在阿肯色州康威，一种浸没式超滤膜在化学凝固条件下连续进行了三个半月的中试试验。试点试验分为两个星期的阶段，在康威、布鲁尔湖和卡德隆溪的两个原水水源之间交替进行。测试了四种主要操作条件:无化学添加；明矾添加；添加明矾和粉末活性炭（PAC）；以及明矾和高锰酸钾（KMnO4）的添加。每个操作条件在湖面上测试两周，然后在小溪上测试两周。在整个测试过程中，对两种供应的总有机碳（TOC）进行了测量，以确定强化凝固的需要以及每种供应的膜性能。消毒副产物（DBP）形成测试包括三卤甲烷（THM）和卤乙酸（HAA）的采样。粉末活性炭作为一种潜在的有机碳去除和/或味道和气味控制手段被纳入测试计划。 还评估了添加高锰酸钾对锰去除和膜性能的影响。测试期间对原水和渗透物的其他分析包括:UV254；铁锰；比电导；大肠杆菌总大肠菌群；还有藻类。试验结果与全尺寸工厂的采样结果进行了比较，该工厂是一家使用莱克布鲁尔作为主要水源的常规处理厂。包括4个参考文献、表格和图表。

A submerged ultrafiltration membrane operated with chemical coagulationwas pilot tested on a continuous basis for three and a half months in Conway,Arkansas. Pilot testing was divided into two-week phases that alternated betweenthe two raw water sources for Conway, Lake Brewer and Cadron Creek. Four primaryoperating conditions were tested: no chemical addition; alum addition; alum andpowdered activated carbon (PAC) addition; and, alum and potassium permanganate(KMnO4) addition. Each operating condition was tested for two weeks on the lakeand then followed by two weeks of testing on the creek. Total organic carbon(TOC) was measured for both supplies throughout the testing to determine the needfor enhanced coagulation and the performance of the membranes for each supply.Disinfection byproduct (DBP) formation testing included sampling forTrihalomethanes (THM) and Haloacetic Acids (HAA). Powdered activated carbon wasincorporated into the testing program as a potential means of total organiccarbon removal and/or taste and odor control. The effects of KMnO4 addition onmanganese removal and membrane performance were also evaluated. Other analysis ofthe raw water and permeate during the testing included: UV254; iron; manganese;specific conductance; E. coli.; total coliforms; and, algae. The results from thepilot testing were compared to sampling from the full-scale plant, which is aconventional treatment plant that uses Lake Brewer as the primary water source. Includes 4 references, tables, figures.