Donnan渗析分离含盐废水中的氨氮

发布时间：2018-03-27 20:47

  本文选题：Donnan渗析　切入点：氨氮　出处：《应用化工》2017年10期

【摘要】：通过Donnan渗析去除含盐废水中的氨氮,研究了盐水初始浓度、NaCl与氨氮比例、搅拌强度以及温度等对氨氮分离的影响。结果表明,降低盐水浓度、NaCl与氨氮比可提高氨氮的去除率,搅拌速度由200 r/min提高到500 r/min时,氨氮的去除率从49.6%提高到54.3%,处理时间缩短。适当提高温度,可有效提高氨氮的分离效果。
[Abstract]:Ammonia nitrogen was removed from salt wastewater by Donnan dialysis. The effects of initial concentration of salt water, ratio of Donnan to ammonia nitrogen, stirring intensity and temperature on the separation of ammonia nitrogen were studied. The results showed that reducing the ratio of salt water concentration to ammonia nitrogen could improve the removal rate of ammonia nitrogen. When the stirring speed was increased from 200 r/min to 500 r/min, the removal rate of ammonia nitrogen increased from 49.6% to 54.3, and the treatment time was shortened.
【作者单位】： 福建师范大学环境科学与工程学院;
【基金】：国家自然科学基金青年基金项目(21507069) 福建省科技重大专项(2015YZ0001)
【分类号】：TQ028.72;X703
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本文编号：1673192