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

0202177加农炮这项研究的目标是开发专为去除水中的有机气味和气味化合物而量身定做的颗粒状活性碳。特别是，甲基异龙脑(MIB)和吉诺明即使在浓度低至万分之五到万分之十的情况下也会给饮用水带来霉味和气味；虽然这些化合物不会对健康构成风险，但它们的存在总是会引起消费者的投诉和安全担忧。活性碳吸附为脱除土豆油、MIB和其他恶臭物质提供了一种重要的途径。这项研究将分三个顺序进行：(1)以基础为导向的实验室规模测试，包括对碳进行甲烷-蒸汽热处理，以表征热处理过程中扩散速度与反应速度的关系；(2)与定制的GAC的中试规模制造协调；(3)在市政水处理设施中进行中试规模评估。这项研究将检验这样一个假设，即使用甲烷-蒸汽热处理工艺，增加除臭剂对应于增加孔体积、降低表面酸度和增加石墨烯平面伸长率。如果成功，该项目将产生能够有效去除MIB、Geosmin和其他有机化合物的活性碳。该项目由国家科学基金会的GOALI计划提供支持；PIS将在开发工作中与Norit America，Inc.密切合作，并在试行规模的评估中与帕塞伊克山谷水委员会(NJ)密切合作。

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.