초록 ▼

A method of containing a liquid or semi-liquid hazardous waste found in an organic matrix, wherein the liquid or semi-liquid hazardous waste is mixed with combinations of calcium chloride, calcium formate, glycerine, pentaerythritol, 1,2-propanediol and pluraonic (Synperonic), water, and a cementiti

A method of containing a liquid or semi-liquid hazardous waste found in an organic matrix, wherein the liquid or semi-liquid hazardous waste is mixed with combinations of calcium chloride, calcium formate, glycerine, pentaerythritol, 1,2-propanediol and pluraonic (Synperonic), water, and a cementitious material such as Portland cement, fly ash, or kiln dust. These various mixtures of chemicals, moisture levels and cementitious material solidify to immobilize the constituents in the hazardous waste to reduce the extractability of the constituents from the resulting mixture.

대표청구항 ▼

A method of containing a hazardous waste material comprising or contained in an organic matrix within a solidified material in which the hazardous waste is at least partially immobilized comprising the steps of: preparing a first mixture comprising, a set accelerator for cementitious materials selec

A method of containing a hazardous waste material comprising or contained in an organic matrix within a solidified material in which the hazardous waste is at least partially immobilized comprising the steps of: preparing a first mixture comprising, a set accelerator for cementitious materials selected from the group consisting of calcium chloride and calcium formate; a set retarder for cementitious materials selected from the group consisting of glycerine, pentaerythritol and mixtures thereof; a permeability reducing agent selected from the group consisting of 1,2-propanediol, polyoxyalkylene derivatives of propylene glycol comprising difunctional block-polymers terminating in primary hydroxyl groups with molecular weights ranging from about 1,000 to greater than 15,000 and mixtures thereof; and water; preparing a second mixture comprising a substantially homogeneous mixture of said first mixture with said hazardous waste material comprising or contained in an organic matrix; preparing a slurry comprising said second mixture together with a cementitious material selected from the group consisting of Portland cement, fly ash and mixtures thereof; and permitting said slurry to form a solid composition wherein said hazardous waste material is at least partially immobilized.