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Stabilization of lead and copper contaminated firing range soil using calcined oyster shells and fly ash.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Moon, Deok Hyun Park, Jae-Woo Cheong, Kyung Hoon Hyun, Seunghun Koutsospyros, Agamemnon Park, Jeong-Hun Ok, Yong Sik
Spatial Coverage	Republic of Korea
Description	Author Affiliation: Moon DH ( Department of Environmental Engineering, Chosun University, Gwangju, 501-759, Korea, dmoon10@hotmail.com.)
Abstract	A stabilization/solidification treatment scheme was devised to stabilize Pb and Cu contaminated soil from a firing range using renewable waste resources as additives, namely waste oyster shells (WOS) and fly ash (FA). The WOS, serving as the primary stabilizing agent, was pre-treated at a high temperature to activate quicklime from calcite. Class C FA was used as a secondary additive along with the calcined oyster shells (COS). The effectiveness of the treatment was evaluated by means of the toxicity characteristic leaching procedure (TCLP) and the 0.1 M HCl extraction tests following a curing period of 28 days. The combined treatment with 10 wt% COS and 5 wt% FA cause a significant reduction in Pb (>98 %) and Cu (>96 %) leachability which was indicated by the results from both extraction tests (TCLP and 0.1 M HCl). Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) analyses are used to investigate the mechanism responsible for Pb and Cu stabilization. SEM-EDX results indicate that effective Pb and Cu immobilization using the combined COS-FA treatment is most probably associated with ettringite and pozzolanic reaction products. The treatment results suggest that the combined COS-FA treatment is a cost effective method for the stabilization of firing range soil.
File Format	HTM / HTML
ISSN	02694042
Issue Number	6
Volume Number	35
e-ISSN	15732983
Journal	Environmental Geochemistry and Health
Language	English
Publisher	Springer
Publisher Date	2013-12-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Environmental Health Copper Chemistry Environmental Pollution Prevention & Control Environmental Restoration And Remediation Methods Lead Soil Pollutants Adsorption Animals Calcium Carbonate Calcium Compounds Coal Ash Analysis Economics Microscopy, Electron, Scanning Ostreidae Oxides Republic Of Korea Spectrometry, X-ray Emission Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Medicine Geochemistry and Petrology Environmental Engineering Water Science and Technology

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