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借鉴大量国内外关于膜过滤分离先进技术研究成果并结合膜过滤生产实际,发现随过滤时间增加,膜污染加重导致过滤通量减小的问题。为此提出了一种新型的将膜过滤与机械振动相结合的膜振动过滤分离方式,即膜振动过滤,使之达到在保证膜过滤通量的基础上,又能有效防止膜阻塞的目的。从理论上分析证明膜振动过滤可行性,并应用自行设计、制造的具有控制振动振幅和频率的膜振动过滤装置进行过滤实验。通过实验测定膜过滤通量随过滤时间变化情况和过滤液体的透光值,证明了在合理操作条件下膜振动过滤的有效性和可行性。
Draw lessons from a large number of domestic and foreign research results on the advanced technology of membrane filtration separation combined with the actual production of membrane filtration, it was found that with the increase of filtration time, membrane fouling led to the decrease of filtration flux. Therefore, a novel vibration filtration and separation method combining membrane filtration and mechanical vibration is proposed, that is membrane vibration filtration, which can achieve the purpose of preventing the membrane from clogging effectively while ensuring membrane filtration flux. The feasibility of membrane vibration filtration was proved theoretically, and the membrane vibration filtration device with controlled vibration amplitude and frequency designed and manufactured by ourselves was used for filtration experiment. The membrane filtration flux was experimentally determined with the change of filtration time and the light transmittance of filtered liquid, which proved the effectiveness and feasibility of membrane vibration filtration under reasonable operating conditions.