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https://open.uns.ac.rs/handle/123456789/31565
Nаziv: | Immobilization of cadmium from contaminated sediment using cardboard mill sludge | Аutоri: | Prica Miljana Dalmacija Milena Dalmacija Božo Pešić Vesna Krčmar Dejan Bečelić-Tomin Milena Milošević R |
Dаtum izdаvаnjа: | 2012 | Čаsоpis: | Archives of Environmental Protection | Sažetak: | Sludge from cardboard mill is most commonly landfilled, but it could also be recycled on-site into production or reused in some other way. In this study the use of sludge from cardboard mill as stabilizing agent in the stabilization treatment of cadmium polluted sediment was examined. The effectiveness of treatment and long-term leaching behavior of cadmium was evaluated by determining the cumulative percentage of cadmium leached, diffusion coefficients (De) and by applying different leaching tests (semi-dynamic test, toxicity characteristic leaching procedure, waste extraction test). In order to simulate the "worst case" leaching conditions, the semi-dynamic leaching test was modified using 0.014 M acetic acid (pH = 3.25) and humic acids solution (20 mg 1-1 TOC) as leachants instead of deionized water. A diffusion-based model was used to elucidate the controlling leaching mechanisms. Applied treatment was effective in immobilizing cadmium irrespective of high availability in the untreated sample. The controlling leaching mechanism appeared to be diffusion, which indicates that a slow leaching of cadmium could be expected when the cardboard mill sludge as stabilization agent is applied. © Copyright by Polish Academy of Sciences and Institute of Environmental Engineering of the Polish Academy of Sciences, Zabrze, Poland 2012. | URI: | https://open.uns.ac.rs/handle/123456789/31565 | ISSN: | 0324-8461 | DOI: | 10.2478/v10265-012-0039-z |
Nаlаzi sе u kоlеkciјаmа: | PMF Publikacije/Publications |
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