Dépôt numérique
RECHERCHER

Treatment of Aluminum Plant Hazardous Wastes Containing Fluorides and PAH.

Bongo, Ghislain; Mercier, Guy; Chartier, Myriam; Dhenain, Aurélie et Blais, Jean-François ORCID logoORCID: https://orcid.org/0000-0003-3087-4318 (2009). Treatment of Aluminum Plant Hazardous Wastes Containing Fluorides and PAH. Journal of Environmental Engineering , vol. 135 , nº 3. pp. 159-166. DOI: 10.1061/(ASCE)0733-9372(2009)135:3(159).

Ce document n'est pas hébergé sur EspaceINRS.

Résumé

Aluminum industry wastes are solid residues contaminated with polycyclic aromatic hydrocarbons (PAHs) and fluorides. The aluminum industry waste used in this study contained 1,129mgkg-1 of benzo(b,j,k)fluoranthene. On application of toxicity characteristic leaching procedure (TCLP), a leachate containing 448mgL-1 of fluoride ions was obtained. The decontamination of aluminum industry wastes was carried out in cycles and included a stage of flotation, followed by stabilization and neutralization. The flotation treatment in the cell containing wastes contaminated with a concentration of 15% (wv-1) in the presence of surfactant cocamydopropyl hydroxysultaine (0.25% ww-1) allowed 47 to 83% removal of benzo(b,j,k) fluoranthene. The subsequent step of lime stabilization (8% wv-1) allowed production of nonhazardous wastes. The concentration of fluoride ions resulting from the TCLP test (67mgL-1) remained lower than the permissible level (150mgL-1).

Type de document: Article
Mots-clés libres: industrial wastes; fluoride; disasters and hazards; pollution; hazardous wastes; waste management; waste treatment plants; hydrocarbons
Centre: Centre Eau Terre Environnement
Date de dépôt: 08 janv. 2021 15:23
Dernière modification: 18 févr. 2022 20:00
URI: https://espace.inrs.ca/id/eprint/10813

Gestion Actions (Identification requise)

Modifier la notice Modifier la notice