Contaminated Sediment Dredging Articles & Analysis
10 articles found
Description: In 2007, the Port of Olympia found elevated levels of dioxins in an area scheduled for maintenance dredging. The contaminated sediments have since been dealt with. During this project SediMeters™ were deployed in the area to monitor for near-bed elevated turbidity levels. The SediMeter™ instruments were mounted on steel ...
These targets need to balance short term impacts with the longer term benefit of removing contaminated sediments from the environment. Environmental dredging is part of the planned remediation of Randle Reef (a 60 hectare zone of mostly polycyclic aromatic hydrocarbon (PAH) contaminated sediments) in Hamilton, ...
Benthic invertebrate communities were assessed following the December 2008 release of approximately 4.1 million m3 of coal fly ash from a disposal dredge cell at the Tennessee Valley Authority (TVA) Kingston Fossil Plant on Watts Bar Reservoir in Roane County, Tennessee. Released ash filled the adjacent embayments and the main channel of the Emory River migrating into reaches of the Emory, ...
In these areas there was no space to contain the sediments to be dredged. The contaminated sediments in these specific area's had to be removed in a careful way to prevent contact of sediment with the surrounding land used by potato farmers. ...
Tim had told Mike about using TenCate Geotube technology on projects where they were dredging contaminated sediments. Combining Experience and Innovation Mike made the decision early in life to pursue a career in mining. ...
Participants received a certificate of completion and 2.9 continuing education units. A wide range of dredging and dredged material placement topics were covered including: dredge pump and slurry pipe flow principles; sediment re-suspension; basic geotechnical engineering and dikes; cost estimating; basic ...
Contaminated (TPHs and heavy metals) dredged sediments from Livorno port (Italy) were biological treated using plants and earthworms. Sediments presented an asphyctic physical structure owing to the silt?clay granulometric composition, a high salty level and a low organic content. ...
Contaminated sediments are a common problem for communities and industries around the world. ...
ABSTRACT Confined disposal facilities with filter layers have been used for disposal of dredged sediments for decades. Recent assessment of the environmental risk of contaminants in sediments has resulted in the use of lined confined disposal facilities. ...
ByCETCO
At the Fox River site, Geotube dewatering technology is part of an operation that involves dredging and dewatering over 750,000 cubic yards of river sediments contaminated with PCBs. ...