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| 乳化液膜体系去除电解锰废水中的Mn2+ | |
| 引用本文： | 王强强,成应向,戴友芝,向仁军,李瑾.乳化液膜体系去除电解锰废水中的Mn2+[J].环境工程学报,2012,6(3):811-816. |
| 作者姓名： | 王强强 成应向 戴友芝 向仁军 李瑾 |
| 作者单位： | 1. 湘潭大学化工学院,湘潭411105／湖南省环境保护科学研究院,长沙410004／水污染控制技术湖南省重点实验室,长沙410004 2. 湖南省环境保护科学研究院,长沙410004／水污染控制技术湖南省重点实验室,长沙410004 3. 湘潭大学化工学院,湘潭,411105 4. 湖南省环境保护科学研究院,长沙,410004 |
| 基金项目： | 国家“水污染控制与治理”科技重大专项（2009ZX07212-001）；湖南省环保科技重点项目（2009sk4013） |
| 摘 要： | 采用乳化液膜法处理电解锰废水,考察制乳条件和提取条件对去除效果的影响。研究结果表明最佳制乳条件为:4%(V/V)span-80做表面活性剂,3%二(2-乙基己基)磷酸酯做载体,柴油做膜溶剂,用NaOH调节内水相pH为12,制乳时间为10 min,油内比2∶1;最佳提取条件:外水相pH为6～7、乳水比1∶10、提取时间10 min。制得的乳化液膜对电解锰废水中的Mn2+去除率可高达99.99%,出水Mn2+浓度低于2mg/L,实现水质达标排放。 |
| 关 键 词： | 乳化液膜 电解锰 废水 Mn2+ |
Removal of Mn2+ from electrolytic manganese wastewater by liquid emulsion membrane system |
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| Wang Qiangqiang,Cheng Yingxiang,Dai Youzhi,Xiang Renjun and Li Jin.Removal of Mn2+ from electrolytic manganese wastewater by liquid emulsion membrane system[J].Techniques and Equipment for Environmental Pollution Control,2012,6(3):811-816. | |
| Authors: | Wang Qiangqiang Cheng Yingxiang Dai Youzhi Xiang Renjun and Li Jin |
| Institution: | 2.3 (1.College of Chemical Industry Engineering,Xiangtan University,Xiangtan 411105,China; 2.Hunan Research Academy of Environment Science,Changsha 410004,China; 3.Hunan Key Laboratory of Water Pollution Control Technology,Changsha 410004,China) |
| Abstract: | Liquid emulsion membrane system was used to treat manganese wastewater.The optimum membrane composition and the extraction condition which affected the effects were studied.The results showed that under the conditions of 4% span-80(V/V) as surfactant,3% of the carrier,diesel as membrane solvent,regulating water pH to 12 with sodium hydroxide,emulsification time of 10 min,ratio of emulsion oil phase to water of 2∶ 1,ratio of emulsion to wastewater of 1∶ 10,extraction time of 10 min,the removal rate of Mn was over 99.99%.The concentration of Mn2+ in effluent was less than 2 mg/L,which met the environmental drainage standard. |
| Keywords: | emulsion membrane electrolytic manganese wastewater Mn2＋ |
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