What are the different ways of dredge spoil disposal?

The marine industry is apparently always at risk of getting stuck due to a large shove in sedimentation. There are many communities that focus on preserving the marine environment and preventing pollution in the waterways. Dredging is a process in which materials are excavated from water bodies using large machinery and equipment. Dredge spoil is combination of sediments that include soil, rock, and metals. These materials are extracted and deposited using different methods. It is helpful to know what are the methods used for dredge spoil disposal.

There are many companies that offer dredging services and simultaneously handle sediment reuse and management. Port operators and companies that deal in shipping may need the services of dredging experts mostly because they need them multiple times every year.

Dredge spoil disposal is carried out in various ways. Areas such as beaches, lakes, and commercial fishing areas frequently need dredging activities and there need arise for disposal at minimum costs.

Open water disposal

A large chunk of muddy sediments are extracted from harbors and estuaries and then it is released at a nearby site. This is usually done on water surfaces that often attract high-velocity sea waves. Dredged sites have seen several problems after the process that includes a decrease in macrofaunal abundance and variations in the composition of marine species. In many states, there is a complete ban on open water dredge spoil disposal which is in the nation's best interest to an extent.

Land disposal

Land disposal isn't a very common way to discard dredged material. These large sites can be used for other development projects or wildlife habitat. However, dredging projects are increasingly resulting in more landfills. Large volume of contaminated sediments can greatly impact the environment. Dry solids, plastic, and dredge slurries are real danger for marine pollution. Sediment reuse is the best choice in order to keep the environment clean and also for subsequent utilization.

Deepwater disposal

Spoil disposal in deepwater is more viable alternative disposal technique but should first be the point of research to conclude basic questions regarding biologic effects of contaminants in largely undiscovered environment. As an outcome of the concern over open water disposal of dredged material, there will certainly be more land disposal of dredged spoil in the coming years.

Both removal and disposal of dredged sediments is important. However, both the process can be detrimental for the marine environment. Management of dredge spoil disposal in a way that prevents pollution is essential. Marine and estuary disposal sites can be monitored by regulatory agencies to avoid any illegal activities.