土壌洗浄における液体サイクロン系統のモデル化 Modeling of Hydrocyclone Circuit on Particle Separation during Soil Washing

この論文にアクセスする

この論文をさがす

著者

    • 毛利 光男 MOURI Mitsuo
    • 清水建設株式会社エンジニアリング事業本部土壌環境本部 Soil Remediation Division, Engineering Headquarters, SHIMIZU Corporation
    • 田中 仁志 TANAKA Masashi
    • 清水建設株式会社エンジニアリング事業本部土壌環境本部 Soil Remediation Division, Engineering Headquarters, SHIMIZU Corporation

抄録

Grain-size distributions of both the underflow and overflow from the hydrocyclone circuit with hydrocyclones C1 and C3 are studied both in the full-scale plant and bench-scale plant. The separation performance of a hydrocyclone is expressed by a separation curve representing the probability of a particular particle ending up in either the underflow or the overflow. A particular configuration of a hydrocyclone circuit with C1 and C3 can benefit both separation performance and production of clean, good quality sand to minimize misplacement of fine particles between sand and sludge (fine fraction). After the first cycloning step, the separated flow with fine particles (C1 overflow) may still contain sand particles which increase an amount of residue. Cyclone C3 is included in the cycloning process to remove any sand fraction still present in the sludge. This can considerably reduce further the landfill cost.A mathematical model was developed to simulate the steady-state grain-size distribution of the C1 underflow (UFC1), which represents the clean sand, in the hydrocyclone circuit with C1 and C3. It was shown that the grain-size distribution of UFC1 is better described by the presented model, which helped determine an amount of clean sand and the cost of soil washing for contaminated soil. The concept and numerical formulas of the presented model are introduced and discussed.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment

    水環境学会誌 = Journal of Japan Society on Water Environment 27(8), 535-540, 2004-08-10

    公益社団法人 日本水環境学会

参考文献:  14件中 1-14件 を表示

被引用文献:  3件中 1-3件 を表示

各種コード

  • NII論文ID(NAID)
    10013435014
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    7063647
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ