作为一项大型研究的组成部分，使用改进版的实验室规模可生物降解溶解有机碳（BDOC）方法，确定了三个完整处理厂的总可生物降解有机物（BOM）浓度。这种方法包括让水连续通过一对玻璃柱，玻璃柱中含有玻璃珠，这些玻璃珠支撑着驯化的本土生物膜。在将该方法应用于全尺寸工厂取样情况之前，需要对原试验台规模方法进行一些修改。本文描述了方法修改、修改原因、连续使用两年后的一般观察结果、与该方法相关的潜在缺陷，以及对经测试的修改方法实用性的总体评论。

As a component of a larger study, total biodegradable organic matter (BOM) concentrations at three full-scale treatment plants were established using a modified version of the bench-scale biodegradable dissolved organic carbon (BDOC) method. This method involves continuous passage of water through a pair of glass columns containing glass beads which support an acclimated indigenous biofilm. Before this method could be implemented in full-scale plant sampling situations, some modifications to the original bench-scale method were necessary. This paper describes method modifications, reasons for the modifications, general observations following two years of continuous use, potential drawbacks associated with the method and an overall comment on the practicality of the modified method as tested.