Dredging Impact On The Global Economy

Published in Mining World magazine, March 2015

Not many people understand the importance of dredges, the major role that they have played in the development of the world’s economic trade system, and the role that they continue to play in our global economy. However, dredges are used for a number of essential processes such as waterway navigation, aquaculture, environmental remediation, land restoration, land development, and many other applicationsincluding mining.

DREDGE CLASSIFICATIONS—HYDRAULIC OR MECHANICAL

Dredge Efficiency Dropping? It Could Need A Boost

Published in Rock Products magazine, September 2014

As a dredge moves farther away from the discharge point, the pump speed is increased to maintain a proper slurry velocity within the pipeline. Once maximum pump speed has been achieved, further increasing the discharge distance causes the cost-per-ton of material moved to rise, while production declines. Of course, there is always a cost involved in pumping the water/material slurry and the associated fuel or power required to do so. Because of this, the idea of adding a booster pump to the dredging operation in order to reduce costs may seem counterintuitive. 

Johnson Presents Dredge Operator Training At DSC Dredge

Published in International Dredging Review (IDR) magazine, November-December 2013

Over the past seven years, Charles Johnson has developed a dredge operator training course that explains the basic functions of each dredge type, production and maintenance goals, and most important, how to achieve these goals.

Dredging: What You Need To Know

Published in Pile Buck magazine, Vol. 29, No. 4, 2013

Dredging impacts our lives. Dredging is an excavation activity usually carried out underwater and out of sight. It nearly always involves gathering sediments from the bottom of a pond, lake, river or harbor and then disposing of these materials at a different site. While not particularly glamorous, dredging affects our everyday lives in ways we may not even realize. Dredges are used in a variety of applications that include marine construction, environmental remediation, aiding navigation, mining, aggregate processing, recreational improvement, beach and land restoration and even by municipalities.