微过滤膜之前的预臭氧在中试规模下运行，以评估 加州托鲁姆河水的强化有机碳去除和高级氧化。飞行员 这项研究旨在为Turlock污水处理厂的设计和建设提供支持 灌溉区，加利福尼亚州的一家灌溉和电力公司。据预测，臭氧之前 与明矾结合会增加铁、锰、颜色、浊度和有机碳的去除和去除 与单独添加混凝剂相比，提高膜性能。 由于有机食品的改良 除碳后，预计消毒副产物（DBP）的形成将减少 观察。然而，初步评估结果显示，尽管铁、锰和浊度 通过膜过滤，水平显著降低，降低与和一致 没有臭氧前。UV254和总有机碳（TOC）浓度的降低增加 与总三卤甲烷（THM）和卤乙酸（HAA）的减少同时观察到 与单独膜处理或臭氧后膜处理相比，臭氧前和明矾添加的形成 治疗臭氧氧化导致有机碳、DBP前体和 提供足够消毒残留所需的氯剂量。这两个因素加在一起降低了成本 在为期7天的模拟配电系统（SDS）评估期间形成的总THM和HAA。前区的影响 对膜系统性能的影响取决于膜系统。预臭氧预处理 明矾和单独使用明矾可以显著降低膜的性能 一个系统的膜污染速率，以增加另一个膜系统的污染速率，以及 在不添加化学物质的情况下，第三个系统会产生类似的污垢。固体问题 由于污泥排水不良而产生的携带物很可能是其中一种类型的膜污染的原因 膜系统。然而，一个膜系统似乎没有受到固体携带物的影响 在此期间，膜性能继续得到改善。根据这些试点结果， Turlock灌区新水处理厂的推荐处理机组包括 预臭氧、明矾凝固、絮凝、平板沉降器、微滤膜和后氯化。包括20个参考文献、表格和图表。

Pre-ozone prior to microfiltration membranes was operated at the pilot scale to evaluate the benefits of enhanced organic carbon removal and advanced oxidation of Tuolumne River water in California. The pilot study was conducted to support the design and construction of a new treatment plant for the Turlock Irrigation District, an irrigation and power company in California. It was anticipated that pre-ozone in conjunction with alum would increase iron, manganese, color, turbidity, and organic carbon removal and improve membrane performance compared to coagulant addition alone. As a result of improved organic carbon removal, it was anticipated that a decrease in disinfection byproduct (DBP) formation would be observed. Results from the pilot evaluation, however, showed that although iron, manganese, and turbidity levels were significantly decreased through membrane filtration, the reduction was consistent with and without pre-ozone. Increased reduction in the UV254 and total organic carbon (TOC) concentrations was observed in conjunction with a decrease in the total trihalomethane (THM) and haloacetic acid (HAA) formation for pre-ozone and alum addition compared to membrane treatment alone or with post-ozone treatment. Oxidation with ozone resulted in a reduction in organic carbon, a DBP precursor, and the chlorine dose necessary to provide adequate disinfection residual. Combined, these two factors reduced the total THM and HAA formed during 7-day simulated distribution system (SDS) evaluations. Impact of preozone on membrane system performance was membrane system dependent. Pretreatment with pre-ozone and alum combined and alum only were found to enhance membrane performance by significantly decreasing the rate of membrane fouling for one system, to increase the fouling rate for another membrane system, and to result in similar fouling for the third system as observed without chemical addition. Issues with solids carryover due to poor sludge drainage was likely the cause of some of the membrane fouling for one of the membrane systems. However, one membrane system did not appear to be impacted by the solids carryover and continued to show improved membrane performance during this period. Based on these piloting results, the recommended treatment train for the new water treatment plant for Turlock Irrigation District includes pre-ozone, alum coagulation, flocculation, plate settlers, microfiltration membranes, and post-chlorination. Includes 20 references, tables, figures.