本powerpoint演示文稿首先简要概述了项目目标，即检查产算法有机物（AOM）对反渗透的影响 （RO）脱盐过程中的膜。反渗透实验是在一台半自动化的机器上进行的 实验室规模系统。对富含藻类的“赤潮”海水进行的测试导致 通量显著下降。已确定单细胞海洋甲藻是导致 红潮事件。荧光显微镜可用于评估和分析 计数藻类细胞。进行了一系列AOM分馏实验 表演。实验结果对全面研究有以下启示- 规模 行动，包括: 相当高水平的有机物会导致 只有轻微的短期流量下降； AOM确实在厚层中积累； 膜电阻远高于膜电阻 滤饼层阻力； 实验室规模的测试应该包括尸检； 建议经常清洗，即使在 性能稳定；藻类细胞的剪切释放溶解的 AOM；和 入口结构和预处理技术 如果可能，应设计为低剪切。在这项研究中开发的技术可以 对未来工作有价值，包括: 污染物的荧光测量 可能有助于区分 细菌污染； 藻类和细菌的二分法可以 被探索；和 可以制定预处理策略 去除藻类细胞，减少AOM 释放包括数字。

This powerpoint presentation begins by providing a brief overview of the project objective of examining the effect of algogenic organic matter (AOM) on reverse osmosis (RO) membranes during desalination. RO experiments were performed on a semi-automated bench-scale system. A test of algal-laden "red tide" seawater resulted in significant flux decline. It was determined that unicellular marine dinoflagellate algae are the cause of red tide events. Fluorescence microscopy can be used to evaluate and count algal cells. A set of AOM fractionation experiments was performed. Experimental results have the following implications for full-scale operation, including: fairly high levels of organic matter cause only minor short-term flux decline; AOM does accumulate in thick layers; membrane resistance is much higher than cake-layer resistance; bench-scale tests should include autopsy; frequent cleanings are suggested even when performance is steady; shearing of algal cells releases dissolved AOM; and, inlet structures and pretreatment technologies should be designed for low shear if possible. Techniques developed during this research could be valuable for future work, including the following: fluorescence measurements of foulants could help distinguish between algogenic and bacterial fouling; the dichotomy of algae and bacteria can be explored; and, pretreatment strategies can be developed to remove algal cells and minimize AOM release. Includes figures.