Pollution pp 387-397 | Cite as

A Floating Settler for Low Cost Clarification

  • S. C. Reed
  • T. Buzzell
  • S. Buda
Chapter
Part of the Environmental Science Research book series (ESRH, volume 2)

Abstract

During recent years a very significant level of research activity has been concerned with improving clarification techniques. The basis for much of this work has been classical shallow-tray sedimentation theory. The advantages of this concept have been discussed in the literature for over 65 years. In 1904, Hazen suggested shallow basins with a depth approaching 1 in. (1). Since the vertical travel distance for a settling particle is so small in such a basin the retention time could be a few minutes rather than a few hours. Many attempts have been made to develop a practical technology for implementation of this theory. Two major problems impeded progress: the construction or fabrication cost for installing a large number of shallow trays in a basin, and development of an efficient technique for removal of settled sludge. In addition it was found that very wide shallow trays had insufficient lateral constraints and led to unstable hydraulic conditions. (2).

Keywords

Aeration Tank Circular Tube Mixed Liquor Overflow Rate Settle Sludge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Hazen, A., 1904, On Sedimentation, Transactions American Society of Civil Engineers, Vol. 53, p. 45.Google Scholar
  2. 2.
    Hansen, S. P., Culp, G. L. (1967), Applying Shallow Depth Sedimentation Theory, Journal American Water Works Association, Vol. 59, p. 1134.Google Scholar
  3. 3.
    Culp, G. L., Hansen, S., Richardson, G. (1968), High Rate Sedimentation in Water Treatment Works, Journal AWWA, Vol. 60, p. 681.Google Scholar
  4. 4.
    Yao, K. M. (1970), Theoretical Study of High Rate Sedimentation, Journal, Water Pollution Control Federation, Vol. 42, p. 218.Google Scholar

Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • S. C. Reed
    • 1
  • T. Buzzell
    • 1
  • S. Buda
    • 1
  1. 1.U. S. Army Cold Regions Research and Engineering LaboratoryHanoverUSA

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