EDTA-Enhanced Electroremediation of Metal-Contaminated Soil

In a laboratory-scale cell containing a fine sand that was contaminated with lead carbonate or with a mixture of lead sulfate and zinc carbonate, the impact of the chelating agent, EDTA, on the precipitation of metals by ionic migration was investigated. The experimental protocol is detailed. Result...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 1997-08, Vol.55 (1), p.61-61
Main Authors: Wong, Joseph SH, Hicks, REdwin, Probstein, Ronald F
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In a laboratory-scale cell containing a fine sand that was contaminated with lead carbonate or with a mixture of lead sulfate and zinc carbonate, the impact of the chelating agent, EDTA, on the precipitation of metals by ionic migration was investigated. The experimental protocol is detailed. Results showed that the removal efficiencies were generally above 80% for lead carbonate and 100% of both lead sulfate and zinc carbonate. Generally, removals were faster for the mixed metal precipitates than for lead carbonate alone. The metals were observed to be well solubilized by the EDTA as negatively charged complexes.
ISSN:0304-3894