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Title: Solidification stabilization of hazardous arsenic-containing waste from a copper refining process
Authors: Dutre, V ×
Vandecasteele, Carlo #
Issue Date: Jan-1995
Publisher: Elsevier science bv
Series Title: Journal of hazardous materials vol:40 issue:1 pages:55-68
Abstract: An industrial waste, originating from a metallurgical process in which copper is refined and containing large amounts of arsenic (42 wt%), was studied. A suitable treatment method, solidification/stabilisation (S/S), allowing a reduction of the leachability of arsenic from the waste was studied and optimised by measurement of the influence of all additives (waste acid, blast-furnance slag, slaked lime, cement) used in the process. The S/S process could thus be simplified considerably. The addition of lime to the waste was the most important factor in reducing the arsenic concentration in the leachate by formation of a hardly soluble calcium-arsenic compound. To reduce the arsenic concentration in the leachate even further, by formation of other insoluble compounds, the addition of aluminium and barium salts was investigated.
URI: 
ISSN: 0304-3894
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Process Engineering for Sustainable Systems Section
× corresponding author
# (joint) last author

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