复配壳聚糖对废水中Cu^(2+)的动态吸附研究  

Study on Dynamic Adsorption of Cu^(2+) in Waste Water by Compounded Chitosan

作　　者：宋颖韬[1] 贾晟哲 党明岩[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110159 [2]大连理工大学化工学院,辽宁大连116024

出　　处：《电镀与精饰》2017年第6期1-4,共4页Plating & Finishing

基　　金：国家自然科学基金资助项目(51004072)

摘　　要：将壳聚糖与活性炭复配,并进行交联和接枝改性,制得复配壳聚糖吸附剂,并用于动态吸附废水中的Cu^(2+),通过穿透曲线考察了主要操作条件对吸附性能的影响。结果表明,增大溶液初始浓度及溶液流量,吸附剂的穿透吸附量增加,穿透时间减少,穿透曲线前移;增加吸附剂填充量,穿透吸附量及穿透时间增加,穿透曲线更加平缓。采用Thomas模型对实验数据进行拟合分析,结果表明,复配壳聚糖对Cu^(2+)的动态吸附行为符合Thomas模型。In this paper,the compounded chitosan adsorbent was prepared by compounding the chitosan with activated carbon, and then crosslinking and graft modifying the compounded chitosan, which was used for dynamic adsorbing the Cu^2＋ in waste water; also, influences of main operating conditions on the adsor- bing performance were investigated through penetration curve. Results showed that penetration absorbing quantity of the absorbent would increase with the increasing of initial concentration and flow of the solu- tion, and the penetration curve would move forward with the penetration time reducing; when the absorb- ing dosage increased, the penetration absorbing quantity and penetration time would increase, and the pen- etration curve became more smooth. Through experimental data fitting analysis by Thomas model, it was showed that dynamic adsorption behavior of the compounded chitosan for Cu^2＋ was in accord with the Thomas model.

关 键 词：复配壳聚糖 活性炭 动态吸附 CU^2+ Thomas模型 

分 类 号：X703[环境科学与工程—环境工程]