膜科学与技术

膜吸收技术用于处理高氨氮废水的研究

作者：陈卫文

单位：北京新源国能科技集团股份有限公司，北京，100015

关键词：膜吸收；高氨氮废水；稀硫酸；疏水膜

出版年,卷(期):页码： 2016,36(5):95-100

摘要：

针对目前日益严重的高氨氮废水处理问题，采用膜吸收技术能够在常温常压下使浓度3000 ~ 5000mg/L范围内的高氨氮废水流经疏水膜后，降为浓度低于原液1%可排放的水质，极大地提高了氨氮的去除效率。实验从原料液流速、吸收液浓度、膜组件长度和原料液与吸收液流向四个方面探究了不同因素对氨氮去除效率的影响。结果表明：吸收液浓度越高，氨氮去除率越高；随着原料液流速和膜组件长度的增加，氨氮去除率呈现先增大后减小的趋势；原液走管程，吸收液走壳程，原液与吸收液流向相同时的去除效果最好。

Aiming at the increasingly serious problem of treating the high ammonia wastewater, the study enabled to reduce the concentration of the high ammonia wastewater from 3000~5000mg/L to less than 1% of feed concentration that can be discharged when it flowed through the hydrophobic membrane at normal temperature and pressure by the membrane absorption, which greatly improved the removal efficiency of ammonia. The experiments explored the influence of the factors of feed velocity, concentration of absorption solution, the length of membrane module and flow direction on the removal efficiency of ammonia The results showed that the higher the concentration of the absorption solution, the higher the removal efficiency of ammonia. With the increase of the feed velocity and the length of the membrane modules, the removal efficiency of ammonia increased firstly and then decreased; it had the best removal efficiency of ammonia when the feed flowed tube side , the absorption solution flowed shell side and they had the same flow direction.

作者简介：陈卫文（1975-），男，天津大学环境工程专业硕士，清华大学MBA，北京新源国能科技集团股份有限公司集团副总裁，主要从事水处理和膜材料方面的研究。E-mail： fifaplane@163.com

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