오염된 철도도상자갈의 대량 정화시스템 연구

초록

Various chemical agents like surfactants or oxidants have been often used for the remediation of polluted railroad ballast gravels. In this study, novel physical remedaition method using alumina-type media for the treatment on a large-scale. A pilot-scale remediation system was prepared, and the treatment performance was tested under various conditions. It was observed that the treatment efficiency was better at high air pressure, more repetitive treatment, and more treatment time. However, the initial amount of gravels did not show significant effect on the performance because the initial amount (10 100 units) is within the range of the pilot-scale system. The economic aspect of this method will be analyzed to optimize the treatment condition of air pressure, number of repetitive treatment, treatment time, and amount of initial ballast.