天然有机物（NOM）已被证明会形成不良的消毒副产物 （DBPs）。自美国环境保护局（USEPA）颁布第一阶段消毒副产品规则以来 （第一阶段DBPR）1998年，作为DBP前体的NOM的去除受到监管 通过强化凝血。MIEX？DOC树脂的目标是去除阴离子 通过交换阴离子官能团之间的位置（例如。， 羧酸）和氯离子（Cl-）。这项研究的重点是描述 NOM分离物和天然水体中NOM的MIEX吸附。增强型 混凝基质（总有机碳（TOC）和碱度不同的源水）被用作 识别和选择美国各地天然水域的框架。 在所有情况下， 基于原水和MIEX处理水的XAD 8/4树脂分馏，有效 观察到疏水性、透明性和亲水性NOM酸的去除。这个 清除透明和亲水（低分子量）酸是值得注意的， 考虑到凝固在去除这些极性NOM组分方面的无效性。包括4个参考文献、表格和图表。

Natural organic matter (NOM) has been shown to form undesirable disinfection byproducts (DBPs). Since the US Environmental Protection Agency (USEPA) promulgated the Stage 1 disinfection byproducts rule (Stage 1 DBPR) in 1998, the removal of NOM, as a DBP precursor, has been regulated by enhanced coagulation. The MIEX¿ DOC resin targets the removal of anionic constituents of NOM by exchanging the sites between anionic functional groups (e.g., carboxylic acids) and chloride ion (Cl-). This research has focused on characterization of MIEX adsorption of NOM isolates and bulk NOM from natural waters. An enhanced coagulation matrix (source waters with varying total organic carbon (TOC) and alkalinity) was used as a framework for identifying and selecting natural waters from around the U.S. In all cases, based on XAD 8/4 resin fractionation of raw and MIEX treated waters, effective removals of hydrophobic, transphilic, and hydrophilic NOM acids were observed. The removals of transphilic and hydrophilic (low molecular weight) acids are noteworthy, given the ineffectiveness of coagulation in removing these polar NOM fractions. Includes 4 references, tables, figures.