Abstract
The author examined the rate of zeolite and the pH of the eluent relevancy by rock classification, analysis on arsenic, and XRD of the borehole core specimen out of the tunnel ground. As the results, 1) the correlation was admitted in the contaminant content (CC) and the leachate concentration (LC) of the arsenic. Moreover, the type with a lot of LC and the type that LC doesn't exceed criteria value were admitted. 2) As for the pH of the eluent, the CC is a little and the LC is high in 7-9 and neutral-alkalinity. The pH of the eluent is about 8-10 and is alkalinity, and the CC is a little and the LC is high. 3) The negative correlation was admitted in the diffracted intensity of zeolites by XRD and the LC of arsenic.
