Abstract
This study examined the leaching characteristics of three kinds of recycled glass materials by government standard testing method, availability test, pH dependent leaching test and percolation test.
As a result of the pH dependent test, leaching amounts of Pb increased in both the acid and alkali areas. Leaching amounts of Cr(VI) increased in the neutral area or the alkaline one. Leaching amounts of As of foaming glass and glass cullet increased in the neutral area, but of slag it increased in both the acid and alkali area. As a result of the percolation test, Pb and As leached at low L/S, T-Cr and Cr(VI) continued leaching until 10L/S. Effects on the groundwater by the leaching of heavy metals were evaluated by simulating percolation of rainwater into the recycled materials. As a result, foam glass affected 1060% to the environmental quality standard for groundwater. Other recycled materials comformed to this standard.
