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发明公开
CN106268342A 一种纳滤膜清洗方法 无效 - 驳回

一种纳滤膜清洗方法
摘要：
本发明公开了一种纳滤膜清洗方法，涉及粘胶纤维回收领域，主要包括除盐水和碱液配制的步骤、清洗液混合加热的步骤、膜芯内废碱初步冲洗的步骤和纳滤膜循环清洗的步骤；利用混有碱液的清洗液有效去除纳滤膜中各膜管内长期使用积累下来的难以溶解的半纤维及其结晶，使清洗后的纳滤膜具有极高的再用性。
摘要（英）：

The invention discloses a nanofiltration membrane cleaning method and relates to the field of recycling of viscose fiber. The nanofiltration membrane cleaning method mainly comprises the steps of preparing desalted water and alkaline liquid, mixing and heating a cleaning liquid, primarily flushing waste alkali in a membrane core, and cyclically cleaning the nanofiltration membrane; the cleaning liquid with the alkaline liquid is used to effectively remove from a nanofiltration membrane, refractory hemicellulose and its crystal accumulated in membrane tubes in long-term use, such that the cleaned nanofiltration membrane is highly reusable.

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