| 壳聚糖改性沸石吸附废水中的苯酚 |
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| 引用本文： | 李增新,孟韵,梁强,王彤.壳聚糖改性沸石吸附废水中的苯酚[J].生态环境,2008,17(6). |
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| 作者姓名： | 李增新 孟韵 梁强 王彤 |
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| 作者单位： | 青岛大学师范学院化学系,山东,青岛,266071 |
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| 基金项目： | 青岛市科技发展计划项目
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| 摘 要： | 开发新型低成本苯酚吸附剂是含酚废水处理技术的重点.采用90%脱乙酰度壳聚糖制备改性沸石,在与天然沸石对比的基础上,研究了改性沸石去除废水中的效果.并对影响去除率的主要因素,包括壳聚糖与斜发沸石质量比、废水pH值,吸附时间,改性沸石用量,苯酚的质量浓度等进行研究.通过正交试验确定吸附废水中苯酚最佳工艺条件是:壳聚糖与沸石质量比为1∶20.沸石-壳聚糖颗粒吸附剂用量为12 g·L-1,废水中苯酚质量浓度不大于40mg·L-1,pH值为4～6,吸附平衡时间为35 min,苯酚去除率为90%;吸附适合用Langmuir吸附等温方程来模拟.
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| 关 键 词： | 环境工程 斜发沸石 壳聚糖 吸附剂 苯酚 |
Adsorption of phenol in wastewater with modified zeolite-chitosan adsorbent |
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| Li Zengxin,Meng Yun,Liang Qiang,Wang Tong.Adsorption of phenol in wastewater with modified zeolite-chitosan adsorbent[J].Ecology and Environmnet,2008,17(6). |
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| Authors: | Li Zengxin Meng Yun Liang Qiang Wang Tong |
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| Institution: | Li Zengxin,Meng Yun,Liang Qiang,Wang Tong Department of Chemistry,Teachers College of Qingdao University,Qingdao,Sh,ong 266071,China |
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| Abstract: | Although non- metallic mines have been used widely as water amender,there are few reports for remedy contaminated waste water by modified chitosan-zeolite especially for phenol contaminated waste water. For the purpose of providing a new way to control and remedy phenol contaminated waste water, the equilibrium adsorption isotherm experiments were conducted to investigate the effect of the adsorption behaviors toward phenol in solution on the compound adsorbent. The compound adsorbent was prepared with the ... |
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| Keywords: | environment engineering zeolite chitosan adsorbent phenol |
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