Cleanup Dredges - Thin Layer Removal of Contaminated Sediments

Category:

Contaminated Sediment Handling

Dredge Plant

Ketelmeer project involves removal of up to 20 million m3 of polluted silt from a 350-hectare

Description:

lake. Pollutuion is Class 4 (highest rating in Holland), including heavy metals, PAC, PCB, etc.

Project includes removal of polluted silt, 20- to 40-cm thick, and capping with 0.5 m of clean

sand. Special heads (scoophead, sweephead) were used to provide accuracy, minimum spillage,

and low turbidity.

Reviewer:

C. Woolley

Company / Organization(s):

Projects Completed:

Ketelmeer

Location:

Holland

Completion Date:

Longterm - compl 1/4 21 Century

Comments:

1. Dredged sediment will be treated; therefore low water entrainment is

important. Project photo on back cover. More info - World Dredging

1997, p 10.

2. Numerous descriptive brochures are available.

Information Sources:

Literature:

Month:

August

Year:

1996

LitType:

Periodical

Publisher:

World Dredging Mining & Construction

Publisher Address:

PO Box 17479 Irvine, California 92623

Publisher Phone:

714 553-0836

Page:

This project was also reported in Sea Technology, March 1998.

Notes:

Chapter 5 Other Technologies Reviewed