Benefits of Dredging and Dredged Material Disposal
by Millie S. QUALITY WORK FOR A FAIR PRICE BY JIMMY TSANDIOTISThe process of dredging and dredged material disposal means
to removing the sediments from the bottom of a water body and disposing to a
separate location. This is done using technology and dredging machines. There are
basically two types of dredging processes – mechanical dredging and hydraulic
dredging. The purpose of port dredging can be divided into two
categories – maintenance and new work dredging.
Maintenance Dredging
Maintenance dredging is a periodic process of removing
sediments such as sand, rocks, and other contaminants from underwater channels,
berths, and moorings. Sediments are a combination of materials that naturally
collect and move from one place to another through wind, water, and wave
action. Maintenance dredging is needed to clear the channel and the harbor at
an accessible depth to enable safe passage for commercial, cruise, and naval
ships.
New Work Dredging
New work dredging is another popular dredging process in
navigation projects. It is required for the removal of sediments that have not
been previously dredged and carried on new channels that need to be deepened. In
this process, large sediments such as consolidated or cemented objects are
dredged. Cutterhead pipeline dredges are used because they are capable of
excavating heavy materials. This process is comparatively more strenuous and
requires higher forces to clean the bottom of channel than maintenance port dredging.
Benefits of Dredged Material Disposal
The main goal of disposing dredged material is to ensure is
disposed of in an environment-friendly manner. Every year in the US, millions
of cubic meters of unnecessary sediment are dredged from harbors, ports, and
waterways. It then disposed of in a separate place such as dredged material
containment facilities, open waters, landfills, and upland disposal grounds. Dredged material disposal
service providers can offer several solutions that can benefit harbor operators
and government entities. Here are some of the benefits of dredging:
·
Widening and deepening the way for smooth
passage of cargo vessels and cruise ships.
·
Dredging is required during underwater projects
such as bridge and underwater tunnel constructions.
·
Sediment removal can be very helpful large
land-building projects where raw sediments are needed. Beneficial reuse of
sediments can be done through processing and production.
·
Soil erosion can damage the shoreline or beachfront.
Dredging can help remove environmental restoration projects.
Dredging is done using an efficient dredge which helps
remove mud and sand from the bottom of the water body. This dredge is connected
with a submersible pump that relies on a vacuum to excavate the debris.
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Created on Feb 4th 2021 02:58. Viewed 162 times.