[1]彭蕾,张其武,刘心中,等.ZnCl2催化污泥活性炭的正交实验及热动力学分析[J].福建工程学院学报,2014,12(06):551-556.[doi:10.3969/j.issn.1672-4348.2014.06.009]
　Peng Lei,Zhang Qiwu,Liu Xinzhong,et al.Orthogonal experiment and thermodynamical analysis ofZnCl2 catalyzed sludge activated carbon[J].Journal of FuJian University of Technology,2014,12(06):551-556.[doi:10.3969/j.issn.1672-4348.2014.06.009]
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ZnCl2催化污泥活性炭的正交实验及热动力学分析()
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福建工程学院学报[ISSN:2097-3853/CN:35-1351/Z]

卷:
第12卷
期数:
2014年06期
页码:
551-556
栏目:
出版日期:
2015-01-25

文章信息/Info

Title:
Orthogonal experiment and thermodynamical analysis ofZnCl2 catalyzed sludge activated carbon
作者:
彭蕾; 张其武; 刘心中; 翁晴; 刘惠萍; 余根鼎
福建工程学院生态环境与城市建设学院
Author(s):
Peng Lei;  Zhang Qiwu;  Liu Xinzhong;  Weng Qing;  Liu Huiping;  Yu Gending
College of Ecological Environment and Urban Construction, Fujian University of Technology
关键词:
污泥;  活性炭;  正交实验;  热动力学;  ZnCl2
Keywords:
sewage sludge;  activated carbon;  orthogonal experiment;  thermodynamics;  ZnCl2
分类号:
X703
DOI:
10.3969/j.issn.1672-4348.2014.06.009
文献标志码:
A
摘要:
以城市污水厂脱水污泥为原料，采用 ZnCl2 活化法制备污泥活性炭，以品红吸附值及比表面积为评价指标设计正交实验。结果表明：主要影响因素为热解温度，其次是 ZnCl2 浓度，浸泡时间及固液比的影响较小。最佳制备条件为：热解温度 550 ℃， ZnCl2 浓度 3mol/L ，浸泡时间为 5h ，固液比 1:3 。采用 Coats-Redfern 积分法对 ZnCl2 活化后的污泥热失重过程中 450 ℃ -650 ℃温度段进行分析，该温度段在反应级数为 2 时方程拟合线性较好。反应活化能为 146.04 KJ/mol ，频率因子为 3.95 ×107 s-1 ，动力学方程为： 。
Abstract:
Sludge activated carbon was prepared by ZnCl2 activation using dewatered sludge of a municipal wastewater treatment plant as the raw material. An orthogonal test was conducted by using the adsorption property of fuchsin and specific surface area as the evaluation indicators. The main influential factor of preparing the sludge activated carbon is pyrolysis temperature, followed by the concentration, the soaking time of the activator and the solid-liquid ratio. The optimum preparation conditions were pyrolysis temperature of 550 ℃ , ZnCl2 concentration of 3 mol/L, soaking time of 5h, and solid-liquid ratio of 1:3, respectively. The integral method of Coats-Redfern was employed to analyse the pyrolysis process of the sludge activated by ZnCl2 at the temperature range of 450 ℃ ~650 ℃ . A kinetic equation of was presented. The results indicate that the linearity fits well during the temperature range when n=2 with the activation energy and the frequency factor being 146.04 KJ/mol and 3.95×107 s-1, respectively.

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更新日期/Last Update: 2014-12-25