【作者】 曹宏； 宾晓蓓； 陈加藏；

【Author】 CAO Hong 1,BIN Xiao bei 2 and CHEN Jia zang 1 (1. School of Material Science and Technology, Wuhan Institute of Chemical Technology, Wuhan 430074, China; 2. School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China)

【机构】 武汉化工学院材料科学与工程学院； 武汉理工大学资源与环境工程学院；

【摘要】 探讨了不同温度下膨胀石墨对纯机油的饱和吸附,采用静态吸附和动态过滤方法研究了膨胀石墨对水面漂浮机油的吸附效果。结果表明,饱和吸附量与其膨胀容积和温度有关,最大可达80 .7g/ g ;在小于饱和吸附量的情况下,静态吸附后水中残留油含量与初始油浓度和膨胀容积有关,一般在5 0mg/L以下,经一次动态过滤,滤液中残留油含量已低于检测限,多次过滤冲洗亦未使已吸附机油脱附。膨胀石墨对机油具有超大饱和吸附量,静态和动态方法都可有效清除水面漂浮机油更多还原

【Abstract】 In this paper, the saturation adsorption of machine oil on the exfoliated graphite at different temperatures was studied, and the adsorption effect of machine oil was observed by static adsorption and dynamic filtration. The results show that the saturation adsorption capacity is related to the expansion volume of exfoliated graphite and the oil temperature. The largest adsorption quantity can reach 80.7 g/g. When the oil content is lower than the saturation adsorption, the concentration of remnant oil after static adsorption is related to the expansion volume and original concentration, being generally lower than 50 mg/L. The concentration of remnant oil in water is zero after the first dynamic filtration, whereas the de_adsorption of the oil in the exfoliated graphite can not be realized even after many times of filtration. In conclusion, the exfoliated graphite has a super_adsorption capacity for machine oil, and the floating machine oil can be effectively cleared away by static or dynamic filtration.更多还原