Physical property and leaching tests were conducted to assess the engineering characteristics and pollution potential of five industrial wastes. Four solidification/stabilization processes which are under development or commercially available and represent different containment philosophies, were employed to produce four very different types of treated-waste products; one resembling low-strength concrete, one a rubber-like solid, one a solid plastic-encased block, and one a soil-like material. Physical tests used included determination of unconfined comprehensive strength, permeability, bulk density, and durability. The major environmental problem posed by these industrial wastes is the loss of inorganic constituents-heavy metals and high salt concentrations. Leach testing was conducted using continuous column leaching with CO2-saturated, distilled water. A flow rate of .00001 cm/sec was maintained for one to two years and the leachate from each column was collected and analyzed on a logarithmic schedule.

"EPA-600/2-82-099." "December 1982." "PB83-147983." Project officer, Robert E. Landreth. Final report ; Interagency agreement no.; Photocopy.