MX9400213A - ENCAPSULATION OF CEMENT OF WASTE MATERIALS AND / OR CONTAMINATED SOILS THAT CONTAIN HEAVY METALS, TO MAKE THEM IMMOVABLE. - Google Patents
ENCAPSULATION OF CEMENT OF WASTE MATERIALS AND / OR CONTAMINATED SOILS THAT CONTAIN HEAVY METALS, TO MAKE THEM IMMOVABLE.Info
- Publication number
- MX9400213A MX9400213A MX9400213A MX9400213A MX9400213A MX 9400213 A MX9400213 A MX 9400213A MX 9400213 A MX9400213 A MX 9400213A MX 9400213 A MX9400213 A MX 9400213A MX 9400213 A MX9400213 A MX 9400213A
- Authority
- MX
- Mexico
- Prior art keywords
- cement
- metals
- cement composition
- waste
- encapsulation
- Prior art date
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
La presente invención se refiere a la encapsulación de cemento de materiales de desecho y/o suelos contaminados que contienen metales pesados, para hacerlos inmóviles, y particularmente a la inmovilización de metales, en cantidades reguladas, en estos desechos. Se proporcionan un producto de desecho que comprende a los metales. Se prepara una mezcla que incluya a los desechos y/o a los suelos contaminados que contienen metales pesados, agua, y una composición de cemento. La composición de cemento incluye óxido de magnesio y cloruro de magnesio en proporciones efectivas para producir, con el agua, un cemento de oxicloruro de magnesio. La composición de cemento está presente en una cantidad que, al fraguarse, es efectiva para inmovilizar los metales en el desecho y/o en los suelos contaminados. La presente invención es útil para el tratamiento de remedio de sitios de tierras de relleno. De una manera alternativa, la introducción de un agente retardante en la composición de cemento permitirá el transporte de la mezcla hacia otro sitio para su uso y depósito. La mezcla se puede bombear o forzar hacia adentro en el sitio, en donde se fraguará y se endurecerá. Esta aplicación es útil en la creación de un lechado de pared de pasta acuosa, y en la creación de cuencas de contención de pared de pasta acuosa.The present invention relates to the encapsulation of cement from contaminated waste materials and / or heavy metal-containing soils to render them immobile, and particularly to the immobilization of metals, in regulated amounts, in these wastes. A waste product comprising metals is provided. A mixture is prepared that includes waste and / or contaminated soils containing heavy metals, water, and a cement composition. The cement composition includes magnesium oxide and magnesium chloride in proportions effective to produce, with water, a magnesium oxychloride cement. The cement composition is present in an amount that, when set, is effective in immobilizing metals in the waste and / or in contaminated soils. The present invention is useful for the remedial treatment of landfill sites. Alternatively, the introduction of a retarding agent into the cement composition will allow the mixture to be transported to another site for use and deposit. The mix can be pumped or forced in to the site, where it will set and harden. This application is useful in creating an aqueous paste wall grout, and in creating aqueous paste wall retaining basins.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/999,286 US5276255A (en) | 1992-12-30 | 1992-12-30 | Cementitious encapsulation of waste materials and/or contaminated soils containing heavy metals, to render them immobile |
| US08/154,753 US5439318A (en) | 1992-12-30 | 1993-11-17 | Cementitious encapsulation of waste materials and/or contaminated soils containing heavy metals to render them immobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX9400213A true MX9400213A (en) | 1994-07-29 |
Family
ID=26851743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9400213A MX9400213A (en) | 1992-12-30 | 1994-01-03 | ENCAPSULATION OF CEMENT OF WASTE MATERIALS AND / OR CONTAMINATED SOILS THAT CONTAIN HEAVY METALS, TO MAKE THEM IMMOVABLE. |
Country Status (1)
| Country | Link |
|---|---|
| MX (1) | MX9400213A (en) |
-
1994
- 1994-01-03 MX MX9400213A patent/MX9400213A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration | ||
| MM | Annulment or lapse due to non-payment of fees |