| 膨润土对不同价态铬的吸附研究 |
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| 引用本文： | 邵 涛,姜春梅.膨润土对不同价态铬的吸附研究[J].环境科学研究,1999,12(6):47-49. |
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| 作者姓名： | 邵 涛 姜春梅 |
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| 作者单位： | 江苏石油勘探局环境监测中心站,江都 225261 |
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| 摘 要： | 对铬的2种价态化合物(三价铬和六价铬)在膨润土上的吸附行为进行了实验研究，通过对3种不同形式的吸附等温线的比较，选择出最符合2种价态铬化合物的Freundlich和Langmuir等温线，确定三价铬的最大饱和吸附量为0.47 mg/g，同时还研究了pH值对吸附的影响，探讨了石灰及2种表面活性剂SN－1和ABSN对铬的吸附影响。
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| 关 键 词： | 膨润土 吸附 铬化合物 等温线 |
Adsorption Study on Bentonites to Chromium Compounds of Different Valencies |
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| SHAO Tao and JIANG Chun-mei.Adsorption Study on Bentonites to Chromium Compounds of Different Valencies[J].Research of Environmental Sciences,1999,12(6):47-49. |
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| Authors: | SHAO Tao and JIANG Chun-mei |
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| Institution: | Environmental Monitoring Center,Jiangsu Petroleum Administration Bureau,Jiangdu 225261 |
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| Abstract: | The adsorption of two kinds of chromium compounds (Cr(Ⅲ) and Cr(Ⅵ)) on bentonites was examined. Freundlich and Langmuir isotherm was suggested as the most appropriate type for the two compounds by comparing three different equations. The maximum adsorbance of trivalent is 0.47 mg/g. The influence of some factors such as pH value on the adsorption was investigated, and that of lime and two kind of surfactants (SN-1 and ABSN) on the adsorption was also discussed. |
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| Keywords: | Bentonite Adsorption Chromium compounds Isotherm |
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