| 摘要 |
<p>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.</p> |
