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DEMONSTRATION BULLETIN - SOLIDIFICATION/ STABILIZATION PROCESS, SOLIDTECH, INC.
Citation:
U.S. EPA. DEMONSTRATION BULLETIN - SOLIDIFICATION/ STABILIZATION PROCESS, SOLIDTECH, INC. U.S. Environmental Protection Agency, Washington, DC, EPA/540/M5-89/005, 1989.
Impact/Purpose:
to inform the public
Description:
The Soliditech solidification/stabilization technology mixes hazardous waste materials in soils or sludges with pozzolanic material (cement, fly ash, or kiln dust), a proprietary additive called Urrichem, other proprietary additives, and water. The process is designed to aid in the physical and chemical immobilization of the hazardous waste constituents by binding them in a leachresistant matrix. After the contaminated waste material is collected and screened to remove oversized material, it is introduced to a batch mixer. Each waste material is mixed with proprietary chemical reagents and additives, water, and cement. Figure 1 is a schematic of the process. Once thoroughly mixed, the treated waste is discharged from the mixer and allowed to harden. The treated waste is a solidified mass with significant unconfined compressive strength, high stability, and a rigid texture similar to concrete. Batch mixers of various capacities are available to treat different volumes of waste.