NDLI: Dispersal and fate of dredged materials disposed of in the Changjiang Estuary determined by use of an in situ rare earth element tracer

Content Provider	Springer Nature Link
Author	Liu, Gao feng Wu, Hua lin Guo, Wen hua Zhu, Jian rong Sun, Lian cheng
Copyright Year	2011
Abstract	To investigate the dispersal pattern and the fate of dredged materials disposed at a pre-selected disposal site, a field tracer experiment was conducted in the North Passage of the Changjiang Estuary during the 2005 flood season. Three tons of dredged materials were mixed with 2.792 kg of sodium hexachloroiridate (IV) hexahydrate (SHH), which contained the rare earth element tracer iridum (Ir). Sampling was conducted at pre-selected sections of the estuary on the second, third and fourth day after the release of dredged materials. All samples were evaluated by use of neutron activation analysis. The majority of the dredged material was dispersed nearly parallel to the navigation channel and deposited between the channel and the south dike. Only a small quantity of dredged materials entered or crossed the navigation channel, and the back silting ratio in the navigation channel was about 5%. The dredged materials also dispersed southeasterly beyond two dike heads.
Starting Page	495
Ending Page	506
Page Count	12
File Format	PDF
ISSN	08905487
Journal	China Ocean Engineering
Volume Number	25
Issue Number	3
Language	English
Publisher	Chinese Ocean Engineering Society
Publisher Date	2011-08-27
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	dredged material tracer sediment transport Neutron activation analysis deepwater navigation channel of the Changjiang Estuary Oceanography Offshore Engineering Fluid- and Aerodynamics Coastal Sciences Marine & Freshwater Sciences Numerical and Computational Physics
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Renewable Energy, Sustainability and the Environment Mechanical Engineering

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