Sediment Capping Articles & Analysis
18 articles found
Application MethodChoose the most suitable application method for the biochar, whether it's incorporation into soil, sediment capping, or water treatment. The method will depend on the site and the nature of contamination.4.4. ...
(Global) to provide project management services to assure the project was constructed according specifications within the specified schedule and budget. Contaminated sediments were first removed from the surface of a previous cap using Terra’s patented Sed-Vac© technology. Contaminated sediments and water were processed on site and ...
Tissue contaminants reflected water, not sediment, levels. To compare sites all contaminant data above detection or reference were grouped as Total Metals (TMET) Total Polycyclic Aromatic Hydrocarbons (TPAH), Total PCB congeners (TPCB), Total Pesticides (TPEST) and Total Technical Chlordane (TCHL). ...
The longer‐term effect (3‐5 y) of thin‐layer capping on in situ sediment‐to‐surface water fluxes was monitored in a large‐scale field experiment in the polychlorinated dibenzodioxin and dibenzofuran (PCDD/F) contaminated Grenlandfjords, Norway (four trial plots of 10,000 to 40,000 m2 at 30 to 100 m water depth). ...
The model is parameterized using Bayesian inference and is then used to simulate the effect of capping parts of the polluted sediments with active carbon. Great care is taken in quantifying the uncertainty regarding the efficacy of the activated carbon cap to reduce the leaching of contaminants from the sediments. The model ...
Project: Port of Portland Nearshore Cap Location: Portland. OR Products: Bulk Organoclay Background: U.S. ...
ByCETCO
Provisions were made in the final design to include an Engineered Cap that would cover over 75,000 cubic yards of sediment to ensure there would be no re-suspension of contaminants. Reach #3 posed some unique geo-mechanical challenges to the design engineer due to the fact that the organic laden sediments being capped were very ...
ByCETCO
This Superfund Site encompasses approximately 41 acres of land and an additional 23 acres of contaminated sediment. Challenge: To successfully install a reactive sediment cap remedy that would effectively control nonaqueous phase liquid (NAPL) release, apparently associated with gas release, while minimizing the potential for resuspension of ...
ByCETCO
Solution: The solution included the installation of sheet piling around surcharge cap area and the placement of subaqueous reactive cap utilizing GAC Reactive Core Mat®, a granular activated carbon mat, in addition to a six inch sand cap over the contaminated sediments. To ensure the contaminates are properly sequestered, ...
ByCETCO
Challenge: As with Reach 3, there were still some geo-mechanical challenges for the design engineer due to the fact that the organic laden sediments being capped were unstable in some areas. Furthermore, this stretch of the river begins to widen out considerably and is subject to more water flow from nearby municipal sewage treatment plant (POTW) discharge. ...
ByCETCO
Project: Zidell Marine Corporation Sediment Cap Location: Portland, OR Products: Reactive Core Mat filled with Granular Activated Carbon (GAC) and Apatite II Background: Cleanup is required for land which was contaminated with a variety of chemicals as a result of ship construction, ship breaking, and barge construction at a site where heavy industrial use dates ...
ByCETCO
Project: Island End River Sediment Cap Location: Boston, MA Products: Organoclay Reactive Core Mat? ...
ByCETCO
Project: BROS Superfund Site Location: LOgan TOWTtsNp. NJ Products: Organoclay Reactive Core Mat BACKGROUND: Historical operations at the BROS Super-fund Site included waste oil storage, processing and disposal. The waste oil operations in addition to a major earthen dike breach in the 1970's resulted in extensive damage to plant life and significantly impacted approximately three acres of the ...
ByCETCO
Project: Collins Cove Shoreline Revetment & Sediment Cap Location: Beverly, MA Products: Organoclay Reactive Core Mat Triton Marine Mattresses by Tensar Background: The project is situated on a former manufactured gas plant (MGP) site located along the Collins Cove coast of Beverly, MA. ...
ByCETCO
A shoreline revetment and sediment capping project along the Collins Cove coast of Beverly, Massachusetts required an erosion solution. ...
ByCETCO
PROJECT: Island End River Sediment Cap LOCATION: Boston, MA RCM SQUARE FT: 35,000 ORGANOCLAY: 135,000 lbs CONTRACTOR: Sevenson Environmental Services, Inc. ...
ByCETCO
In the July 2002 issue dedicated to environmental dredging of World Dredging Mining & Construction, DEC present its newly developed in-situ immobilisation and capping technique for polluted sediments, the 3SI-technique. DEME Environmental Contractors N.V. ...
Containment treatments for soil, sediment, and sludge include landfill cap and water harvesting vegetative ...