GOALI: Novel Tailoring of Granular Activated Carbon for Removing Organic Odorants and Other Targeted Organic Compounds

0202177 大炮 本研究的目的是开发专门用于去除水中有机味道和气味化合物的颗粒活性炭。 特别是，甲基异冰片（MIB）和土臭素即使在低至万亿分之5 - 10的浓度下也会给饮用水带来霉味和气味;尽管这些化合物不会造成健康风险，但它们的存在总是会引起消费者的投诉和安全问题。 活性炭吸附是去除土臭素、MIB等恶臭物质的重要方法。 该研究将在三个连续的任务中进行：（1）以基础为导向的实验室规模测试，包括碳的甲烷-蒸汽热处理以及热处理期间扩散速率与反应速率的表征，（2）与定制GAC的中试规模制造的协调，以及（3）在市政水处理设施中的中试规模评估。 该研究将测试以下假设：使用甲烷-蒸汽热处理工艺，增加的气味去除对应于增加的孔体积，降低的表面酸性和增加的石墨烯平面伸长率。如果成功的话，该项目将导致活性炭适合有效去除MIB，土臭素和其他有机化合物。 该项目由NSF的GOALI计划支持; PI将与NORIT Americas，Inc.密切合作。在发展工作中，与帕塞伊克山谷水委员会（新泽西州）合作进行试点评估。

0202177 Cannon The objective of this research is to develop granular activated carbons tailored for the removal of organic taste and odor compounds from water. In particular, methyl isoborneol (MIB) and geosmin impart musty tastes and odors to drinking water even when they occur at concentrations as low as 5-10 parts per trillion; although these compounds pose no health risks, their presence invariably causes complaints and safety concerns among consumers. Activated carbon adsorption offers an important approach for removing geosmin, MIB and other odorants. The research will be conducted in three sequential tasks: (1) fundamentals-oriented bench scale testing, including methane-steam thermal treatments of the carbon with characterization of diffusion rates versus reaction rates during thermal treatment, (2) coordination with pilot-scale manufacture of the tailored GAC and (3) pilot scale evaluation at a municipal water treatment facility. The research will test the hypothesis that, using a methane-steam heat treatment process, increased odorant removal corresponds to increased pore volume, decreased surface acidity and increased graphene plane elongation. If successful, this project will result in activated carbons tailored to the effective removal of MIB, geosmin and other organic compounds. This project is supported under the GOALI program of NSF; the PIs will work closely with NORIT Americas, Inc. in the developmental work and with the Passaic Valley Water Commission (NJ) in the pilot-scale evaluations.