Weinrich L, Grélot A
A3 Water Solutions, Magdeburger Str. 16a, 45881, Gelsenkirschen, Germany.
Water Sci Technol. 2008;57(4):613-20. doi: 10.2166/wst.2008.124.
One of the most limiting factors for the extension and acceptance of MBR filtration systems for municipal and industrial wastewater is the impact of membrane fouling on maintenance, operation and cleaning efforts. One field of action in the European Research Project "AMEDEUS" is the development and testing of MBR module concepts with innovative fouling-prevention technology from three European module manufacturers. This article deals with the performances of the flat-sheet modules by A3 Water Solutions GmbH in double-deck configuration evaluated over 10 months in Anjou Recherche under typical biological operation conditions for MBR systems (MLSS = 10 g/l; SRT = 25 days). By using a double-deck configuration, it is possible to operate with a net flux of 25.5 l/m2.h at 20 degrees C, a membrane air flow rate of 0.21 Nm3/h.m2 of membrane to achieve a stable permeability of around 500-600 l/m2.h.bar. Additionally, it was observed that it is possible to recover the membrane performance after biofouling during operation without intensive cleaning and to maintain stable permeability during peak flows. The evaluated concepts for equipping and operating MBR systems will be applied to several full-scale plants constructed by A3 Water Solutions GmbH.
膜生物反应器（MBR）过滤系统在市政和工业废水处理中的推广及应用存在诸多限制因素，其中膜污染对维护、运行及清洗工作的影响尤为突出。欧洲研究项目“阿梅代厄斯（AMEDEUS）”的一个行动领域是，对来自三家欧洲膜组件制造商的采用创新防污技术的MBR组件概念进行开发和测试。本文探讨了A3水解决方案有限公司生产的双层平板膜组件在昂儒研究中心（Anjou Recherche）典型MBR系统生物运行条件下（混合液悬浮固体浓度=10克/升；污泥停留时间=25天），历时10个月的性能表现。采用双层结构配置后，在20摄氏度下可实现25.5升/平方米·小时的净通量运行，膜空气流量为0.21标准立方米/小时·平方米膜面积，从而实现约500 - 600升/平方米·小时·巴的稳定渗透率。此外，还观察到在运行过程中生物污染后无需强力清洗即可恢复膜性能，并且在流量峰值期间能保持稳定的渗透率。所评估的MBR系统装备及运行概念将应用于A3水解决方案有限公司建造的多个全尺寸工厂。
