一种新型复合除砷材料的制备及其性能  

Preparation and performance of a new composite material for removal of arsenic

作　　者：徐伟[1,2] 李长海[2,3] 贾冬梅[2,3] 刘学文 

机构地区：[1]长春工业大学化学工程学院,长春130012 [2]滨州学院化工技术研究中心,滨州256603 [3]滨州市液态污染物综合利用技术重点实验室,滨州256603

出　　处：《环境工程学报》2013年第5期1611-1615,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(21276027);山东省自然科学基金资助项目(ZR2010BL028);滨州市科学技术发展计划项目(200919;200924)

摘　　要：将锆的水合氧化物固载于大孔螯合树脂D401上制备出一种新型除砷材料,并研究了不同实验条件下复合吸附剂D401-Zr对水溶液中As(V)的吸附性能。研究结果表明,在pH<5.2时D401-Zr对As(V)都具有较强的吸附性能;其吸附等温线与Langmuir吸附模型具有较高的吻合度;吸附动力学研究表明,D401-Zr对砷的吸附均遵循二级动力学方程;竞争吸附实验表明,与SO24-、Cl-共存时,D401-Zr对砷的去除率大于90%,而与PO34-、F-竞争离子共存时,其去除率明显下降。The hydrated zirconium oxide was loaded successfully onto the D401 chelating resin to obtain a new sorbent named D401-Zr. The removal of As（V） by using D401-Zr under different experiment conditions was studied. The results indicated that D401-Zr has a good adsorption capacity to As（V） at pH 〈 5.2. The static ex-periment data also demonstrated that the adsorption isotherm presented a good fitting to Langmuir model. The ki-netic data of the D401-Zr adsorption to As（V） could be described by the Lagergren second-order rate equation well The removal rate of D401-Zr to As（V） stil/reached more than 90% in the presence of the competing anions such as SO4^2-and Cl^-, but PO4^3- and F^- had a strong inhibition on As （V）, which would cause the removal rate to decrease clearly.

关 键 词：除砷 D401-Zr 锆 吸附剂 竞争离子 

分 类 号：X703.1[环境科学与工程—环境工程]