Topic
Dredging
About: Dredging is a research topic. Over the lifetime, 3300 publications have been published within this topic receiving 28325 citations.
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TL;DR: In this paper, the authors evaluated 33 canals backfilled through July 1984 to assess the success of habitat restoration by examining canal depth, vegetation recolonization, and regraded spoil bank soils after backfilling.
Abstract: Returning canal spoil banks into canals, or backfilling, is used in Louisiana marshes to mitigate damage caused by dredging for oil and gas extraction. We evaluated 33 canals backfilled through July 1984 to assess the success of habitat restoration. We determined restoration success by examining canal depth, vegetation recolonization, and regraded spoil bank soils after backfilling. Restoration success depended on: marsh type, canal location, canal age, marsh soil characteristics, the presence or absence of a plug at the canal mouth, whether mitigation was on- or off-site, and dredge operator performance.
35 citations
TL;DR: Sediment dredging can be a useful technique for balancing the goals of habitat restoration and water quality improvements in wetlands restored on former agricultural lands by facilitating the deposition and burial of particulate P.
35 citations
TL;DR: In this paper, a study was made of the impacts on a benthic megafaunal community of a hydraulic blade dredge fishing for razor clams Ensis spp. within the Clyde Sea area.
35 citations
01 Jan 2012
35 citations
Patent•
20 Jun 1988
TL;DR: In this paper, a hand-held hand-operated, diver-operator controlled and diver-operated handheld dredge head is used to move about freely in the water bed being dredged, and provides for continuously dredging the mixture of water and solids from a first body of a water and pumping the mixture to a second solids collecting body of water.
Abstract: Dredging apparatus including a diver-operator controlled and hand-held dredge head which permits the diver to move about freely in the water bed being dredged, and provides for continuously dredging the mixture of water and solids from a first body of water and pumping the mixture to a second solids collecting body of water. Submersible, hydraulic dredge pumps are used in the bodies of water. The conveying water is continuously reused in a quasi-closed system by being returned to the immediate vicinity of the nozzle or alternatively being returned through a sleeve concentrically mounted around the nozzle. The returned water discharges downwardly to counterbalance the weight of the operator-held dredge. The second, solids collecting area may take the form of a truck body into which the solid material is dumped and the dredge water passes through into a filter tank from which it is pumped and returned to the dredge area for reuse in transporting additional solids. An improved diver-operated, hand-held dredge which includes a water return means that discharges downwardly in the area of the dredge nozzle so as to counterbalance the weight of the diver-operated hand-held dredge head.
35 citations