文档介绍：环境工程
30 2011 年 8 月第 29 卷第 4 期
几种吸附材料对磷吸附性能的对比研究*
辛杰1,2 裴元生 2 王颖2 陈晓春1
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1. 北京化工大学化学工程学院北京 100029 2. 北京师范大学环境学院水环境模拟国家重点实验室北京 100875
摘要�针对白洋淀府河水体磷污染问题,研究了天然沸石、硅藻土、粉煤灰、赤泥、铁铝泥五种材料对磷的吸附性能,并
利用盐酸改性铁铝泥、铁盐改性粉煤灰和赤泥,对比研究了改性后材料对磷的吸附能力,探讨了水体 pH 值和其他离
子对其吸附性能的影响。结果表明�沸石、硅藻土、粉煤灰、赤泥对磷的吸附符合一级动力学模型,而铁铝泥和改性后
材料吸附磷符合准二级动力学模型�改性前后各材料吸附磷等温线均符合 Langmuir 方程。各材料吸附磷能力为�改
性赤泥> 改性粉煤灰> 改性铁铝泥> 铁铝泥> 赤泥和粉煤灰> 沸石> 硅藻土,改性材料吸附磷能力明显提高。溶液
pH 值显著影响改性材料吸附磷效果,pH 为 7 时吸附量最大�硫酸根和碳酸氢根离子抑制磷的吸附,氯离子和硝酸根
离子没有明显影响。
关键词�磷�吸附�改性�影响因素
CONTRASTIVE STUDY ON PHOSPHORUS ADSORPTION OF SEVERAL ADSORBENTS
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Xin Jie1 2 Pei Yuansheng2 Wang Ying2 Chen Xiaochun1
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1. College of Chemical Engineering Beijing Univeisity of Chemical Technology Beijing 100029 China
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2. State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing 100875 China
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Abstract The adsorption capacity of natural zeolite fly ash red mud diatomaceous earth iron-aluminum mud was
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researched and the phosphorus adsorption of the modified adsorbents iron-aluminum mud modified with hydrochloric acid fly
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ash and red mud modified with ferric chloride pared in this paper. The effects of pH and other ions in water on
phosphorus adsorption by the modified adsorbents were investigated. The results indicate that phosphorus adsorption by natural
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