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化工学报  2012 

气液两相流强化卷式纳滤膜分离硫酸镁水溶液

DOI: 10.3969/j.issn.0438-1157.2012.12.026, PP. 3920-3926

Keywords: 卷式纳滤膜,膜通量,截留率,气液比

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Abstract:

气液两相流强化卷式纳滤膜分离实验是针对DK2540卷式纳滤膜,采用气液两相流强化分离技术,对硫酸镁溶液进行研究,较系统地研究了温度、料液浓度、过膜压力、料液流速、气体流速等因素在分离硫酸镁溶液时,对膜通量、截留率和膜通量增加率的影响,并总结了气液两相流强化效果。结果表明,气液两相流强化卷式纳滤膜分离有明显的效果。温度宜在30~40℃。料液浓度越大、过膜压力越小、气液比越大,气液两相流强化效果越明显。

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