对732强酸性阳离子交换树脂再生铬酸盐钝化液进行了探索.研究了交换处理时间、溶液初始pH、Zn (Ⅱ)初始浓度及树脂用量对树脂吸附的影响,并考察了树脂的脱附和再生性能.结果表明,该树脂对Zn(Ⅱ)的吸附速率快,30 min达到吸附平衡,最佳吸附pH为3～6.用树脂再生钝化液不会对Cr(Ⅵ)浓度产生影响,能达到“去锌保铬”的目的.该树脂对Zn (Ⅱ)的吸附符合Langmuir吸附等温模型,为单分子层吸附,具有吸附饱和性,饱和吸附量约为85.6 mg/g.
参考文献
| [1] | GAL(A)N B;CALZADA M;ORTIZ I .Separation and concentration of Cr(Ⅵ) from ground waters by anion exchange using Lewatit MP-64:Mathematical modelling at acidic pH[J].SOLVENT EXTRACTION AND ION EXCHANGE,2006,24(04):621-637. |
| [2] | Fethiye Gode;Erol Pehlivan .Removal of chromium(Ⅲ) from aqueous solutions using Lewatit S 100: The effect of pH, time, metal concentration and temperature[J].Journal of Hazardous Materials,2006(2):330-337. |
| [3] | Demirbas A;Pehlivan E;Gode F;Altun T;Arslan G .Adsorption of Cu(II), Zn(II), Ni(II), Pb(II), and Cd(II) from aqueous solution on amberlite IR-120 synthetic resin[J].Journal of Colloid and Interface Science,2005(1):20-25. |
| [4] | TILLMAN G M.Water Treatment:Troubleshooting and Problem Solving[M].Boca Raton:CRC Press LLC,1996 |
| [5] | Removal Of Hexavalent Chromium From Aqueous Solutions By D301, D314 And D354 Anion-exchange Resins[J].Journal of hazardous materials,2009(2/3):900-906. |
| [6] | Xing Xu;Bao-Yu Gao;Qin-Yan Yue .Preparation of new types of anion exchange resins from agricultural by-products and their utilization in the removal of various toxic anions from solutions[J].Chemical engineering journal,2011(1):104-111. |
| [7] | 李红艳,李亚新,李尚明.离子交换技术在重金属工业废水处理中的应用[J].水处理技术,2008(02):12-15,20. |
| [8] | 曾君丽,邵友元,易筱筠,植彩贞.D301弱碱性阴离子交换树脂吸附Cr（Ⅵ）的研究[J].环境科学与技术,2012(08):10-15,25. |
| [9] | S. Rengaraj;Cheol Kyun Joo;Younghun Kim;Jongheop Yi .Kinetics of removal of chromium from water and electronic process wastewater by ion exchange resins: 1200H, 1500H and IRN97H[J].Journal of hazardous materials,2003(2/3):257-275. |
| [10] | WONG C W;BARFORD J P;CHEN G H et al.Kinetics and equilibrium studies for the removal of cadmium ions by ion exchange resin[J].Journal of Environmental Chemical Engineering,2014,2(01):698-707. |
| [11] | ALY(U)Z B;VELI S .Kinetics and equilibrium studies for the removal of nickel and zinc from aqueous solutions by ion exchange resins[J].Journal of Hazardous Materials,2009,167(1/3):482-488. |
| [12] | 杨金杯,韩淑萃,余美琼,邱挺.001×14.5强酸性树脂对铬（Ⅲ）的吸附性能[J].中国有色金属学报,2012(06):1791-1797. |
| [13] | 黄晓霞,刘茹.201×4强碱性阴离子交换树脂吸附Cr（VI）的机理研究[J].广东化工,2010(05):86-89. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%