Dewatering bin carryover study

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Courtesy of Entech Design, Inc.

Bottom ash dewatering bins (hydro-bins) at coal fuel utility plants allow ash material to carry over to ash settling ponds, or in the case of closed loop systems, re-circulate suspended ash solids, resulting in the following problems:
  • Frequent and expensive dredging of settling ponds
  • Excessive wear on system components caused by re-circulating suspended
    solids
  • Labor intensive manual sounding of bins to determine ash levels
  • Chemical treatment of water discharged to lakes or rivers
  • Clean-up associated with overfilling of bins

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