Membrane aerated biofilm reactor

The present disclosure provides a water treatment module comprising a bundle of hollow fiber membranes that comprises a treatment portion extending between bottom and top ends and comprising at least one gas diffuser, the membranes being gas permeable and water impermeable; at least in one end of the hollow fiber membranes being linked to a source of biofilm growth-supporting gas (BGSG) and configured to permit inlet of said BGSG into the hollow fiber membranes; and the at least one gas diffuser being associated with the bundle's bottom end and configured for discharging gas bubbles within the bundle's confines such that gas bubbles rise through the treatment portion between the fibers. Also disclosed herein are devices, systems and methods making use of this module. 本公开提供了种水处理模块，包括中空纤维膜的束，中空纤维膜的束包括在底端部和顶端部之间延伸的处理部分，并且该中空纤维膜的束包括至少个气体扩散器，该膜是透气且不透水的；至少在中空纤维膜的端部中连结到生物膜生长支持气体源(BGSG)，并且构造成允许所述BGSG进入到空纤维膜中；并且该至少个气体扩散器与束的底端部相关联并且构造成排放处于所述束的限定范围内的气泡，使得气泡在所述纤维之间穿过处理部分上升。本文还公开了利用该模块的装置、系统和方法。