坑廃水処理における中和剤としてのMgOの適用性について Applicability of Magnesium Oxide as a Neutralizing Agent in Mine Water Disposal

この論文にアクセスする

この論文をさがす

著者

抄録

Applicability of magnesium oxide as a neutralizing agent in mine water disposal has been investigated using an artificial mine water containing ferrous iron of 1,000 mg dm-3 in terms of the reagent dosage and the reaction time. Ferrous ions were more effectively oxidized to ferric ions by aeration of the solution in the presence of magnesium oxide than by that in the presence of limestone. Aeration of the solution decreased the magnesium oxide dosage and the reaction time required for lowering the iron concentration to the acceptable value. Furthermore, recycling of the sludge showed the effects of reduction of the reagent dosage, shortening of the reaction time and densification of the sludge. Sludge recycle processes without and with aeration formed a sludge with the solid concentration of 0.155 and 0.373 g cm-3 by the addition of magnesium oxide of 1.25 and 1.5 equivalents for ferrous iron and sulfuric acid in the solution, respectively. In both processes, the reaction times were 30 minutes.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan  

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 114(8), 553-559, 1998-08-25 

    The Mining and Materials Processing Institute of Japan

参考文献:  6件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  5件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002467925
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    4555451
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ