Abstract: The present invention relates to a mobile system for vacuum-conveying ACM or other material, hazardous or non-hazardous, from its point of removal to a self-propelled mixer where the ACM or other conveyed material is converted into a water slurry utilizing spent or contaminated scrubber solution. Then portland cement and sand, as needed, is added to form a cementatious mass which can be cast into blocks which are non-hazardous and which can be used for riverbank stabilization or to make artificial reefs. The mass can also be cast into a prepared hole for semi-permanent storage either on the owner's property or in a suitable landfill.

Abstract: A system for burning two fuels in a burner wherein the second fuel is available in varying amounts. In response to the sensing of the available supply of the second fuel and the sensing of the total fuel required to be supplied to the burner, the system proportions the total fuel supplied to the burner between the first and second fuels to use as much of the second fuel as the supply will permit to meet the total fuel requirement. In addition, the system cuts off the supply of the first fuel to the burner when the available supply of the second fuel is adequate to meet the total fuel requirement and turns on the supply of the first fuel when the available supply of the second fuel is not adequate to meet the total fuel requirement.

Abstract: A process is described for recovering calcium hypochlorite values from the filter media employed in the filtration of calcium hypochlorite slurries. Deposits of Ca(OCl).sub.2 along with insoluble materials adhering to the filter media are washed with an aqueous solution of calcium hypochlorite to form a slurry of calcium hypochlorite solids. Water is used to wash the filter media to dissolve any remaining Ca(OCl).sub.2 and form a solution of calcium hypochlorite. The slurry and solution are then admixed to provide a solution of calcium hypochlorite whose concentration is controlled within the range of from about 45 to about 215 grams per liter of Ca(OCl).sub.2. This solution is employed in the production of calcium hypochlorite and is recycled to the washing step.