为了在饮用水处理中设计去除天然有机物（NOM）的生物过滤器，而无需事先进行现场实验调查，开发了一个模型，旨在对此类生物反应器中发生的过程进行封闭描述。根据实验观察，特别注意描述细菌在培养基表面的附着和分离、基质的生物降解和原生动物的摄食的模型。该模型可用于稳态和动态仿真。本文给出了Quais稳态模拟结果。 它们与实验结果非常一致。研究了流速和水温对溶解有机物和HPC细菌去除率的影响，以及它们与床层深度的关系。包括34个参考文献、表格和图表。

In order to enable the design of biofilters for natural organic matter (NOM) removal in drinking water treatment without prior experimental on site investigations a model was developed which was aimed to give a closed description of the processes taking place in such bioreactors. Based on experimental observations special attention was given the model to describe bacterial attachment and detachment to the media surface, biodegradation of substrate and the grazing of protozoa. The model can be applied to steady-state as well as dynamic simulations. Quais steady-state simulations are shown. They were in excellent agreement with experimental results. The effects of flow rate and water temperature on removal of dissolved organic matter and HPC-bacteria as a function of bed depth are demonstrated. Includes 34 references, table, figures.