Immobilization of Pb From Contaminated Water, Soils, and Wastes by Phosphate Rock

摘要

This research studies the feasibility of using phosphate rock and hydroxyapatiteto immobilize Pb from aqueous solutions and contaminated soils, investigated the effects of CaCO3, aqueous Ca, Na, and K, and EDTA on aqueous PB immobilization by hydroxyapatite, examined the stability of hydroxypyromorphite in the presence of high concentrations of anion exhange resin, aqueous Ca(+2), and EDTA, and determined the feasibility of using hydroxyapatite in immobilizing AsO4-3.