利用当地石灰软化水处理厂的沉淀池出水进行了实验室规模的过滤试验。在各种过滤器操作条件下，使用电子颗粒计数器观察滤液粒度分布随过滤器深度和时间的变化。在一个典型的水处理厂过滤器循环的持续时间内，进行了长时间（长达48小时）的试验，以观察成熟和突破的影响。 结果表明，成熟和突破不是不同的阶段，而是在不同粒径的颗粒中同时发生的。研究了介质尺寸和过滤速度的影响，并进行了简单的归一化处理。包括31个参考文献、表格、图表。

Laboratory-scale filtration experiments were conducted using sedimentation basin effluent from a local lime-softening water treatment plant. An electronic particle counter was used to observe changes in the particle size distribution of the filtrate as a function of filter depth and time under a variety of filter operating conditions. The experiments were conducted for an extended period (up to 48 h) to observe the effects of both ripening and breakthrough over the duration of a typical water treatment plant filter cycle. The results indicate that ripening and breakthrough are not distinct stages but occur simultaneously for different-size particles. The effects of media size and filtration velocity were investigated, and simple normalizations were developed. Includes 31 references, table, figures.