| 水中三种典型含氮有机物的活性炭吸附特性研究 |
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| 引用本文： | 沈开源,徐斌,夏圣骥,李伟,高乃云,覃操.水中三种典型含氮有机物的活性炭吸附特性研究[J].给水排水,2011(Z1). |
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| 作者姓名： | 沈开源 徐斌 夏圣骥 李伟 高乃云 覃操 |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室长江水环境教育部重点实验室; |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目(2008AA06Z302); 国家自然科学基金资助项目(51078280,50808134); 上海市青年科技启明星计划项目(11QA1407000) |
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| 摘 要： | 利用三种类型活性炭(粉末炭PAC、活性炭纤维ACF、颗粒活性炭GAC),对三种典型含氮有机物(色氨酸、腺嘌呤和三聚氰胺)的吸附容量和吸附速率开展了研究。研究表明:PAC与ACF对色氨酸具有较高的吸附容量,吸附等温线符合Langmuir模型,拟二级动力学模型能够很好反应吸附速率变化;GAC吸附色氨酸等温线符合BET模型,其吸附速率变化符合内扩散模型。ACF与GAC对腺嘌呤均具有较高的吸附容量,其吸附等温线符合Freundlich模型,拟二级动力学能较好地反应了吸附速率的变化;而PAC对腺嘌呤的吸附更符合Langmuir模型,吸附速率变化同样符合拟二级模型。三种活性炭对三聚氰胺的吸附均大致符合BET模型,在低于液相饱和浓度条件下,三种炭的三聚氰胺吸附容量均较小,三种炭吸附三聚氰胺速率的变化都符合拟二级动力学模型。
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| 关 键 词： | 色氨酸 腺嘌呤 三聚氰胺 吸附等温线 吸附速率 |
Adsorption characteristics of three nitrogen-containing organic matters in water by different activated carbons |
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| Shen Kaiyuan,Xu Bin,Xia Shengji,Li Wei,Gao Naiyun,Qin Cao.Adsorption characteristics of three nitrogen-containing organic matters in water by different activated carbons[J].Water & Wastewater Engineering,2011(Z1). |
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| Authors: | Shen Kaiyuan Xu Bin Xia Shengji Li Wei Gao Naiyun Qin Cao |
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| Affiliation: | Shen Kaiyuan,Xu Bin,Xia Shengji,Li Wei,Gao Naiyun,Qin Cao(State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Key Laboratory of Yangtze Aquatic Environment,Ministry of Education,Shanghai 200092,China) |
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| Abstract: | In this paper,three types of activated carbon(carbon powder PAC,activated carbon fiber ACF,granular activated carbon GAC) were used to investigate the adsorption capacity and adsorption rate of three typical nitrogen-containing organic compounds including L-tryptophan,adenine and melamine.PAC and ACF shows relatively a high adsorption capacity for the tryptophan and the adsorption isotherms conform to with Langmuir model.The pseudo-second-order equation shows the best fitting for adsorption kinetics in tryp... |
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| Keywords: | Tryptophan Adenine Melamine Adsorption isotherms Adsorption rate |
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