2022年 02期

载铁聚合物对水中锑(Ⅴ)的动态吸附

Dynamic Adsorption of Sb(Ⅴ) in Water by Adsorbent Supported with Iron Carrying Polymer


摘要(Abstract):

采用动态吸附实验法,分别考察不同空床接触时间、空床体积、初始进水浓度和进水pH等条件下载铁聚合物吸附剂CS/CA-Fe对锑(Ⅴ)的吸附去除效能。结果表明:CS/CA-Fe对锑(Ⅴ)动态吸附过程的穿透曲线符合逻辑斯谛曲线,空床接触时间越长或空床体积越大,吸附剂利用率越低;初始进水浓度越大,出水达到泄漏浓度的产水量越小;进水pH对锑(Ⅴ)穿透曲线的影响显著,当pH为5.0时,吸附柱出水中锑(Ⅴ)的浓度大于泄漏浓度;自来水中共存离子的竞争作用导致锑(Ⅴ)的穿透时间大幅缩短。

关键词(KeyWords): 锑;载铁聚合物;动态吸附

基金项目(Foundation): 国家自然科学基金项目(51708380)

作者(Author): 闵奇,韩子恒,白仁碧,杨晶晶

DOI: 10.13349/j.cnki.jdxbn.20211112.001

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