Available Technology

Device for removing sludge from the bottom of a lagoon

A system removes a pre-specified amount of material from a body of water to facilitate continued operation thereof. A particular embodiment envisions a sled-like device that, assisted with floats, suitable connectors and a hand winch may be positioned anywhere in the body of water. In operation, it is pulled along the bottom of the body of water at a pre-specified rate via a cable and winch affixed to a ground-anchored cable located on shore. The device is symmetric so that it may be pulled in either direction. At each end of the device is a scoop arranged to dislodge material on the bottom and transfer it to a central pump chamber from which an onboard submersible pump transfers it via a hose to a remote repository for further disposition. The system is compact and simple, both in design and operation, facilitating use and maintenance by existing operations personnel.
Inventors: 

James Mertel, Jr.,

Dennis J. Lambert

Patent Number: 
US6584709
Patent Issue Date: 
August 1, 2003
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