Characterization and In-Situ Remediation of Chromium-Contaminated Soils and Sediments at the USCG Support Center, Elizabeth City, NC

Electrokinetic Modeling of the Enhanced Reduction of Hexavalent Chromium [Cr(VI)] in Porous Media

Solidification/Stabilization of Hexavalent Chromium Contaminated Soil

Specification of Cu, Pb and Cr in Contaminated Sediment Effected by pH
Sediment was sampled from a contaminated river. Sequential extraction was applied to determine the speciations of Cu, Pb, and Cr in the sediment with varied pH (5–9), and the redox potential...

Aggregates for Construction from Vitrified Chromium Contaminated Soils

Leachability Study of Chromium Contaminated Soils to Assess the Long-Term Effectiveness of a Remediation Technology

Hanford Ferrocyanide Reactivity: Effects of Other Tank Constituents
In this study simulated wastes were used to determine the effect of potential waste constituents on the reactivity and explosivity of Hanford ferrocyanide-bearing wastes. Test results...

Properties of Solidified/Stabilized Chromium Contaminated Soil

Cleaning Up Chromium
From 1956 to 1985, the United Chrome Products plant in Corvallis, Oregon, took a steady toll on the environment. Leaky plating tanks and the discharge of rinse water into a disposal pit...

Removal of Hexavalent Chromium and Trichloroethylene from Groundwater

A Clean Up in Slow Motion
Eight years have passed since contamination was first discovered at the Valley Wood Preserving plant in Turlock, Calif. Though severe chromium contamination continues to travel toward...

Chromium Removal by Activated Sludge
The behavior of chromium (Cr) in a laboratory-scale, activated sludge process was evaluated. Both pH and the oxidation state of Cr were confirmed as critical parameters for evaluating...

Recyclying of Dust from Electric Arc Funances—An Experimental Evaluation
Each year the electric arc steelmaking industry generates approximately 650,000 tons of dusts containing valuable metallic resources such as iron, zinc, lead, and chromium. EAF dust is...

Fixation of Chromium and Cadmium from Electroplating Waste Sludges
The authors compare the effectiveness of two fixation techniques, namely silicate-cement and lime-fly ash, for immobilizing chromium and cadmium in a waste sludge obtained from an electroplating...

RCRA EP Toxicity Test Applied to Dredged Material
A set of 25 Great Lakes harbor sediment samples were subjected to bulk sediment analysis and the EP Toxicity Test. Based on the results of this pilot study, there appears to be little,...

Simulation of Optical Properties of Black Chrome

Activated Carbon Reduction of Hexavalent Chromium

Alkaline Ferrous and Sulfide Reduction of Chromium

Optimization of the Ion Flotation of Dichromate
Data obtained with a pilot-plant scale, dissolved-air ion flotation unit, with feed chromium concentrations from 25 mg per 1 to 100 mg per 1 (as Cr2O7)...

Toxicity Measurements in Activated Sludge
Toxicity measurements in activated sludge show that the Michaelis-Menten theory and the theory of enzyme inhibition reveal reproducible data on toxicity and also may reveal, insights into...

 

 

 

 

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