Authors: Fuchsman, P.C. et al.
Reference: Phyllis C. Fuchsman et al. (2013) “Monitored Natural Recovery” in Processes, Assessment, and Remediation of Contaminated Sediments. Ed. Reible, D.D. Springer. New York.
Summary: The topics of this text covers contaminated sediment management, sediment processes, risk assessment, and risk management. Thin-layer placement is discussed briefly with limitations highlighted by case study. Placement techniques are listed, such as: hydraulic washing from barges, discharge from swinging cable arm buckets, split hull hopper barges, underwater discharge, hydraulic spraying and spreader barges with diffuser plates. In summary, it was found that thin-layer placement is best for remediating moderately elevated concentrations, under quiescent conditions, and where there is minimal natural background sedimentation. A variety of placement techniques are discussed. Authors indicate considerations in monitoring thin layer placement, such as: the capabilities of multibeam bathymetry, impacts of benthic communities, and insufficient source control. The usefulness of Sediment Profile Imagining (SPI) camera to monitor is discussed.
What You Will Find Here: Sediment Deposition p. 243, Thin-Layer Placement and Stability p. 248, Monitoring (Goals, Case Studies) p. 251, Thin-Layer activated carbon p. 328, Monitoring thin-layer cap p. 357