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好氧污泥对活性艳兰KN-G的吸附特性研究
引用本文:阮海英,黄满红,陈亮,陈东辉.好氧污泥对活性艳兰KN-G的吸附特性研究[J].环境工程学报,2010,4(12):2766-2770.
作者姓名:阮海英  黄满红  陈亮  陈东辉
作者单位:东华大学环境科学与工程学院, 上海 201620,东华大学环境科学与工程学院, 上海 201620,东华大学环境科学与工程学院, 上海 201620,东华大学环境科学与工程学院, 上海 201620
基金项目:上海市重点学科建设项目(B604);东华大学溢达棉纺织染整研究基金项目(2005RD001,11307087);广东省教育部产学研结合项目(2008B090500038)
摘    要:实验研究了活性艳兰KN-G在好氧污泥上的吸附等温线和吸附动力学,考察了pH对好氧污泥吸附活性艳兰KN-G的影响。结果表明,好氧污泥对活性艳兰KN-G的吸附Freund lich和Langmu ir方程准确性较高,但是从模型的准确性和稳定性两方面考虑,Freund lich方程更适合描述好氧污泥吸附活性艳兰KN-G。应用伪一级、伪二级反应动力学和颗粒内扩散方程模型对实验数据进行验证,表明好氧污泥吸附活性艳兰KN-G更符合伪二级反应动力学模型。pH值对活性艳兰KN-G的吸附影响很大,pH值与吸附量呈负相关。

关 键 词:好氧污泥  活性艳兰KN-G  吸附

Study on adsorptive properties of aerobic sludge to reactive turquoise blue KN-G
Ruan Haiying,Huang Manhong,Chen Liang and Chen Donghui.Study on adsorptive properties of aerobic sludge to reactive turquoise blue KN-G[J].Techniques and Equipment for Environmental Pollution Control,2010,4(12):2766-2770.
Authors:Ruan Haiying  Huang Manhong  Chen Liang and Chen Donghui
Institution:College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China,College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China,College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China and College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China
Abstract:Reactive turquoise blue KN-G (RTB) adsorption on aerobic sludge (AS) was studied through tests. It was found that the adsorption isotherm of RTB on AS satisfied both Langmuir and Freundlich models, while an evaluation on both accuratity and stability indicates that the Freundlich equation was the best. The adsorption of RTB on AS was analyzed using pseudo first-order, pseudo second-order adsorption and intrapartical diffusion kinetic models, and the pseudo second-order kinetic model could best describe the adsorption. The impacts of pH on RTB adsorption were also investigated. The experimental results indicated that the initial pH value was the important parameter affecting the adsorption of RTB, and the adsorption capacity of aerobic sludge decreased with the increase of pH value.
Keywords:aerobic sludge  reactive turquoise blue KN-G  adsorption
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