SEQUESTERING AGENTS FOR METAL IMMOBILIZATION APPLICATION TO THE DEVELOPMENT OF ACTIVE CAPS IN FRESH AND SALT WATER SEDIMENTS

Conference · Fri Nov 17 00:00:00 EST 2006

OSTI ID:897089

Knox, A; Michael Paller, M

This research evaluated the removal of inorganic contaminants by a variety of amendments and mixtures of amendments in fresh and salt water. A series of removal and retention batch experiments was conducted to identify the best treatment for metal removal. Metal removal by the amendments was evaluated by calculating the partition coefficient and percent removal. Retention of metals by the amendments was evaluated in retention (desorption) studies in which residue from the removal studies was extracted with 1 M MgCl{sub 2} solution. The results indicated that phosphate amendments, some organoclays (e.g., OCB-750), and the biopolymer, chitosan, are very effective in removal and retention of metals in both fresh and salt water. These amendments are being evaluated further as components in the development of active caps for sediment remediation.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC09-96SR18500
• OSTI ID: 897089
• Report Number(s): WSRC-STI-2006-00314; TRN: US200704%%165
• Resource Relation: Conference: Fourth International Conference on Remediation of Contaminated Sediments
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
REMEDIAL ACTION
SEAWATER
FRESH WATER
METALS
ADSORBENTS
PHOSPHATES
REMOVAL
SEDIMENTS
CLAYS
MATERIALS TESTING