The Operation of a Continuous Thickener and Two-parallel Settling Tanks Using a Batch Settling Curve

DOI Open Access

Bibliographic Information

Other Title
  • 回分沈降曲線による連続シックナーと二そう並列沈殿池の運転

Description

The operation of the continuous thickener which was employed as a washing process for the recovery of useful chromite, was studied by use of a batch settling curve instead of a solid flux curve. The feed concentration, the feed rate and the amount of coagulating agent were fluctuated greatly during the actual operations. It was suggested that the suitable amount of coagulant was 0.2% of feed slurry from the analysis of twenty-four batch settling curves obtained over the period of a week.<br>In order to eliminate the inefficient use of a filter which is now employed for dewatering underflow sludge from the thickener, two-parallel settling tanks are proposed, and their operations are investigated by a batch settling curve. Since the complete solid flux curve can not be obtained in slurries with widely variable amounts of coagulant, the use of a batch settling curve may be advantageous to analyze the operation of the continuous thickener.

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Keywords

Details 詳細情報について

  • CRID
    1390001204512475776
  • NII Article ID
    130003951607
  • DOI
    10.4164/sptj.19.343
  • ISSN
    18837239
    03866157
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • Abstract License Flag
    Disallowed

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