A method for stabilization and/or fixation of leachable metals

B - Operations – Transporting – 09 – B

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B09B 3/00 (2006.01)

Patent

CA 2704526

Methods for treatment a heavy metal-contaminated solid, semi-solid, liquid or gaseous matrix with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium chloride, magnesium hydroxide, and mixtures of any two or more of these. Methods for treatment of a solid or semi-solid waste containing unacceptable levels of leachable aluminum and reactive metal-lic aluminum-containing waste with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium hydroxide, magnesium chloride, and mixtures of any two or more of these.

La présente invention concerne des procédés de traitement d'une matrice solide, semi-solide, liquide ou gazeuse contaminée par un métal lourd avec de l'oxyde de magnésium, du sulfite de magnésium, du sulfate de magnésium, du chlorure de magnésium, de l'hydroxyde de magnésium et des mélanges de deux quelconques de ceux-ci ou plus. Elle concerne des procédés de traitement d'un déchet solide ou semi-solide contenant des niveaux inacceptables d'aluminium lixiviable et d'un déchet contenant de l'aluminium métallique réactif avec de l'oxyde de magnésium, du sulfite de magnésium, du sulfate de magnésium, de l'hydroxyde de magnésium, du chlorure de magnésium et des mélanges de deux quelconques de ceux-ci ou plus.

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