北川埃洛石黏土对Sr、Co、Cs的吸附性能研究
The study of the Sr、Co、Cs oions adsorption capability of halloysite at the Beichuan of Sichuan province
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摘要: 对北川埃洛石吸附Sr、Co、Cs的性能进行了实验研究,结果表明:①埃洛石对Sr2+、Cs2+、Co2+的吸附能力随着pH值增大而增大;②埃洛石对Sr2+、Cs2+、Co2+的吸附随着固液比的增大,吸附率逐渐增大,单位质量吸附量明显减小;③埃洛石对Sr2+、Cs2+、Co2+的吸附过程中,当吸附剂量相同时,其单位质量吸附量随初始浓度的升高而增加,吸附率则随初始浓度的升高而减小;④埃洛石对Sr2+、Cs2+、Co2+的吸附,主要靠断键产生的可变负电荷和分子吸附。Abstract: The Sr、Co、Cs oions adsorption capability of the halloysite at the Beichuan of Sichuan Province are studied.The results show that:① the Sr、Co、Cs oions adsorption capability of the halloysite increases with pH of solution;② the Sr、Co、Cs oions adsorption ratio of the halloysite increases and adsorption capability decreases with adsorbent;③the adsorption capability of the halloysite to Sr、Co、Cs oions increases and adsorption ratio decreases with initial concentration of Sr2+、Co2+、Cs2+;④ the adsorption of the halloysite to Sr、Co、Cs oions are mainly belong to broken bond charge adsorption and molecule adsorption.
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