ABSTRACT
Some leachate analysis was also conducted to better assess the differences between several end products with respect to teachability. The results showed that simultaneous effects of the cementing, pozzolanic and sorbent reactions of additives produce a stabilized product with good physical properties and reduced fuel oil content in the leachate relative to that of unstabilized soil. A petroleum hydrocarbon either degrades or remains unaltered in soil. Degradation comes about by microbial metabolism in which the hydrocarbon may be oxidized to carbon dioxide and water. If the soil is contaminated with gasoline-range hydrocarbon liquids made up of a mixture of volatile hydrocarbons, the liquid state of the hydrocarbon remains in equilibrium with its vapor state. Chemical reactions may occur between some organics and the inorganic, cemen-tatious additives in soils. Oxidation, along with hydrolysis, is probably the most common reaction for organics in stabilization/solidification systems. Reduction, salt formation and dispersion are also other possible reactions.
