当公用事业公司经理征求投标时 碳（GAC）在他们的过滤器中，他们倾向于限制它 由于褐煤 GAC是次等的。这项研究是在 位于北卡罗来纳州威尔明顿的斯威尼水处理厂 是为了确定是否确实存在 褐煤和沥青GAC之间的差异。这个 plant使用一系列方法处理Cape Fear河水 处理过程包括臭氧氧化和生物过滤。 对于本研究，现有的GAC媒体分为两种 更换了工厂的全尺寸双介质过滤器； 一种是褐煤GAC，另一种是沥青GAC GAC。两个新过滤器和一个控制过滤器包含 对最初的GAC进行了操作和监控 13个月。前三个月习惯于 耗尽新活性炭的吸附能力，并 从生物学上适应它。在接下来的10年里 几个月后，从 整个处理厂和 三个过滤器中每一个的流出物。样品 分析了各种物理、化学和生物因素 结果表明 这两种类型在过滤和过滤方面都表现良好 生物过滤。这项研究的结果应该鼓励 公用事业经理将把褐煤广汽纳入广汽的竞标 饮用水处理用介质。包括3个参考文献、表格和图表。

When utility managers solicit bids for granular activated carbon (GAC) in their filters, they tend to limit it to bituminous GAC because of the perception that lignite GAC is inferior. This study, conducted at the Sweeney Water Treatment Plant in Wilmington, North Carolina was conducted to determine whether there are indeed differences between lignite and bituminous GAC. The plant treats Cape Fear River water using a series of treatment processes that include ozonation and biofiltration. For this study, the existing GAC media in two of the plant's full-scale dual-media filters was replaced; one with lignite GAC and the other with bituminous GAC. The two new filters and one control filter containing the original GAC were operated and monitored for 13 months. The first three months were used to exhaust the adsorptive capacity of the new GAC and biologically acclimate it. During the subsequent 10 months, water quality samples were collected from various points throughout the treatment plant and from the effluent of each of the three filters. The samples were analyzed for various physical, chemical, and biological constituents, and the results showed that the two types performed equally well for both filtration and biofiltration. The results of this study should encourage utility managers to include lignite GAC in bids for GAC media for use in drinking water treatment. Includes 3 references, tables, figures.