位于佛罗里达州坦帕的大卫·L·蒂平水处理厂（DLTWTF）处理 希尔斯堡河水，其特点是有机物含量相对较高 尤其是在雨季。2001年12月，臭氧氧化和生物活化 新安装了碳（BAC）过滤器，并对过滤器进行了一些额外的修改 现有设施。新工艺开始后，一氯胺的生成量意外降低 观察到处理水中一氯胺残留的效率和快速衰减。 改变游离氯和氨注入顺序，并提供足够的 游离氯的混合和反应时间显著增加了一氯胺的生成 效率然而，一氯胺在成品水中仍然不稳定，这可能导致 可能与BAC过滤器中的生物活性有关。包括5个参考文献、图表。

The David L. Tippin Water Treatment Facility (DLTWTF) located in Tampa, Florida, treats the Hillsborough River water, which is characterized by relatively high organic matter contents especially during high rainfall seasons. In December 2001, ozonation and biologically activated carbon (BAC) filtration were newly installed along with a few additional modifications to the existing facility. After the new process started, unexpectedly low monochloramine formation efficiency and a rapid decay of monochloramine residual in treated waters were observed. Changing the sequence of free chlorine and ammonia injection as well as providing sufficient mixing and reaction time for free chlorine dramatically increased monochloramine formation efficiency. However, monochloramine remained unstable in finished waters, which might supposedly be related to biological activities in BAC filters. Includes 5 references, figures.