| 脂肪胺浮选捕收剂的光化学降解 |
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| 引用本文： | 梅光军,李莹雪,夏洋.脂肪胺浮选捕收剂的光化学降解[J].北京科技大学学报,2009,31(9). |
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| 作者姓名： | 梅光军 李莹雪 夏洋 |
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| 作者单位： | 武汉理工大学资源与环境工程学院,武汉,430070 |
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| 基金项目： | 国家高技术研究发展计划资助项目(No.2007AA06Z123) |
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| 摘 要： | 对水体中脂肪胺阳离子浮选捕收剂(癸烷基丙基醚胺、十二烷基丙基醚胺、十二胺和十八胺)的降解方法与效果进行了研究. 生物降解性(BOD/CODCr比值)实验研究表明,这四种脂肪胺浮选捕收剂均难以生物降解. UV/H2O2/air氧化法是一种降解脂肪胺浮选捕收剂的有效方法,其降解率高、反应条件温和、操作简易,无二次污染. 降解率大小顺序为:癸烷基丙基醚胺>十二胺>十二烷基丙基醚胺>十八胺,与COD去除率大小顺序一致. 在pH为4.5、起始质量浓度为10 mg·L-1、1%的H2O2作为光催化剂、紫外光照15 min的条件下,癸烷基丙基醚胺的降解率为99.99%,COD去除率为78.06%. 测定了十二烷基丙基醚胺和十八胺两种典型脂肪胺浮选捕收剂模拟废水降解前后的红外吸收谱图,初步探讨了UV/H2O2/air光化学氧化法处理脂肪胺浮选捕收剂模拟废水的降解机理.
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| 关 键 词： | 捕收剂 脂肪胺 选矿废水 光化学降解 |
Photochemical degradation of fatty amine flotation collectors |
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| MEI Guang-jun,LI Ying-xue,XIA Yang School of Resources , Environment Engineering,Wuhan University of Technology,Wuhan ,China.Photochemical degradation of fatty amine flotation collectors[J].Journal of University of Science and Technology Beijing,2009,31(9). |
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| Authors: | MEI Guang-jun LI Ying-xue XIA Yang School of Resources Environment Engineering Wuhan University of Technology Wuhan China |
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| Institution: | MEI Guang-jun,LI Ying-xue,XIA Yang School of Resources , Environment Engineering,Wuhan University of Technology,Wuhan 430070,China |
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| Abstract: | The photochemical degradation of four typical fatty amine flotation collectors,decyl propyl ether amine,dodecyl propyl ether amine,laurylamine,and stearylamine,in water was studied.The results of biodegradation tests(the ratio of BOD/CODCr) showed the four flotation collectors were difficult to be biodegraded.The UV/H2O2/air oxidation method was suitable for degrading fatty amine flotation collectors.This method was significant with advantages such as high degradation rate,mild reaction conditions,easy oper... |
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| Keywords: | collectors fatty amine flotation wastewater photochemical degradation |
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