Stabilization of Cu-contaminated army firing range soils using waste oyster shells
- Authors
- Moon, Deok Hyun; Cheong, Kyung Hoon; Khim, Jeehyeong; Grubb, Dennis G.; Ko, Ilwon
- Issue Date
- 1월-2011
- Publisher
- SPRINGER
- Keywords
- Copper; Army firing range soils; Stabilization/solidification; Waste oyster shells; Korean Standard Leaching Test method
- Citation
- ENVIRONMENTAL GEOCHEMISTRY AND HEALTH, v.33, pp.159 - 166
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
- Volume
- 33
- Start Page
- 159
- End Page
- 166
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/113380
- DOI
- 10.1007/s10653-010-9358-y
- ISSN
- 0269-4042
- Abstract
- A stabilization/solidification (S/S) process was used to immobilize Cu in contaminated soils obtained from two army firing ranges sites (A and B) with total Cu concentrations of 520 and 380 mg/kg, respectively. Both waste oyster shells (WOS) and pretreated oyster shells (POS) were used to immobilize Cu in the contaminated soils. Waste oyster shells passing the #10 mesh and #20 mesh were used for the Sites A and B, respectively. WOS- and POS-treated soil samples cured for 28 days were evaluated for Cu leaching by the Korean Standard Leaching Test (KSLT) method. Slurry suspensions were prepared to investigate the Cu immobilization mechanism using X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) energy dispersive X-ray spectroscopy (EDX) analyses. The treatment results showed that the POS treatment was more effective than the WOS treatment of 28 days. For Site A, 10 wt% WOS and 3 wt% POS dosages were required to pass the Korean warning standard of 50 mg/kg, while 10 wt% WOS and 5 wt% POS dosages were required for the Site B treatment. The XRPD and SEM-EDX results showed that Cu immobilization was strongly linked to both CSH/CAH and ettringite. Overall, the POS treatment was effective at immobilizing the Cu in the contaminated soils, very likely due to its CaO content.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.