decreased afterwards. The pH decreased with the increase in the number of the elution times.
収録刊行物
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- 鉄と鋼
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鉄と鋼 96 (12), 698-705, 2010
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680102700416
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- NII論文ID
- 130000450220
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- NII書誌ID
- AN10528571
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- ISSN
- 1341688X
- 18832954
- 00211575
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- COI
- 1:CAS:528:DC%2BC3cXhsFKqtrzN
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- NDL書誌ID
- 10925463
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
