منابع مشابه
Transport of Dredged Sediments after Disposal Operation in Lake Erie
A dredged material disposal operation was monitored on a location in Lake Erie 8 km offshore Ashtabula, Ohio, June to November, 1975. Some 200 sediment cores were collected in the periods before and after dredging and analyzed for the grain-size distribution of the sediments. Two current meters and a wave sensor moored nearby monitored the movement of the water masses. The sediments were dredge...
متن کاملLeaching of heavy metals from dredged bottom sediments
Deposition of sediments on land in atmospheric conditions causes many risks connected with environmental protection. Particularly dangerous is leaching of heavy metals from sediments deposited on land The research aimed at assessment of leaching of heavy metals from dredged bottom sediments potentially disposed on land. In this research it has been shown that the leaching of heavy metals during...
متن کاملElectroosmotic dewatering of dredged sediments: bench-scale investigation.
The Indiana Harbor (Indiana, USA) has not been dredged since 1972 due to lack of a suitable disposal site for dredged sediment. As a result of this, over a million cubic yards of highly contaminated sediment has accumulated in the harbor. Recently, the United States Army Corps of Engineers (USACE) has selected a site for the confined disposal facility (CDF) and is in the process of designing it...
متن کاملThe Distribution of Trace Metal Pollutants within Intertidal Sediments of the Tamar Estuary, Sw England
Concentrations of trace metal pollutants are frequently reported from intertidal sediments (e.g. Bryan and Langston, 1992; French, 1993; Lindsay and Bell, 1997; Pirrie et al., 1997, 2000) and as these areas are often sites of intense human and animal activity, the level of contaminants are of particular interest with respect to environmental health (Rae, 1997; Clark, 1997). When trace metals ar...
متن کاملEvaluation of Trace Metal Levels in Surface Sediments of the Sergipe River Hydrographic Basin, Northeast Brazil
As distribuições de Co, Cr, Cu, Mn, Ni, Pb, Fe e Al foram investigadas em sedimentos superficiais coletados em 19 sítios da Bacia Hidrográfica do Rio Sergipe, Nordeste do Brasil. Foi definida uma base geoquímica para a região (RGB) usando o ferro como elemento de referência. Fatores de enriquecimento (EF) e índice de geoacumulação (Igeo) foram empregados para determinar a contribuição por orige...
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ژورنال
عنوان ژورنال: Journal of Environmental Quality
سال: 2000
ISSN: 0047-2425,1537-2537
DOI: 10.2134/jeq2000.00472425002900040013x