饮用水中的味道和气味对水来说是一个越来越常见的问题 加拿大、美国和世界各地的公用事业。空气中产生的泥土/霉味 geosmin和2-甲基异龙脑（MIB）是最有问题的味道和气味类型之一。 这两种化合物都耐化学氧化，很难用常规方法去除 水处理方法。臭氧氧化后再进行生物过滤可能是一种替代方法 有效清除的方法。在这项研究中，使用四种材料进行了实验室规模的实验 含有生物活性无烟煤和颗粒活性炭的平行滤柱 （GAC）媒体和沙子。调查的因素包括温度和介质类型。来源 水包括加入geosmin和MIB的脱氯自来水，以及 易于生物降解的有机物混合物（即典型的臭氧氧化副产物），以 模拟过滤前经过臭氧氧化的水。结果表明: 温度和介质（GAC和无烟煤）都是重要因素。 温度有点低 对geosmin去除有显著影响，尤其是在GAC过滤器中。温度下降 20摄氏度至8摄氏度导致清除率下降高达37个百分点。媒体有一个 在20℃和8℃时，对geosmin和MIB的去除有显著影响。geosmin中的差异 在20℃时，两种过滤器之间的清除量要大得多（例如geosmin清除量） 与无烟煤过滤器相比，GAC过滤器的过滤效率最高高出30个百分点）。这个 两种过滤器在MIB清除率方面的差异在两种情况下都非常相似 温度。包括20个参考文献、表格、图表。

The presence of taste and odors in drinking water is an increasingly frequent problem for water utilities across Canada, the United States and the world. The earthy/musty odors produced by geosmin and 2-methylisoborneol (MIB) are one of the most problematic types of taste and odors. Both compounds are resistant to chemical oxidation and are difficult to remove by conventional water treatment methods. Ozonation followed by biological filtration may offer an alternative means of effective removal. In this research, bench scale experiments were conducted using four parallel filter columns containing biologically active anthracite and granular activated carbon (GAC) media and sand. The factors under investigation were temperature and media type. Source water consisted of dechlorinated tap water to which geosmin and MIB were added as well as a cocktail of easily biodegradable organic matter (i.e. typical ozonation byproducts) in order to simulate water that had been subjected to ozonation prior to filtration. The results indicated that both temperature and media (GAC vs. anthracite) were important factors. Temperature had a significant effect on geosmin removals, especially in GAC filters. A decrease in temperature from 20oC to 8oC resulted in a decrease in removals as high as 37 percentage points. Media had a significant effect on geosmin and MIB removals at both 20oC and 8oC. The difference in geosmin removals between the two types of filters was much greater at 20oC (e.g. geosmin removals reached a maximum of 30 percentage points higher in GAC filters than in anthracite filters). The differences in MIB removals between the two types of filters was quite similar at both temperatures. Includes 20 references, table, figures.