本研究的主要目的是比较分层上流式碳吸附（LUCA）与传统固定床吸附器在去除饮用水源（包括地下水）中的氯代烃方面的效果。在LUCA操作过程中，颗粒活性炭（GAC）以薄层形式添加，只要达到污染物的最大允许出水浓度，就会添加一层新的活性炭。因此，GAC暴露于溶解有机碳的时间减少，众所周知，溶解有机碳会降低GAC对有机污染物的吸附能力。研究发现，这种操作模式可使操作时间延长约50%，相应地提高吞吐量。包括32个参考文献、表格和图。

The primary objective of this investigation was to compare layered upflow carbon adsorption (LUCA) with conventional fixed-bed adsorbers for removing chlorinated hydrocarbons from drinking water sources including groundwater sources. During LUCA operation, the granular activated carbon (GAC) is added in thin layers, with a new layer being added whenever the maximum allowed effluent concentration of the contaminants is reached. Thus the time of exposure of the GAC to dissolved organic carbon, which is known to reduce GAC's adsorption capacity for organic contaminants, is reduced. This mode of operation was found to produce approximately 50 percent longer operating times and correspondingly higher throughputs. Includes 32 references, tables, figures.