A. MAJID, S. ARGUE
A process has been developed for the remediation of heavy metal contaminated, fine textured, solid wastes so that the treated material will meet EPA's TCLP and Total Extractable Metal Limits. The process involves the formation of strong aggregates using dry agglomeration methods. Remediation is achieved either by incorporating metal fixation agents into the agglomerates, or by leaching of heavy metal and other soluble salts by percolation through a packed bed of agglomerated soil. The newly developed process was applied to the remediation of a fine textured soil sample from a Dupont site contaminated with lead and a sediment from the Coeur d'Alene river, contaminated with Pb, Cd, and Zn. The results indicate that the removal of metals from agglomerated feed occurs on a time scale of hours compared to days for unagglomerated materials. Batch column extraction studies showed that HCl, EDTA and citric acid were effective extractants for the removal of lead from the agglomerated material. This study demonstrates that NRC's remediation process is suitable for the remediation of contaminated soil or soil-like materials and has potential for commercialization.
@article{88289003-2fd0-4804-93c2-5cffc443c008,
title={Remediation of heavy metal contaminated},
author={A. MAJID and S. ARGUE},
year={2026},
language={en}
}TY - JOUR TI - Remediation of heavy metal contaminated AU - A. MAJID AU - S. ARGUE PY - 2026 LA - en ER -
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