Pond dredging is the activity of collecting sediments at the floor of ponds and disposing them off. Sediment disposal has to be done considerably far from the pool to prevent them from finding a way back in. This activity is carried out at least partially under submerged conditions as the entire water body cannot be drained wholly. This process has numerous benefits to animals and people and the environment.
The first significance of this procedure is to make the water body navigable. Dredging eliminates materials that buildup at the base of the water mass hence deepening it. Water vessels can move and dock with minimum trouble on deep coasts. As the sediments are eliminated, the carrying capacity of the ecology is increased. More plants and animals can now occupy the pond once the procedure is done.
This process can also be used as a fishing technique for certain strains of seafood. Dredgers are hauled through the waters to capture the organisms as they also collect sediments. Ponds that are threatened of being sealed due to siltation are also opened by this operation. This is actually the main reason for this activity in most cases.
Sediments from water are also helpful for creation of land on the surface of the earth. The materials are transported and deposited on parcels of land that require to be recovered. In most cases, this is achieved by cutter or trailing suction dredge. Sediments may also be utilized to control flooding or soil erosion. Beaches that are greatly eroded can also be reinstated by use of this operation.
Minerals at the bed of ponds are harvested through dredging. The bed is excavated using special machines to get to the minerals. Precious materials like gold, diamond, phosphate, and soda among others that are found in the sediments on the bed are also extracted using dredgers. Elegant construction materials also originate from the seabed. Another major reason to dredge a pond is to reclaim it from chemical contamination. Chemical contaminants normally settle at the bottom and continue polluting the waters. They can only be completely removed using a dredger.
There are many kinds of vessels applied for dredging. They consist of auger, trailing, and cutter suction, clamshell, water-lift, backhoe, air-lift, pneumatic, water injection, krabbelaar, submersible, bed leveler, and snap goat among several others. Suction models suck deposits into long tubes in a similar fashion as vacuum cleaners. The only distinction is that they work on a bigger extent. Trailing suction work by dragging pipes on the bottom of the water and materials get loaded into hoppers.
Cutter suction dredgers have a cutting mechanism at the inlet of the suctions. The cutter disintegrates sediments and gets them fed into the mouth suction. Centrifugal pumps built of wear resistant metals suck the loosened sediment materials and discharges them through the tube lines. Auger suction dredgers have cutting mechanisms made perpendicular to the suction pipes. Cutters revolve at a great speed.
Pond dredging is time consuming and involving but necessary. It ought to be carried out after a set time interval. Its cost depends on the area and the terrain within the place.
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Author: Shanna McNeilThis author has published 20 articles so far.