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扩散渗析电渗析回收赖氨酸离子交换废液中的盐
Authors
丛威
王倩
魏允
Publication date
1 January 2019
Publisher
Abstract
为缓解电渗析膜污染,提高电渗析性能,采用阴膜扩散渗析对待脱盐的赖氨酸离子交换废液进行净化处理,对扩散渗析回收的(NH_4)_2SO_4溶液进行电渗析脱盐浓缩。结果表明,当扩散渗析流量为5.6 L/h时,扩散渗析的扩散系数达2.24×10~(-7) cm~2/s,离子交换废液中(NH_4)_2SO_4透过率约为30%,可截留90.1% Mg~(2+)和94.5%有机氮、80.3%蛋白、86.0%总糖、79.3%化学需氧量(COD);与直接电渗析赖氨酸离子交换废液相比,对扩散渗析回收的(NH_4)_2SO_4溶液进行电渗析脱盐浓缩,SO_4~(2-)膜通量、电流效率分别提高了55.7%和18.3%,操作时间、单位膜通量能耗分别降低了26.1%和42.3%。用扩散渗析净化赖氨酸离子交换废液可有效缓解后续电渗析的膜污染,提高电渗析性能
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
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oai:ir.ipe.ac.cn:122111/39384
Last time updated on 31/03/2020
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/39386
Last time updated on 31/03/2020