Survey and containment of contaminated underwater sediments
The underwater sediments of the waterways, lakes and harbours of the Netherlands are sufficiently contaminated in many areas to necessitate their removal or isolation. The degree and nature of contamination and the general extent can be determined by sampling methods. To determine the thicknesses an...
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Published in | Engineering Geology of Waste Disposal Vol. 11; pp. 77 - 86 |
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Main Authors | , , |
Format | Book Chapter |
Language | English |
Published |
The Geological Society of London
01.01.1996
Geological Society of London |
Series | Geological Society, London, Engineering Geology Special Publications |
Subjects | |
Online Access | Get full text |
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Summary: | The underwater sediments of the waterways, lakes and harbours of the Netherlands are sufficiently contaminated in many areas to necessitate their removal or isolation. The degree and nature of contamination and the general extent can be determined by sampling methods. To determine the thicknesses and distribution of the contaminated layers, shallow reflection geophysical surveys can be used in many situations, especially if previous erosion or dredging has created a slightly overconsolidated layer relative to subsequent deposition. The method is also used to aid investigation with respect to quantity control for sand placement to contain contaminated sediments in situ and to determine the depositional modes of hydraulically transported contaminated spoil in repository basins. Repository design for the Ketelmeer Lake allows for a certain amount of contaminant loss to the environment. The principal criterium is to significantly lessen contamination by 50%. Complete isolation would only improve the drop in contamination levels by a further small percentage. |
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ISBN: | 9781897799468 1897799462 |
ISSN: | 0267-9914 2041-4730 |
DOI: | 10.1144/GSL.ENG.1996.011.01.09 |