Flat sheet membrane equipment spiral-wound membrane equipment Ceramic membrane / Tube membrane equipment Hollow fiber membrane / MBR equipment Disk-tube membrane (DTRO) equipment Continuous ion-exchange(SMB)/Chromatographic separation equipment Forward osmosis(FO)/Continuous dialysis equipment Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) equipment Customized experimental equipment Membrane selection and other Membrane performance testing equipment
Membrane separation Continuous ion-exchange / Chromatographic separation Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) Equipment accessories / consumables Customized engineering equipment
Application area Engineering case Industry information Membrane separation technology
Service commitment Instructions to Customers Matters need attention
实例 1: 低分子量的醇类主要是甲醇和乙醇。在许多工业应用中其被广泛用作溶剂和清洁剂。在使用过程中它们可能被 污染,根据实际情况其中有一些需要被净化以便重新使用,而传统的净化工艺通常采用费用昂贵的蒸馏法,给使用者造成较大的经济负担。在绝大多数情况下,采用纳滤膜对低分子量醇类进行净化回用比传统的蒸 馏法更加经济、有效。
甲醇净化回收纳滤膜系统设计
实例 2:用作汽车防冻剂的乙二醇为一种有害的化学品。高昂的乙二醇废液处理费用使回用被污染的乙二醇变得更具经 济性。纳滤膜能够让乙二醇透过,同时截留多价离子、油脂、悬浮物、色度等。因此纳滤膜可用于乙二醇回收。 经纳滤膜净化后的乙二醇既可以直接回用也可以被蒸发器再进一步浓缩。作为蒸发器的前处理时,纳滤膜提高了蒸发器的进料质量,从而减轻蒸发器的污染和清洗频率,同时由于提高了蒸发器的进料浓度, 减少了蒸发器的能量损耗。
乙二醇净化回收纳滤膜系统设计
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