In Situ Immobilization of Heavy Metals in Apatite Mineral Formulations

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 suggested that soils may be remediated by extrapolating from the isotherm experiments, which equates to 10-50 kg of apatite per treated ton of soil, or less than 1% by weight. By comparison, grouting techniques can require as much as 30% to 50% by weight, depending upon the porosity of the soil.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1995
Accession Number
ADA350515

Entities

People

  • James L. Conca
  • Judith V. Wright
  • Loni M. Peurrung
  • T. E. Moody
  • Xiaobing Chen

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Ecology
  • Elements
  • Environmental Protection
  • Environmental Restoration And Remediation
  • Groundwater
  • Heavy Metals
  • Isotherms
  • Materials Science
  • Measurement
  • Metals
  • Mineralogy
  • Physical Properties
  • Spectra
  • Water Resources

Readers

  • Data Mining and Knowledge Discovery.
  • Geotechnical Engineering.
  • Mathematics or Statistics