Polymer-functionalized nanoparticles as agents for the in situ remediation of oil-contaminated soils

Electrokinetic remediation of oil-contaminated soils.

This investigation was undertaken to determine the factors influencing electrokinetic remediation of soils from petroleum pollutants. The remediation method was applied in two versions: (i) static and (ii) flowing, when a sample was washed with leaching solution. It was found that all the soils studied can be purified using this technique. It was also observed that the mineral and grain-size co...

In Situ Remediation of Arsenic in Contaminated Soils

Owing to its toxic nature and relative abundance, arsenic is a common contaminant of concern in environmental cleanup. Arsenic is identified as a constituent of concern at 728 National Priorities List (NPL) sites as of fiscal year 1998, and arsenic in soil is specifically identified at 32 percent of these sites (Fiedler, 2001). Exposure to arsenic has been linked to a variety of cancers, cardio...

Final In - Situ Electrokinetic Remediation of Metal Contaminated Soils

Alternatives for the Remediation of Soils Contaminated with As , Cd

Purpose Section 121(b) of the Comprehensive Environmental Response , Compensation, and Liability Act (CERCLA) mandates the U.S. Environmental Protection Agency (EPA) to select remedies that " utilize permanent solutions and alternative treatment technologies or resource recovery technologies to the maximum extent practical " and to prefer remedial actions in which treatment " permanently and si...

Enhanced electrokinetic remediation of cadmium contaminated soils by chelating agents

Electrokinetic soil remediation by electroosmosis and ionic migration is restricted to soluble substances. At a higher pH, the soil particles sorb more heavy metals than at a lower pH and the precipitation reactions of heavy metals are promoted. Both mechanisms make heavy metals immobile, rendering cleanup more difficult and electrokinetic extraction inefficient. In this study, the effectivenes...