Landfilling Ash/Sludge Mixtures
The geotechnical properties of a mixture of municipal solid waste incinerator bottom ash and municipal wastewater treatment plant sludge was investigated for a proposed ash/sludge secure landfill. The components as well as mixtures ranging from 10:1 to 5:1 (ash:sludge, by volume) were evaluated, where appropriate, for a number of geotechnical index and mechanical properties including particle size, water content, specific gravity, density-moisture relationships, shear strength, and compressibility. The results from a compactibility study and stability analysis of the proposed landfill were used to help approve a landfill codisposal concept; a full-scale facility was constructed and is currently operating successfully.
Journal of Geotechnical and Geoenvironmental Engineering
American Society of Civil Engineers
1. Benoît, J., Eighmy, T.T. and Crannell, B.S., "Landfilling Ash/Sludge Mixtures", ASCE Journal of Geotechnical and Geoenvironmental Engineering, Vol. 125, No. 10, October 1999, pp. 877-888.