C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 11/14 (2006.01) B09B 3/00 (2006.01) C02F 11/00 (2006.01) C04B 28/06 (2006.01)
Patent
CA 2063395
2063395 9101280 PCTABS00003 A process is useful for rendering inert and/or immobilizing inorganic and/or organic environmentally harmful substances in aqueous dispersion, suspensions, emulsions and/or solutions of waste materials. At least one inorganic binder, in particular based on portland cement clinker, clay cement klinker and/or hydraulic lime, is added to the dispersion, suspension, emulsion and/or solution, possibly before, during or after a treatment to precipitate and/or convert the heavy metals, sulphur compounds, other harmful substances and/or organic compounds in the dispersion, suspension, emulsion and/or solution. A homogeneous mixture of the harmful material(s) and the binder(s) in the dispersion, suspension, emulsion and/or solution is obtained, preferably by stirring. If necessary it undergoes gravity separation, after which its water content is reduced, preferably by compressing it in a press.
Gowling Lafleur Henderson Llp
Jung Fritz
Techform Engineering Ag
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