The diagram provides information about the method by which a dredger clears mud from canal floors. While the table highlights the key differences between a canal dredger and a coastal dredger in terms of their specifications.
Overall, this new technology is quite useful and helpful for quiet and efficient cleaning Venice’s canals. The canal dredger is compact and typically used in shallow city canals and lagoons, whereas the coastal dredger is large and works in ocean waters.
To begin with, the process starts when hydraulic arms lower a centrifugal pump to the canal bed. Rotating blades loosen mud from the bottom, and the suction pump draws the mixture upward through a large tube. Finally, a shuttle boat carries the collected mud away from the city for disposal.
According to the table, the canal dredger is 22-meter hull length and 6.69-meter breadth, while an 85-meter length and 14-meter breadth measure the coastal dredger. The depth of operation is shallow, at 1.87 meters, low enough for canals and lagoons. The coastal dredger has a working depth of 35 meters, suitable for deep waters, for instance, the North Sea.