Adsorption Isotherms: North Caroline Apatite Induced Precipitation of Lead, Zinc, Manganese, and Cadmium from the Bunker Hill 4000 Soil
Abstract
Adsorption isotherm experiments using varying amounts of different apatites and a 10:1 water-to-soil ratio were used in combination with a thermodynamic model to determine the amount of apatite necessary to treat a given soil. These experiments suggest that soils may be remediated by extrapolating from the isotherm experiments. Given that a ton of soil has a mass of 9.07 x 10(exp 2) kg, and that, from this study, most metal precipitation occurs at 1% or less added NC apatite, remediation of a ton of contaminated soil would require 10 kg of NC apatite. Considering the shipping and material cost of the NC apatite, this remediation would be $5.49 per treated ton of soil. By comparison, grouting techniques can required as much as 30% to 50% by weight, depending on the porosity of the soil.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1995
- Accession Number
- ADA350592
Entities
People
- J. V. Wright
- T. E. Moody