ABSTRACT

This chapter refers to a case study involving aspects of soil acidity and amelioration of copper (Cu)-, zinc (Zn)-, and lead (Pb)-contaminated soils around nonferrous industrial plants in Bulgaria. This chapter rst outlines the various soil physicochemical characteristics that inuence Cu, Zn, and Pb behavior, and then discusses the effects of applying organomineral mixtures containing lime, phosphorite-glauconite, peat, coal, and iron (Fe) hydroxides on the solubility, speciation, and bioavailability of Cu, Zn, and Pb to

CONTENTS

Study Sites ............................................................................................................ 295 Design of the Greenhouse Experiments .......................................................... 298 Soil Analysis ......................................................................................................... 299

Soil Solution Analysis ....................................................................................300 Physicochemical Characteristics of Soils .........................................................300 Organic Carbon and Cation Exchange Properties of the Soils Following Ameliorant Application ................................................................... 301 Total, Reactive, and Bioavailable Forms of the Heavy Metal in the Ameliorated Treatments .....................................................................................302 Composition and Properties of the Soil Solution from the Greenhouse Experiment with Heavy Metal-Contaminated Soils .....................................305