| 摘要 |
<p>A process for solidifying organic waste in cement for transport and storage in solid form comprises the steps of dispersing the organic waste in water containing a cationic amine as an emulsifier, mixing the resulting emulsion with cement without breaking the emulsion, casting the resulting mixture in a form and allowing it to solidify, and storing the solidified form in a waste disposal site. In a preferred embodiment of the process, a particulate material with a negative surface charge is included in the mixture of cement and emulsion to neutralize positive charges on the cationic emulsifier and the cement. An alcohol or glycol may be included in the emulsion to enhance the holding power and the integrity of the structure of the emulsion by controlling size and uniformity of emulsion particle size. The process is applicable to organic wastes such as waste oils, halogenated solvents, non-halogenated solvents, pesticides, herbicides, liquids and sludges containing heavy metals, and radioactive mixed wastes.</p> |
