과립형 광물의 액상 에탄올 수착 용량 및 속도에 대한 고찰

초록

Ethanol sorption experiments were performed for 9 kinds of particulate minerals to find novel sorbent material with a higher sorption capacity than dried soil or sand used in the spill accident of liquid hazard chemicals. Since there was no standard method for the sorption evaluation, an experimental protocol was proposed to determine sorption capacity and rate for spilled hazard chemicals over nonpermeable floor. The sorption capacity exhibited higher values for the porous minerals of expanded vermiculite (1.64 g/g), perlite (0.57 g/g), orchid stone (0.48 g/g) and diatomite (0.34 g/g) than 0.02 g/g of masato. Macropores larger than 1 µm were found more responsible for the sorption than nm-sized micropores by N2 adsorption measurements. Furthermore, the sorption was found to reach to a steady state within 10 minutes from the dependence of an immersing time on the capacity

키워드