弱碱性阴离子交换树脂对于废水中锑吸附效果的研究  

Study on the Adsorption Effect of Weakly Basic Anion Exchange Resin on Antimony in Wastewater

作　　者：魏家红[1] 宋卫中[2] 崔鹏[1] WEI Jia-hong;SONG Wei-zhong;CUI Peng(School of Environmental Engineering,Yellow River Conservancy Technical Institute,,Kaifeng 475004,China;Department of Pharmacy,Henan University,Kaifeng 475004,China)

机构地区：[1]黄河水利职业技术学院环境工程学院,河南开封475004 [2]河南大学药学院生药教研室,河南开封475004

出　　处：《塑料科技》2020年第7期35-38,共4页Plastics Science and Technology

基　　金：国家自然科学基金(21272056);河南省教育科学“十三五”规划2019年度一般课题([2019]-JKGHYB-0505);开封市科技发展计划项目(1903107)。

摘　　要：通过实验法研究了D301R树脂在不同初始pH值及不同阴离子的条件下对Sb(Ⅲ)和Sb(Ⅴ)的吸附量,并进行了吸附动力学分析。结果表明:D301R树脂对Sb(Ⅲ)和Sb(Ⅴ)的吸附量随pH值的增加逐渐减小;NO3-、SO42-、Cl-、PO43-等竞争性阴离子对Sb(Ⅲ)吸附结果影响不大,但SO42-、PO43-可以与Sb(OH)6-竞争吸附位点从而降低对Sb(Ⅴ)吸附量。动力学研究表明,Sb(Ⅲ)和Sb(Ⅴ)均在24 h内达到吸附平衡;Sb(Ⅲ)和Sb(Ⅴ)的吸附均为自发吸热,吸附情况更趋于单分子层吸附。The adsorption capacity of D301 R resin to Sb(Ⅲ)and Sb(Ⅴ)under different initial pH values and different anions was studied by experimental method,and the adsorption kinetics was analyzed.The results showed that the adsorption amount of Sb(Ⅲ)and Sb(Ⅴ)by D301 R resin gradually decreased with the increase of pH;competitive anions such as NO3-,SO42-,Cl-,PO43-had little effect on the adsorption results of Sb(Ⅲ),but SO42-and PO43-could compete with Sb(OH)6-for adsorption sites and reduce the amount of Sb(Ⅴ)adsorption.Kinetic studies showed that both Sb(Ⅲ)and Sb(Ⅴ)reached adsorption equilibrium within 24 h;both Sb(Ⅲ)and Sb(Ⅴ)adsorption was spontaneously endothermic,and the adsorption situation tended to be monolayer Adsorption.

关 键 词：D301R树脂 吸附量 Sb(Ⅲ) Sb(Ⅴ) 

分 类 号：TM215.1[一般工业技术—材料科学与工程]