Studies of channel sediments contaminated with organics and heavy metals.
The paper discusses the geo-environmental studies carried out to revitalise a silted up channel in Guanabara Bay. A dredging operation has been planned to remove about 1.5 million cubic meters of contaminated sediment. Investigations were performed to characterise the sediment in terms of its physical and chemical properties and to evaluate the presence of heavy metals and organic compounds, particularly polycyclic aromatic hydrocarbons PAH. Finally, dredging and disposal schemes are briefly outlined based on measured contamination levels.
Barbosa
Maria Claudia
MC
Civil Engineering Program, COPPE-Graduate School of Engineering, Federal University of Rio de Janeiro, P.O. Box 68506, 21945-970 Rio de Janeiro, Brazil.
de Almeida
Márcio de Souza Soares
Mde S
Mariz
Digna Faria
DF
de Almeida
José Luis Duarte Silva Serzedelo
JL
D001938:Brazil; D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D009930:Organic Chemicals / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods; D012623:Seawater / Q000737:chemistry*; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
D019216:Metals, Heavy; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical