Evaluation of Cement, Lime, and Asphalt Amended Municipal Solid Waste Incinerator Residues
Abstract
The ability of type II portland cement, hydrated lime, and AC-10 asphalt to solidify/stabilize municipal solid waste (MSW) incinerator residues was evaluated. Leachate withdrawal was controlled at 0.13 ml/min until final liquid/solid ratios of 0.6, 0.4, and 0.9 was achieved in the cement, lime, and residue control columns, respectively. The leachates were analyzed for metal (Pb, Ni, Zn, Al, Ca, Mn, Na, Cd, Cu, Fe) and anion (Cl, SO4, NO3, PO4, Br) concentrations, alkalinity, pH, redox potential, and conductivity. Successful immobilization of all tested metals except lead, aluminum, and nickel, were seen in the cement amended leachates, while only zinc and manganese were leached from the lime amended columns in concentrations exceeding those found in the residue control. The test results revealed little differences in metal mobility between wastes of varying percent amendment addition. In general, cement, lime, and asphalt amended residues demonstrated reduced mobility for cadmium, manganese, and aluminum relative to the concentrations measured in the control leachates. Compressive strength tests were performed on replicate specimens of all cement, lime, and asphalt amended matrices as a measure of residue solidification. Theses.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1989
- Accession Number
- ADA218197
Entities
People
- Peter J. Holland
Organizations
- Air Force Institute of Technology