本powerpoint演示文稿首先介绍了自然有机物（NOM）对微滤/超滤（MF/UF）膜污染的背景信息，以及 NOM凝胶层。混凝剂/吸附剂与 介绍了膜，重点介绍了以下内容: 目标和基本原则； 有使用传统混凝剂/吸附剂的经验；和 有使用HAOPs的经验。介绍了吸附剂投加程序的重要性，以及确定和测试潜在的吸附机理 通过吸附剂减少污垢，重点是 关键工艺（NOM和污染物沉积）的位置，以及 不同吸附剂投加策略的影响。本文提出了凝胶形成效应的假设 以及预沉积增强，包括以下几点: 凝胶由与蛋白质竞争的分子组成 吸附剂上结合位点的污染物； 凝胶的形成减少了吸附剂中的竞争 从而延迟污染物的突破；和 在直接过滤前的分批吸附中，凝胶- 形成 分子相互竞争，减少对蛋白质的去除 污染物，所以污染物到达膜的速度更快， 导致更快的结垢。包括数字。

This powerpoint presentation begins by providing background information on the fouling of microfiltration/ultrafiltration (MF/UF) membranes by natural organic matter (NOM), and the role of NOM gel layer. The use of coagulants/adsorbents in conjunction with membranes is presented, focusing on the following: goals and underlying principle; experience with conventional coagulants/adsorbents; and, experience with HAOPs. The importance of the adsorbent dosing procedure is presented, along with identifying and testing potential mechanisms for fouling reduction by adsorbents, focusing on location of key processes (NOM and foulant deposition), and the effect of different adsorbent dosing strategies. The presentation presents the Hypothesis for Effect of Gel Formation and Enhancements by Pre-Deposition that includes the following points: gel comprised of molecules that compete with foulants for binding sites on adsorbent; gel formation reduces competition in adsorbent layer and thereby delays breakthrough of foulant; and, in batch adsorption prior to direct filtration, gel-forming molecules compete and reduce removal of foulant, so foulant reaches membrane faster, leading to faster fouling. Includes figures.