水资源保护Issue(1)：87-90,4.DOI:10.3969/j.issn.10046933.2013.01.020
花生壳对模拟废水中 Cr（Ⅵ）的动态吸附特性研究
Experimental study on removing Cr(Ⅵ) from simulated wastewater by dynamic absorption with peanut shells
摘要
Abstract
The treatment of simulated wastewater , which had a concentration of Cr (Ⅵ) of 20 mg/L, with peanut shells was studied through dynamic absorption experiments under different conditions .The results show that the removal rate of Cr(Ⅵ) reached 99.08% when the diameter was 1.6 to 2.5 mm, the adsorbent dosage of peanut shells was 5.0 g, the optimum condition was pH =1.0, and the flow rate was 3.0 mL・ min-1 .The concentration of Cr( Ⅵ) was 0.184 mg /L after adsorption, meeting the Integrated Wastewater Discharge Standard ( GB8978-1996).The model fitting is explained in the paper.The Thomas model can well reflect the characteristics of the adsorption process, and the saturated adsorption capacity of peanut shells was 9.4 mg/g.It can be seen from the dynamic adsorption breakthrough curve that the penetrative point and the failure point were reached at 219 min and 1312 min, respectively.关键词
吸附/花生壳/模拟废水/Cr(Ⅵ)Key words
adsorption/peanut shell/simulated wastewater/Cr(Ⅵ)分类
资源环境引用本文复制引用
鲁秀国,钟璐,孟锋..花生壳对模拟废水中 Cr（Ⅵ）的动态吸附特性研究[J].水资源保护,2013,(1):87-90,4.基金项目
国家自然科学基金(51168013) （51168013）
