LEQUIA, Institute of the Environment, University of Girona, E17071, Girona, Catalonia, Spain.
ICRA (Catalan Institute for Water Research), Scientific and Technological Park of the University of Girona, H2O Building, c/ Emili Grahit 101, E17003, Girona, Spain.
Water Res. 2015 Aug 1;79:1-9. doi: 10.1016/j.watres.2015.03.032. Epub 2015 Apr 17.
Membrane aeration represents between 35 and 50% of the operational cost of membrane bioreactors (MBR). New automatic control systems and/or module configurations have been developed for aeration optimization. In this paper, we briefly describe an innovative MBR air scour control system based on permeability evolution and present the results of a full-scale validation that lasted over a 1-year period. An average reduction in the air scour flow rate of 13% was achieved, limiting the maximum reduction to 20%. This averaged reduction corresponded to a decrease in energy consumption for membrane aeration of 14% (0.025 kWh m(-3)) with maximum saving rates of 22% (0.04 kWh m(-3)). Permeability and fouling rate evolution were not affected by the air scour control system, as very similar behavior was observed for these variables for both filtration lines throughout the entire experimental evaluation period of 1 year.
膜曝气占膜生物反应器（MBR）运行成本的 35%至 50%。已经开发出新型的自动控制系统和/或模块配置来进行曝气优化。本文简要介绍了一种基于渗透性演变的创新 MBR 空气擦洗控制系统，并介绍了为期 1 年的全面验证结果。实现了空气擦洗流量平均降低 13%，最大降幅限制在 20%。这一平均降幅相当于膜曝气能耗降低了 14%（0.025 kWh m-3），最大节能率为 22%（0.04 kWh m-3）。渗透性和污垢速率的演变不受空气擦洗控制系统的影响，因为在整个 1 年的实验评估期间，两条过滤线的这些变量都表现出非常相似的行为。
