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离子膜电解去除味精废水中氨氮的研究
Research on the removal of the ammonium-nitrogen from monosodium L-glutamate wastewater by ion-exchange membrane electrolysis
【摘要】 采用离子膜电解法对高浓度氨氮废水进行脱氨预处理,对影响氨氮去除的几种因素进行了研究.6 V、60℃下去除率在75%以上.脱除的氨氮以浓氨水的形式回收,实现废物资源化.废水经脱氨后出水基本无色,COD也有一定降低.综合考虑能耗后,得出本实验条件下适宜的操作条件,去除率平均接近64%,为工业化应用提供了依据.
【Abstract】 The removal of NH3-N from monosodium L-glutamate Wastewater used the ion-exchange membrane electrolysis method was studied.NH3-N in the wastmater could be recovered as a concentrated aqueous ammonia.The effects of several factors of electrolysis on the NH3-N removal rate were investigated.The results show that the electrolysis method gives better effect under result with faster velocity of flow,higher temperature and higher voltage.The best one can be as high as 75% when the voltage is 6 V and the temperature is 60 ℃.COD,color of the wastewater were also decreased. Nearly 64% of NH3-N in the wastwater is removed under appropriate operation conditions for future industrialization consideration.
【Key words】 cation-exchange membrane; electrolysis; L-glutamate wastewater; ammonium-nitrogen;
- 【文献出处】 膜科学与技术 ,Membrane Science and Technology , 编辑部邮箱 ,2007年02期
- 【分类号】X792
- 【被引频次】20
- 【下载频次】372