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3.
Two illustrations of a type of environmental dredge, with 'Cutterhead'
attachment.
(Please Note: For contaminated sediments, the 'cutterhead'
attachment pictured in the two illustrations below would be of a different
type and design so as to limit dispersion of PCB-contaminated particles.)
Source: Keene Engineering
Unit shown: Nessie, Model 8DX
Source: Keene Engineering
Unit shown: Nessie, Model 8DX
Editor's Note: Many thanks to Scenic
Hudson, Inc., Hudson
River Sloop Clearwater, Inc., and Keene
Engineering, Inc. for supplying the various diagrams, illustrations
and photographs shown on these pages.
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