송이 및 현무암 석분을 이용한 탄성포장재의 중금속제거에 관한 연구

Abstract

This research thesis has made the research on the removal of heavy metal of elasticity pavement through waste tire chips. To do it, this thesis has analyzed the removal effect of heavy metal iron(Cu, Pb, Cd, Cr)with the mixture of Scoria 4 Powdered Basalt Sludge 1 with elasticity pavement, in an effort to have the removal effect of heavy metal pollution source to arise from raindrop-runoff of elasticity pavement. This result reveals that heavy metal iron have had the tendency of being removed in order of Pb>Cd>Cu>Cr. Additives have been analyzed of having the removal rate in order of yellowish brown scoria > dark gray scoria>black scoria>reddish brown scoria> powdered basalt sludge. And, adsorption rate has suffered from the changes, which gradually increased up to 5wt% with the rising input of adsorbent, and remained point of reflection, with slant decreasing at 5~20 wt%. It is deemed that the optimum mixing ratio would accounts for 5~10wt%, if factors, such as elasticity, strength and color that the existing elasticity pavement has, are kept at right scope. With respect to additive scoria, yellowish brown, black and dark gray scoria is difficult to use, owing to a few of reserves. And, it would be effective to use reddish brown scoria containing the most reserves. Also, the recycling of powdered basalt sludge would contribute to using adsorbents to simultaneously reduce materials and cost involving environment preservation and waste disposal.