| 含铬废革屑负载锆对水中氟的吸附 |
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| 引用本文： | 任涛,廖学品,石碧,曾成华.含铬废革屑负载锆对水中氟的吸附[J].皮革科学与工程,2009,19(3). |
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| 作者姓名： | 任涛 廖学品 石碧 曾成华 |
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| 作者单位： | 1. 四川大学制革清洁技术国家工程实验室,四川,成都,610065
2. 攀枝花学院生物与化学学院,四川,攀枝花,617000 |
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| 基金项目： | 国家科技支撑计划，四川省科技支撑计划，国家自然科学基金重点项目 |
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| 摘 要： | 将锆(IV)负载在含铬废革屑上制备新型氟吸附材料(Zr CrF),并研究了其对水体中氟离子(F-)的吸附特性.结果表明,pH对Zr CrF吸附F-有较大影响,适宜的pH范围为4.0~9.0;当温度为303 K、F-的初始质量浓度为95.0 mg/L、吸附剂用量为1.0 g/L时,Zr CrF对F-的吸附容量为64.1 mg/g,而当吸附剂用量增加到3.0 g/L时,F-的去除率达到99.0%;Zr CrF对F-的吸附等温线符合Freundlich方程,吸附动力学可用拟二级速率方程描述;溶液中共存的SO2-4、NO-3和Cl-基本不影响Zr CrF对F-的吸附,但PO3-4和CO2-3会对吸附产生一定影响.
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| 关 键 词： | 含铬废革屑 负载锆 吸附 氟(F-) |
Adsorption of Fluoride from Aqueous Solution by Zr(IV) Loaded Chromic Leather Waste |
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| REN Tao,LIAO Xue-pin,SHI Bi,ZENG Cheng-hua.Adsorption of Fluoride from Aqueous Solution by Zr(IV) Loaded Chromic Leather Waste[J].Leather Science and Engineering,2009,19(3). |
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| Authors: | REN Tao LIAO Xue-pin SHI Bi ZENG Cheng-hua |
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| Affiliation: | REN Tao1,LIAO Xue-pin1,SHI Bi1,ZENG Cheng-hua 2(1.National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China,2.Biological and Chemical Engineering College,Panzhihua University,Panzhihua 617000,China) |
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| Abstract: | A novel adsorbent,Zr(IV) loaded chromium-containing leather waste(Zr-CrF),was prepared,and its adsorption behaviors to fluoride(F-) were investigated.Experimental results indicated that pH of solution significantly affected the adsorption of Zr-CrF to F-,and the suitable pH range was 4.0-9.0.The adsorption capacity was 64.1 mg/g at 303 K when the initial concentration of F-was 95.0 mg/L and the offer of adsorbent was 1.0 g/L,and the removal extent of F-was 99.0% when the adsorbent dosage was increased to 3.... |
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| Keywords: | chromium-containing leather waste Zr(IV) loaded adsorption fluoride(F-) |
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