![]() These environmental impacts can significantly hurt marine wildlife populations, contaminate sources of drinking water and interrupt economic activities such as fishing. Dredging systems can either be shore-based, brought to a location based on barges, or built into purpose built vessels.ĭredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Dredges have been classified as suction or mechanical. ![]() as the food-to-sediment-ratio is decreased, meaning more energy is required to sort. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.ĭredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Concern about the impact dredging has on marine life, including ma. production of food, fiber, and forest products (See Section 323.4 for the definition. To cut meat and poultry into large pieces at the joints using a very sharp knife. The crew used a dredge to clear the riverbed and improve the water flow. (machinery for clearing riverbed) draga nf. Possible reasons for dredging include improving existing water features reshaping land and water features to alter drainage, navigability, and commercial use constructing dams, dikes, and other controls for streams and shorelines and recovering valuable mineral deposits or marine life having commercial value. (c) The term dredged material means material that is excavated or. Cubre los trozos de pollo con harina y condiméntalos con sal y pimienta. Wikipedia Rate this definition: 0.0 / 0 votesĭredging is the excavation of material from a water environment. Any of various machines equipped with scooping or suction devices and used to deepen harbors and waterways and in underwater mining.
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