| 硝酸铈改性赤泥制备除磷吸附剂 |
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| 引用本文： | 朱丽,李晔,张猛,马啸.硝酸铈改性赤泥制备除磷吸附剂[J].化工环保,2012,32(1):81-84. |
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| 作者姓名： | 朱丽 李晔 张猛 马啸 |
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| 作者单位： | 武汉理工大学资源与环境工程学院,湖北武汉,430070 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项子专题项目，武汉市科技攻关计划项目 |
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| 摘 要： | 用六水硝酸铈改性赤泥并处理含磷废水.实验结果表明:当硝酸铈质量分数为0.45％、焙烧温度为500℃时,制备的吸附剂的吸附性能最好;用该吸附剂处理含磷废水,当初始废水pH为3、振荡时间为80 min时,废水TP去除率约为95％,废水中磷质量浓度为0.41 mg/L,达到GBI8918-2002《城镇污水处理厂污染物排放标准》中的一级标准.该吸附剂的吸附过程符合Langmuir吸附模型.
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| 关 键 词： | 赤泥 硝酸铈 磷 吸附剂 废水处理 |
Preparation of Phosphorus Removing Adsorbent from Cerium Nitrate-modified Red Mud |
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| Zhu Li
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Li Ye
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Zhang Meng
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Ma Xiao.Preparation of Phosphorus Removing Adsorbent from Cerium Nitrate-modified Red Mud[J].Environmental Protection of Chemical Industry,2012,32(1):81-84. |
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| Authors: | Zhu Li Li Ye Zhang Meng Ma Xiao |
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| Institution: | (School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan Hubei 430070,China) |
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| Abstract: | Red mud was modified with cerium nitrate hexahydrate and used as adsorbent in the treatment of phosphorus-containing wastewater.The experimental results show that:When the mass fraction of cerium nitrate is 0.45% and the calcination temperature is 500 ℃,the adsorption capability of the adsorbent is the best;When the initial wastewater pH is 3 and the shaking time is 80 min,the removal rate of TP in the wastewater is about 95%,and the mass concentration of phosphorus in the treated wastewater is 0.41 mg/L,which can meet the first grade discharge standard of GB18918-2002.The adsorption process accords with Langmuir adsorption model. |
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| Keywords: | red mud cerium nitrate phosphorus adsorbent wastewater treatment |
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