| 粉末活性炭对两种染料的吸附动力学研究 |
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| 引用本文： | 王晓青,张龙,刘汉湖,朱文杰.粉末活性炭对两种染料的吸附动力学研究[J].徐州工程学院学报,2010(3):51-55. |
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| 作者姓名： | 王晓青 张龙 刘汉湖 朱文杰 |
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| 作者单位： | [1]中国矿业大学江苏省资源环境信息工程重点实验室,江苏徐州221116 [2]江苏省环境科学研究院,南京210036 [3]山东省庆云县庆云镇政府,山东德州253700 |
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| 基金项目： | 国家重大科技“水体污染控制与治理”资助项目（2008ZX07313-005 2008ZX07101-003-005） |
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| 摘 要： | 研究了粉末活性炭从水溶液吸附两种染料（活性艳蓝KN-R、分散深蓝S-3BG）的吸附特性,并从动力学角度探讨了吸附机理.结果表明,相同条件下粉末活性炭对活性艳蓝KN-R的平衡吸附量大于分散深蓝S-3BG;伪二级动力学模型可以精确描述两种染料在粉末活性炭上的吸附动力学行为;此外,研究表明颗粒内扩散过程是染料吸附速率的控制步骤,但不是唯一的速率控制步骤,吸附速率同时还受颗粒外扩散过程的控制.
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| 关 键 词： | 粉末活性炭 活性艳蓝KN-R 分散深蓝S-3BG 吸附动力学 |
Studies on the Adsorption Kinetics in Process of Two Dyes Adsorbed by Powder Activated Carbon |
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| WANG Xiao-qing,ZHANG Long,LIU Han-hu,ZHU Wen-jie.Studies on the Adsorption Kinetics in Process of Two Dyes Adsorbed by Powder Activated Carbon[J].Journal of Xuzhou Istitute of Technology,2010(3):51-55. |
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| Authors: | WANG Xiao-qing ZHANG Long LIU Han-hu ZHU Wen-jie |
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| Affiliation: | 1.Jiangsu Key Laboratory of Resources and Environmental Information Engineering,China University of Mining and Technology,Xuzhou 221116,China; 2.Jiangsu Provincial Academy of Environmental Science,Nanjing 210036,China; 3.Government of Qingyun Town,Dezhou 253700,China) |
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| Abstract: | The adsorption characters of two dyes（Reactive Brilliant Blue KN-R;Disperse Deep Blue S-3BG）on powder activated carbon in aqueous solution were studied.The adsorption mechanism was developed in view of adsorption kinetics.The results show that the equilibrium adsorption capacity of Reactive Brilliant Blue KN-R is larger than Disperse Deep Blue S-3BG under the same conditions,and both the adsorption behavior of two dyes could be described by pseudo second-order kinetic mode1accurately.Moreover,the adsorption rate of the powder activated carbon to the dyes is not only controlled by intra-particle diffusion but also by extra-particle diffusion process. |
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| Keywords: | powder activated carbon Reactive Brilliant Blue KN-R Disperse Deep Blue S-3BG adsorption kinetics |
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