METHOD FOR STABILIZATION OF HEAVY METALS IN SOILS USING EGGSHELL POWDER

摘要

PURPOSE: a kind of heavy metal-polluted soil stabilization method is provided to the concentration of reduction heavy metal in soil with egg-shell meal, improves the pH value of soil, improves the quality of soil, passes through and increases exchangeable calcium ion. ;A kind of CONSTITUTION: the step of heavy metal-polluted soil stabilization method using Eggshell powder includes: the chorion of crushing; It is 1 ~ 5 weight % that the chorion that pollution with the chorion and heavy metal-polluted soil of co-grinding is crushed with the mixture concentration, which is mixed with The Heavy Metal Contaminated Soil,. The chorion of this method co-grinding and heavy metal pollution of soil with following steps: the concentration for measuring heavy metal-polluted soil is stablized; Determine that the concentration needs the concentration of heavy metal in the chorion of reduction crushing unqualified; Mixing determines the concentration of the chorion crushed to contaminated soil. The standard heavy metal contamination per kilogram lead is 300mg, and per kilogram 4mg is used for cadmium. ;The 2010 of copyright KIPO submissions