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Paper mill sludge-soil mixture: Kinetic and thermodynamic tests of cadmium and lead sorption capability

TitlePaper mill sludge-soil mixture: Kinetic and thermodynamic tests of cadmium and lead sorption capability
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2003
AuthorsBattaglia, A., Calace N., Nardi Elisa, Petronio B.M., and Pietroletti M.
JournalMicrochemical Journal
Volume75
Pagination97-102
ISSN0026265X
Keywordsaluminum silicate, article, Cadmium, carbonic acid derivative, cellulose, chemical interaction, chemical modification, heavy metal removal, inorganic compound, Lead, Lignin, organic compound, Paper industry, sludge, Soil, tannin, thermodynamics
Abstract

Paper mill sludge (characterized by 29.0% of organic substances such as cellulose, lignin and tannins and 71.0% of inorganic substances such as kaolinite and carbonates) was studied in a mixture with soil in order to evaluate its effects on soil capability for retaining heavy metals. Attention was focused on cadmium and lead sorption and two parameters were investigated, the contact time of paper mill sludge-soil mixture and the paper mill sludge-soil ratio in the mixture. Results showed that paper mill sludge and soil interact to form 'new' sorbing sites. Taking into account sorption results of lead, the retention of which by soil is substantially increased by sludge addition, can highlight this modification. Also, the amount of sorbed cadmium was increased by sludge addition. © 2003 Elsevier Science B.V. All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0141788528&doi=10.1016%2fS0026-265X%2803%2900074-2&partnerID=40&md5=24a0cd415d6ccb64ad2e3eed0c1b2f18
DOI10.1016/S0026-265X(03)00074-2
Citation KeyBattaglia200397