Evaluation of a Vertical Fiber Membrane Aerator

这是一个奖项，以支持对水的氧化膜过程的研究。这项研究包括评估垂直定向中空纤维的传质特性，这些纤维被排列成包状，并在其中保持纯氧气氛。氧通过纤维壁转移到水平流动的流体中，而不形成气泡，这是传统氧化过程的特点。这个概念有可能以与生物过程的生化需氧量一致的速率提供所需的呼吸氧气量，而不会损失氧合过程的效率，这是依赖于气泡上升或循环模式的氧气转移的氧合过程的特征。​用于处理废水的潜水培养、生物过程依赖于足够的氧气进入反应容器，以保持高速率的好氧、生物活性。预计这项研究将产生的概念的应用还包括使废水处理过程的流出物达到与维持接收溪流中良好的氧气水平相一致的水平，维持冰覆盖湖泊所需的氧气水平，也可以用来补偿水力发电过程中氧气的流失。

This is an award to support research on a membrane process of for oxygenation of water. The research involves evaluation of the mass transfer characteristics of vertically oriented hollow fibers, arranged in packets, and within which an atmosphere of pure oxygen is maintained. The oxygen is transferred to the horizontally-flowing fluid through the fiber walls without the formation of bubbles as is characteristic of conventional oxygenation processes. This concept has a potential for providing the required amount of respiratory oxygen at a rate that is consistent with the biochemical oxygen demand of the bioprocess without the loss of efficiency that is characteristic of oxygenation processes that depend on oxygen-transfer from a rising or circulating pattern of bubbles. Submerged-culture, biological processes for treatment of wastewaters depend upon an adequate movement of oxygen into the reaction vessel to maintain a high rate of aerobic, biological activity. Applications of the concept expected to emerge from this research also include bringing effluents from wastewater treatment processes up to levels consistent with maintenance of good levels of oxygen in receiving streams, in maintaining desired levels of oxygen in ice-covered lakes, and in compensating for loss of oxygen during use of hydropower in the generation of electricity.