详细信息
文献类型:期刊文献
中文题名:钠基膨润土对水中Cr(VI)的等温吸附模型研究
英文题名:Research on the Thermal Adsorption Model of Cr(VI) with Na-bentonite
作者:于涛[1];马芸[2]
机构:[1]新乡学院化学与化工学院;[2]新乡学院土木工程与建筑系
第一机构:新乡学院化学化工学院
年份:2013
卷号:41
期号:21
起止页码:41-42
中文期刊名:广州化工
外文期刊名:Guangzhou Chemical Industry
基金:河南省重点科技攻关项目(No:102102210445)
语种:中文
中文关键词:钠基膨润土;Cr(VI);等温吸附
外文关键词:Na - bentonite ; Cr(VI) ; absorption isotherm
摘要:采用批量吸附实验,在初始Cr(VI)浓度5 mg/L、温度298 K、pH为3.5、吸附时间2 h、钠基膨润土量分别为0.1g、0.2 g、0.4 g、0.6 g、0.8 g、1.0 g、1.5 g条件下,研究了钠基膨润土对水中Cr(VI)的吸附行为。结果表明,等温吸附线符合Langmuir及Freundlich模型。吸附过程为优惠吸附,饱和吸附量为0.9995 mg/g。
The adsorption of Cr (VI) in aqueous solutions by Na - bentonite was investigated with a batch - adsorption experiment, in the conditions of Cr (VI) initial concentration of 5 mg/L, 298 K, pH = 3.5, 2 h, Na - bentonite dosage of 0. 1 g, 0. 2 g, 0. 4 g, 0. 6 g, 0. 8 g, 1.0 g and 1.5 g. The results showed that the absorption isotherm matched the Langmuir and Freundlich models well. The adsorption was a favorable adsorption process, and the maximum saturation adsorption quantity was 0. 9995 mg/g.
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