The use of cardboard factory sludge in the remediation of zinc contaminated sediment

Autor: Prica Miljana, Dalmacija Milena, Dalmacija Božo, Tričković Jelena, Maletić Snežana
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Journal of the Serbian Chemical Society, Vol 77, Iss 8, Pp 1097-1107 (2012)
Druh dokumentu: article
ISSN: 0352-5139
DOI: 10.2298/JSC111111022P
Popis: Paper and cardboard factory sludges are generated by various processes during pulp, cardboard and paper production, and the increasing quantities produced make the disposal of this sludge a problem. This study investigates the use of cardboard factory sludge as a stabilizing agent in the solidification/stabilization (S/S) treatment of zinc polluted sediment. Semidynamic and toxicity leaching tests were conducted to assess the effectiveness of the solidification/stabilization treatment and long-term zinc leaching behaviour. A diffusion-based model was used to elucidate the controlling leaching mechanisms. The applied S/S treatment was effective in immobilizing zinc, and the controlling leaching mechanism appeared to be diffusion, which indicates that a slow leaching of zinc could be expected when cardboard mill sludge is applied as a S/S agent.
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