本研究调查了常规预处理对污水污染潜力的影响 海水。传统的处理方式包括混凝（三氯化铁作为 混凝剂），然后快速双介质过滤（砂/无烟煤）。后氯化的影响 （次氯酸钠）也进行了研究。实验室实验是在实验室里进行的 在大西洋海水和地中海海水上进行了一些初步试验。 对原水和处理水的几个参数进行了监测，包括总有机物含量 碳、总氮和浮游植物色素（HPLC分析）。微生物 通过流式细胞术分析（嗜酸性浮游细胞和细菌）。残余物 分析了氯化水中氧化剂和三卤甲烷随时间的变化。 使用再生纤维素膜对预处理水进行膜污染试验 超滤膜（MWCO 100 kDa）处于死端模式。结果显示，大约 通过混凝和双重培养基去除微生物种群的数量 过滤。相反，总有机碳（TOC）和总氮去除率几乎不显著。影响 中试试验期间研究的混凝剂剂量和pH值表明 在低pH（pH 5.9）条件下，混凝剂用量和较高的微生物和颗粒去除率。这个 直接过滤后，膜污染的可能性显著降低。添加 氯（次氯酸钠）导致形成溴仿，作为主要的三卤甲烷（THM）副产品。 我们的结果表明，直接氧化后THM前体显著减少 过滤。此外，后氯化略微减少了超滤（UF）膜污染，消除了污染 剩余的皮细胞浮游细胞。 包括7个参考文献、表格、图表。

This study investigated the impact of conventional pre-treatment on the fouling potential of seawater. The conventional treatment train consisted of coagulation (ferric chloride as the coagulant) followed by rapid dual media filtration (sand/anthracite). The impact of post-chlorination (sodium hypochlorite) was also studied. Laboratory experiments were carried out on Atlantic Ocean seawater and some pilot tests were performed on Mediterranean Sea water. Several parameters were monitored both in raw and treated waters including total organic carbon, total nitrogen and phytoplankton pigments (HPLC analysis). Microorganisms (picophytoplanktonic cells and bacteria) were also analyzed by flow cytometry. Residual oxidant and trihalomethanes were analyzed in the chlorinated water as a function of time. Membrane fouling tests were performed on the pretreated waters using a cellulose regenerated ultrafiltration membrane (MWCO 100 kDa) in dead-end mode. Results showed that about of the micro-organism population were removed by coagulation and dual media filtration. On the contrary, total organic carbon (TOC) and TN removals were almost insignificant. The influence of coagulant dose and pH studied during pilot scale experiments showed minor effect of coagulant dose and higher microorganism and particle removal at low pH (pH 5.9). The membrane fouling potential was significantly reduced after direct filtration. The addition of chlorine (sodium hypochlorite) led to the formation of bromoform as the dominant trihalomethane (THM) byproduct. Our results showed that THM precursors were significantly reduced after direct filtration. Also, post chlorination slightly reduced ultrafiltration (UF) membrane fouling and eliminated the remaining picophytoplanktonic cells. Includes 7 references, tables, figures.