ISSN: 0149-6115
Page Count: 7

Compatibility of Compacted Soils with Municipal Waste Combustion Ash Leachates

Sai, JO
Senior project engineer, science fellow, and project soil scientist,K. W. Brown Environmental Services,TX,

Anderson, DC
Senior project engineer, science fellow, and project soil scientist,K. W. Brown Environmental Services,TX,

Sullivan, BP
Senior project engineer, science fellow, and project soil scientist,K. W. Brown Environmental Services,TX,

Abstract

Hydraulic conductivity values for three compacted soils were used as indices of compatibility of the soils with two municipal waste combustion (MWC) ash leachates. Specimens of the three soils were compacted to 90% of proctor compaction (ASTM D 693) in double-ring permeameters and permeated first with water (0.005 N CaSO⁴) and then with MWC ash leachate. The hydraulic conductivity values of the soils did not change significantly after passage of more than two pore volumes of either MWC ash leachate. All three compacted soils were compatible with both MWC ash leachates.

Keywords:
soils, compaction, hydraulic conductivity, compacted soil, compatibility, municipal, waste, combustion, leachate, pore volume, landfill, electrical conductivity, double-ring, permeameter, monofill

Paper ID: GTJ10273J
DOI: 10.1520/GTJ10273J
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