KINETIC STUDIES FOR THE ABSORPTION OF ORGANIC MATTER FROM PURIFIED SOLUTION OF ZINC BY COCONUT SHELL ACTIVATED CARBON

被引:0
|
作者
Ma, Aiyuan [1 ,2 ,3 ]
Sun, Chenyu [3 ,4 ]
Li, Guojiang [4 ]
Luo, Yongguang [1 ,2 ,3 ,4 ]
Zheng, Xuemei [1 ,2 ,3 ]
Peng, Jinhui [1 ,2 ,3 ]
Xia, Hongying [1 ,2 ,3 ]
Zhang, Libo [1 ,2 ,3 ]
Liu, Chao [1 ,2 ,3 ]
机构
[1] Yunnan Prov Key Lab Intensificat Met, Kunming 650093, Yunnan, Peoples R China
[2] Minist Educ, Key Lab Unconvent Met, Kunming 6C0093, Yunnan, Peoples R China
[3] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
[4] Yunnan Chihong Zn & Ge Co Ltd, Qujing 655011, Peoples R China
基金
中国国家自然科学基金;
关键词
Organic matter; Coconut shell activated carbon; Adsorption kinetics; Adsorption mechanism; METHYLENE-BLUE; NH3-(NH4)(2)SO4-H2O SYSTEM; MECHANISM; ADSORPTION; SORPTION; HEMIMORPHITE; EQUILIBRIUM; CATALYST; REMOVAL;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, the adsorption characteristics of organic matter from purified solution of zinc was investigated using coconut shell activated carbon, with the aim to remove the organic matter from the solution after zinc hydrometallurgy. The effects of adsorption time on organic matter removal rate were studied. According to the experimental result, the COD and removal rate of organic matter in 'milled solution of zinc were 33.04mg/L and 54.36%, respectively, under the condition of adsorption time of 160min, temperature of 75 degrees C, sample weight of 0.75g/L. The kinetic results showed that the organic matter adsorption onto coconut shell activated carbon followed pseudo-second-order kinetics model well with a coefficient greater than 0.9916. Weber and Morris theory, Boyd dynamic equation analysis showed that external mass transfer is the primary control step.
引用
收藏
页码:303 / 310
页数:8
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