本研究的总体目标是确定饮用水生物处理的最佳条件。本文讨论的具体目标是:1）评估臭氧剂量和水力负荷对无烟煤/砂滤器和颗粒活性炭（GAC）接触器中生物活性的影响；2） 比较生物处理步骤和物理/化学处理步骤；3） 确定臭氧剂量对可同化有机碳形成的影响；4） 确定通过生物处理步骤减少氯需求。

The overall goal of this research was to determine optimum conditions for biological treatment of drinking water. The specific objectives addressed in this paper were to: 1) assess the effect of ozone dosage and hydraulic loading on biological activity in anthracite/sand filters and in granular activated carbon (GAC) contactors; 2) compare biological treatment steps to physical/chemical treatment steps; 3) determine the effect of ozone dose on assimilable organic carbon formation; 4) establish the reduction in chlorine demand by biological treatment steps.