电渗析粘胶纤维行业应用
粘胶纤维生产过程中产生的大量压榨废碱液,含有较高的半纤,以前处理工艺基本靠加入H2SO4中和,将半纤析出,会产生Na2SO4高浓盐水且COD含量较高,需要稀释生化减盐后才能排放,处置成本较高。利用天维公司开发的脱碱、脱酸、除盐电渗析对该废碱液的处理工艺进行改造,将碱回收,半纤深度开发生产木糖。该工艺不但回收了大量的碱,而且降低了中和成本和大量废盐的产生,同时将废料半纤开发成新产品。

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