書誌事項
- タイトル別名
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- Reforming of Sludge Produced by Ferrite Process Treatment of Wastewater Containing Heavy Metal Ions and Phosphate.
- リンサン キョウゾンカ ニ オケル ジュウキンゾク ガンユウ ハイエキ ノ フ
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抄録
The saturated magnetization (σ) of the ferrite sludge formed by two-step treatment of wastewater containing heavy metal (cadmium sulfate) and potassium dihydrogen phosphate was measured over a wide concentration range of potassium dihydrogen phosphate. Simultaneously, the concentration of cadmium and iron ions in treated water was measured. From the results of measurement, the effect of the two-step treatment on the above parameters was quantitatively discussed by comparing the three different process treatment : conventional, excess-iron and two-step treatments.<br>The σ value of ferrite sludge formed by the two-step treatment was larger than that by conventional treatment in phosphate ion concentration above 330 mg·l-1. The ferrite sludge formed by conventional treatment was reformed to the sludge from which cadmium ion was not easily eluted by the ferrite coating effect of two-step treatment. The pre-treatment by sodium hydroxide was effective in removing phosphate ion and increasing the σ of ferrite sludge. The concentration of cadmium ions in treated water produced by ferrite process was lower than that in treated water produced by neutralization method. The two-step treatment is favorable for steady operation of the ferrite process, industrial utilization of the sludge and good quality of the treated water.
収録刊行物
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- 水環境学会誌
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水環境学会誌 21 (10), 690-695, 1998
公益社団法人 日本水環境学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205082520704
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- NII論文ID
- 10007469850
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- NII書誌ID
- AN10372439
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- COI
- 1:CAS:528:DyaK1cXns1aqt78%3D
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- ISSN
- 18813690
- 09168958
- http://id.crossref.org/issn/09168958
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- NDL書誌ID
- 4582703
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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
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- 抄録ライセンスフラグ
- 使用不可