Photocatalytic-membrane separation function-coupled filter unit and operating method thereof

• Main Authors: ZHANG XIUMEI, LIU HONG, XU XIAOHONG, SHI CHUNYING
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a photocatalytic-membrane separation function-coupled filter unit and an operating method thereof. The photocatalytic-membrane separation function-coupled filter unit is constructed on the basis of a filter membrane with photocatalytic activity. On the premise of implementing membrane separation and water purification, the photocatalytic activity of the filter membrane is utilized to effectively decompose organic pollutants, bacteria, viruses and the like trapped on the filter membrane surface under lighting conditions, thereby implementing deep purification on the water body, effectively reducing and even preventing the concentration polarization phenomenon in the membrane separation process, and enhancing the filtering quality of the membrane. 本发明涉及种光催化-膜分离功能耦合的过滤装置及其操作方法。本发明基于具有光催化活性的滤膜，构建具有光催化-膜分离耦合功能的过滤装置。在实现膜分离净化水的同时，利用过滤膜的光催化活性，在光照下将截留于滤膜表面的有机污染物污染物、细菌和病毒等有效分解，实现水体深度的深度净化，同时有效地减轻甚至防止膜分离过程的浓差极化现象，提高膜的过滤性能。