本研究开发了一种快速有效地评估用于缓解味觉和气味发作的颗粒活性炭（GAC）床剩余寿命的方法。2-甲基异龙脑（MIB）是一种具有代表性的味道和气味化合物，其最大衰减可以使用实验室规模的色谱柱快速测定，色谱柱中填充了从全尺寸运行吸附器中提取的部分废GAC。这些实验室规模的色谱柱紧密模拟了中试规模色谱柱的性能。GAC去除的瞬时MIB负荷百分比并不取决于进水MIB浓度，而是取决于吸附在GAC表面的天然有机物的量。该方法可用于确定GAC对引起味道和气味的化合物的潜在去除百分比，作为GAC使用时间的函数。它允许对GAC进行测试，以评估其对夏季味道和气味事件的准备情况。 仅在空床接触时间小于10分钟的GAC吸附器中进行吸附不足以完全防止典型的MIB事件。包括37个参考文献、表格、图表。

This study developed a way to rapidly and effectively evaluate the remaining life of a granular activated carbon (GAC) bed used to mitigate taste and odor episodes. The maximum attenuation of a 2-methylisoborneol (MIB) episode, a representative taste and odor compound, can rapidly be determined using laboratory-scale columns packed with partially spent GAC taken from full-scale operating adsorbers. These laboratory-scale columns closely simulated the performance of pilot-scale columns. The percent of a transient MIB load removed by GAC did not depend on the influent MIB concentration but did depend on the amount of natural organic matter adsorbed on the GAC surface. This approach can be used to determine GAC's potential percentage removal of taste- and odor-causing compounds as a function of GAC service time. It allows GAC to be tested to estimate its readiness for summer taste and odor episodes. Adsorption alone in GAC adsorbers that used < 10 min of empty bed contact time was insufficient to fully protect against typical MIB episodes. Includes 37 references, tables, figures.