Separation and Acidic Solution Washing for Heavy Metals from Contaminated Soils

摘要

Contaminated soils in the environment remain being a significant issue during land application. Numerous methods have been suggested in recent years for remove, treating and beneficial uses of heavy metal-containing soils. In this research, the basic characteristics and the geochemistry of metals in the soils were studied, and which were subjected to percolation test. The results of experimental leaching tests of soils are subjected to model calculations. In addition, the separation processes, hydrocyclone treatment, is designed to separate coarse and fine-grained particles by high settling velocity of particles. The FLUENT flow simulations are help to demonstrate to liquid-solid flow and the simulation results are feedback to the hydrocyclone operation and design.