该中试工厂研究旨在评估生物过滤对臭氧氧化过程中形成的醛的去除效果。该试验的另一个目的是证明醛测量可作为可同化有机碳（AOC）分析的替代物。还研究了使用颗粒活性炭（GAC）替代无烟煤作为过滤介质的情况，观察到GAC过滤器更快地发挥生物活性，并显示出更长期的稳定性。虽然低速过滤器的生物活性很快就建立起来，但高速过滤器及时达到了相当的性能。关于甲醛和乙二醛的数据分别提供了关于去除易生物降解和更难降解的臭氧副产品的信息，并展示了与去除AOC类似的趋势。 包括31篇参考文献、图表。

This pilot-plant study was initiated to evaluate biological filtration for the removal of aldehydes formed during ozonation. An additional objective of this testing was to demonstrate that aldehyde measurements could be used as a surrogate for analysis of assimilable organic carbon (AOC). The use of granular activated carbon (GAC) as an alternative to anthracite coal as the filter medium was also investigated, and it was observed that GAC filters developed biological activity sooner and showed longer-term stability. Although biological activity was established sooner on slow-rate filters, the high-rate filters in time achieved a comparable capability. Data for formaldehyde and glyoxal provide information on removal of readily biodegradable and more recalcitrant ozone by-products, respectively, and demonstrate trends similar to those for the removal of AOC. Includes 31 references, figures.