| 活性炭对溶解性有机氮类化合物(DON)的吸附特性研究 |
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| 引用本文： | 许金丽,古励,刘冰,张会宁,于鑫.活性炭对溶解性有机氮类化合物(DON)的吸附特性研究[J].给水排水,2011(Z1). |
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| 作者姓名： | 许金丽 古励 刘冰 张会宁 于鑫 |
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| 作者单位： | 中国科学院城市环境研究所; |
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| 基金项目： | 国家自然科学基金(50678080); 中国科学院百人计划项目; 知识创新工程重要方向资助项目(KZCX2-YW-452) |
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| 摘 要： | 采用静态吸附法研究了活性炭对水中溶解性有机氮(DON)的吸附能力和吸附特性,试验结果表明:在椰壳、桃核、木质和煤质四种活性炭中,桃核活性炭对DON亲和性与吸附容量最高;中性偏碱性的pH环境更利于DON在活性炭上的吸附;不同温度下的动力学研究表明升温不利于DON的吸附;热力学参数ΔH<0,ΔG>0表明活性炭对DON的吸附属于非自发的放热反应,为化学吸附。
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| 关 键 词： | 活性炭 溶解性有机氮 吸附 饮用水 |
Adsorption characteristics of dissolved organic nitrogen on granular activated carbons |
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| Xu Jinli,Gu Li,Liu Bing,Zhang Huining,Yu Xin.Adsorption characteristics of dissolved organic nitrogen on granular activated carbons[J].Water & Wastewater Engineering,2011(Z1). |
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| Authors: | Xu Jinli Gu Li Liu Bing Zhang Huining Yu Xin |
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| Affiliation: | Xu Jinli,Gu Li,Liu Bing,Zhang Huining,Yu Xin(Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China) |
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| Abstract: | Static adsorption of dissolved organic nitrogenous compounds(DON) by activated carbons(ACs) made of different materials were investigated to find the suitable adsorbent and their adsorbing characteristics in DON removal.The results showed that the walnut shell AC presents highest adsorption capacity and affinity among the selected ACs;Neutral and basic conditions are most favored in DON adsorption;Kinetics studies in different temperature showed that temperature rise was not conductive to the adsorption of ... |
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| Keywords: | Activated carbon Dissolved organic nitrogenous compounds Adsorption Drinking water |
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