Autotrophic Denitrification of Drinking Water Using Microporous Membrane Bioreactors

9908906 Ergas该奖项旨在支持研究微孔膜生物反应器在含硝酸盐浓度过高的水中进行加氢营养化反硝化的可能性。该膜用于支持能够氧化氢并完成反硝化的微生物种群，增加氢的传质完成速率，并将活性微生物培养物从被处理的水中分离出来。该项目的目的是研究控制氢气和硝酸盐传质到微生物培养物的因素，确定反硝化速率和过程对水质的影响。本研究的结果有望为基于膜的水处理过程中氢和硝酸盐传质和生物降解的数学模型的校准提供基础，以将硝酸盐浓度降低到可接受的水平。这些模型反过来有望为确定基于这一概念的过程在解决地下水和地表水硝酸盐污染的工程设计系统中的潜在应用提供基础。＊＊＊

9908906 Ergas This is an award to support research investigating the possible use of a microporous membrane bioreactor for hydrogenotrophic denitrification of water containing excessive concentrations of nitrates. The membrane serves to support the microbial population capable of oxidizing hydrogen and accomplishing denitrification, increases the rate at which mass transfer of hydrogen is accomplished and acts to separate the active microbial culture from the water being treated. Objectives of this project are to investigate the factors that control hydrogen and nitrate mass transfer to the microbial culture, to determine denitrification rates and impact of the process on water quality. Results of this research are expected to provide the basis for calibration of mathematical models of hydrogen and nitrate mass transfer and biodegradation in membrane-based processes for treatment of water to reduce concentrations of nitrate to acceptable levels. These models are in turn expected to provide the basis for determining the potential application of processes based on this concept in engineering design of systems that address nitrate contamination of ground and surface water. ***