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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Koutsospyros, Agamemnon Ok, Yong Sik Moon, Deok Hyun Park, Jeong-Hun Cheong, Kyung Hoon Hyun, Seunghun Chang, Yoon-Young |
| Description | Author Affiliation: Moon DH ( Department of Environmental Engineering, Chosun University, Gwangju, 501-759, Republic of Korea.); Cheong KH ( Department of Environmental Engineering, Chosun University, Gwangju, 501-759, Republic of Korea.); Koutsospyros A ( Department of Civil and Environmental Engineering, University of New Haven, West Haven, CT, 06516, USA.); Chang YY ( Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea.); Hyun S ( Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, Republic of Korea.); Ok YS ( Department of Biological Environment, Kangwon National University, Chuncheon, 200-701, Republic of Korea.); Park JH ( Department of Environmental and Energy Engineering, Chonnam National University, Gwangju, 500-757, Republic of Korea. parkjeo1@jnu.ac.kr.) |
| Abstract | A novel treatment mix was designed for the simultaneous immobilization of As, Cu, and Pb in contaminated soils using natural (waste oyster shells (WOS)) and industrial (coal mine drainage sludge (CMDS)) waste materials. The treatments were conducted using the standard U.S. sieve size no. 20 (0.85 mm) calcined oyster shells (COS) and CMDS materials with a curing time of 1 and 28 days. The As immobilization treatments were evaluated using the 1-N HCl extraction fluid, whereas the Pb and Cu immobilization treatments were evaluated using the 0.1-N HCl extraction fluid based on the Korean leaching standards. The treatment results showed that the immobilization of As, Cu, and Pb was best achieved using a combination mix of 10 wt% COS and 10 wt% CMDS. This treatment mix was highly effective leading to superior leachability reductions for all three target contaminants (>93 % for As and >99 % for Cu and Pb) for a curing period of 28 days. The X-ray absorption near-edge structure (XANES) results showed that As was present in the form of As(V) in the control sample and that no changes in As speciation were observed following the COS-CMDS treatments. The scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX) sample treated with 10 wt% COS and 10 wt% CMDS indicated that As immobilization may be associated with the formation of Ca-As and Fe-As precipitates while Pb and Cu immobilization was most probably linked to calcium silicate hydrates (CSHs) and calcium aluminum hydrates (CAHs). |
| ISSN | 09441344 |
| Issue Number | 3 |
| Volume Number | 23 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2016-02-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Animal Shells Chemistry Arsenic Coal Analysis Copper Lead Ostreidae Sewage Soil Pollutants Animals Calcium Carbonate Calcium Compounds Environmental Pollution Silicates Spectrometry, X-ray Emission Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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