CASE STUDIES ON THE USE OF ENVIRONMENTAL CLAMSHELL BUCKETS FOR REMEDIATION OF CONTAMINATED SEDIMENTS - PowerPoint PPT Presentation

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CASE STUDIES ON THE USE OF ENVIRONMENTAL CLAMSHELL BUCKETS FOR REMEDIATION OF CONTAMINATED SEDIMENTS

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CASE STUDIES ON THE USE OF ENVIRONMENTAL CLAMSHELL BUCKETS FOR REMEDIATION OF CONTAMINATED SEDIMENTS Application of Environmental Dredging Tips Lessons learned from ... – PowerPoint PPT presentation

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Title: CASE STUDIES ON THE USE OF ENVIRONMENTAL CLAMSHELL BUCKETS FOR REMEDIATION OF CONTAMINATED SEDIMENTS


1
CASE STUDIES ON THE USE OF ENVIRONMENTAL
CLAMSHELL BUCKETS FOR REMEDIATION OF CONTAMINATED
SEDIMENTS
Application of Environmental Dredging
Tips Lessons learned from more than 10 years of
completing dredging projects with environmental
clamshell buckets
Presented by Darrell Nicholas, P. E. Cable Arm
Professional Services
2
Clamshell Advantages
  • Rapid mobilization with usually lower costs
  • Equipment and labor readily available in most
    markets
  • Handles deep water greater than 40 feet
  • Some rock and debris handling capability
  • Much lower water treatment costs

Clamshell Disadvantages
  • Lower production rates usually vs. cutterhead
  • Need for onshore unloading/transfer facilities,
    trucks
  • Loss of volatile organic compounds from open
    barges
  • Need for secondary spill containment at transfer
    points

Cable Arm, Inc. June 2005
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