| 甲胺生产废水中甲醇的资源化研究 |
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| 引用本文： | 程家迪,高良敏,黄周满,汪桂林.甲胺生产废水中甲醇的资源化研究[J].环境科学与技术,2009,32(8). |
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| 作者姓名： | 程家迪 高良敏 黄周满 汪桂林 |
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| 作者单位： | 1. 安徽理工大学地球与环境学院,安徽,淮南,232001
2. 武汉科技大学中南分校生命科学学院,湖北,武汉,430223 |
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| 摘 要： | 根据甲胺生产废水中各有机物沸点的差异,利用盐酸作为掩蔽剂,通过正交试验和单因素优化试验,对蒸馏法回收甲胺生产废水中甲醇的工艺条件进行优化,表明:在保温温度85℃,保温时间180min,掩蔽剂比(酸(∶氨+胺))1.1:1条件下,甲醇的回收率在80%以上,剩余的氨氮维持在0.4g/L,COD去除率约30%,掩蔽效率在97%以上,出水氯离子浓度为190～195mg/L,pH值6.94～6.99;余液中的混胺盐和铵盐通过蒸发结晶可制得高效氮肥。因此用蒸馏法回收甲醇具有良好的效果,实现了甲胺生产废水中甲醇的资源化。
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| 关 键 词： | 甲胺生产废水 蒸馏法 甲醇 资源化 |
Reutilization of Methanol from Methylamine Manufacturing Wastewater |
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| CHENG Jia-di,GAO Liang-min,HUANG Zhou-man,WANG Gui-lin.Reutilization of Methanol from Methylamine Manufacturing Wastewater[J].Environmental Science and Technology,2009,32(8). |
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| Authors: | CHENG Jia-di GAO Liang-min HUANG Zhou-man WANG Gui-lin |
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| Institution: | 1.School of Earth and Environment;Anhui University of Science and Technology;Huainan 232001;China;2.School of Life Science and Technology;Zhongnan Branch;Wuhan University of Science and Technology;Wuhan 430223;China |
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| Abstract: | Distillation method was used to recover methanol from methylamine manufacturing wastewater using hydrochloride as masking agent according to different boiling points of organic matters.A lab-scale study was conducted to optimize the reaction conditions by orthogonal experiment and single factor optimization experiment.Results showed that recovery efficiency of methanol was above 80%,residual ammonia nitrogen was maintained on the level of 0.4g/L and removal efficiency of COD was 30%,masking efficiency was m... |
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| Keywords: | methylamine manufacturing wastewater distillation method methanol reutilization |
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