多糖纳滤浓缩初步研究

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本文采用芳香聚酰胺类纳滤(NF)膜,对药厂提供的多糖稀溶液进行浓缩试验研究。结果表明,纳滤(NF)可有效实现对多糖溶液的浓缩,纳滤过程的通量随着进料流量和操作压力的升高而增大,并随着浓缩倍率的增加而下降,且在高浓缩倍率下,压力对通量影响下降,采用定时低压高速侧冲洗可有效减缓膜面的污染。
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