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

9805620这是一个奖项，其目的是比目前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。对这些残留有机物质的表征将被用来协助设计去除它的工艺。该项目正在进行的研究包括进一步开发和应用一种新的测定海水中木质素的方法，包括使用四甲基氢氧化铵的“热化学分解”反应来分析水中的天然有机物。该反应产生甲基化产物，可通过气相色谱-质谱仪进行测定，从而深入了解其母有机物质的结构。这一知识可能有助于深入了解如何活化用于去除水中天然有机物质的碳，以改善其对目标有机物质的吸附性能，去除目标有机物质将减少或消除水中消毒过程中不受欢迎的副产品的形成。获得这一奖项的建议是根据NSF98-142《学术与工业联系机会拨款》(GOALI)中包含的指导方针提交的。该项目的工业合作伙伴是美国自来水厂服务公司和Norit America，Inc.。该项目的成果预计将提供激活碳所需的基本知识，这些碳将能够更有能力选择性地吸附水中的天然有机物，而现有的活性碳是可能的。***

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. ***