GOALI: Characterization of Natural Organic Matter in Water Recalcitrant to Removal by Conventional Treatment Processes

9805620 Cannon这是一个奖项，其目的是获得比现在更好地了解水中天然有机物的性质，这些有机物无法通过传统的水处理工艺去除。 这种残留有机物的特性将被用来帮助设计其去除过程。 该项目正在进行的研究涉及进一步开发和应用一种测定海水中木质素的新方法，包括在“热化学分解”反应中使用四甲基氢氧化铵来分析水中的天然有机物质。 该反应产生甲基化产物，可通过使用气相色谱质谱法测定，从而提供对其母体有机物质结构的了解。 这一知识可能提供对用于从水中去除天然有机物质的碳如何被活化以改善其对目标有机物质的吸附性能的见解，去除目标有机物质将减少或消除水中在消毒过程中形成的不期望的副产物。 导致这个奖项的提案是根据NSF 98 -142学术界与工业界联络的赠款机会（GOALI）中所载的指导方针提交的。 执行该项目的工业伙伴是美国供水服务公司。和Norit Americas，Inc. 预计该项目的结果将提供活化碳所需的基本知识，这些碳将更有能力选择性地吸附水中的天然有机物，而目前可用的活性炭则有可能。***

9805620 Cannon This is an award, the objective of which is to obtain a better understanding than now exists of the nature of natural organic matter in water that eludes removal by conventional water treatment processes. Characterization of this residual organic matter will be used to assist in design of processes for its removal. The research being conducted in this project involves further development and application of a new method for determination of lignin in sea water involving use of tetramethyl ammonium hydroxide in a "thermochemolysis" reaction to analysis of water for natural organic substances. This reaction produces methylated products, determinable by use of gas-chromatographic mass spectroscopy that provide insights into the structure of their parent organic substances. This knowledge is likely to provide insights into how carbon used for removal of natural organic substances from water can be activated to improve its adsorptive properties for the target organic substances, removal of which will reduce or eliminate the formation of undesirable byproducts in water during its disinfection. The proposal leading to this award was submitted under guidelines contained in NSF98-142 Grant Opportunities for Academic Liaison With Industry (GOALI). The industrial partners in conduct of this project are the American Water Works Service Company, Inc. and Norit Americas, Inc. Results of this project are expected to provide the fundamental knowledge needed for activation of carbons that will be more capable of selective adsorption of natural organic matter from water that is possible with currently available activated carbon. ***