本文讨论了改性颗粒污泥对溶解性天然有机物（DOM）的强化去除 活性炭（GAC）。对GAC进行了修改 分别通过高温氨水和蒸汽处理。两种技术 增加了碳的中孔度和表面碱度。吸附等温线表明 氨水和蒸汽处理的碳表现出比普通碳更高的溶解有机物（DOM）吸收 前驱体主要是由于碳孔的扩大。快速小规模柱状试验 （RSSCTs）表明，蒸汽处理几乎使处理水的体积增加了一倍，达到 与维珍GAC相比，实现50%的突破。几种浸铁方法 方法是将铁物种装载到碳表面。表面积归一化 等温线表明，一些浸铁碳由于温度升高而具有更高的DOM吸收率 碳表面存在铁物种。然而，并不是所有的铁物种都是如此 有利于吸附。铁的氧化状态和颗粒大小似乎很重要。 预期GAC具有更高的介孔度和适当的铁分散在表面 从天然水体中摄取更高的DOM。包括12个参考文献、表格和图表。

This paper discusses enhanced removal of dissolved natural organic matter (DOM) by modified granular activated carbon (GAC). GAC was modified by high temperature ammonia and steam treatment, respectively. Both techniques increased the carbon mesoporosity and surface basicity. Adsorption isotherms indicated that ammonia- and steam-treated carbons exhibited higher dissolved organic matter (DOM) uptake than the precursor mainly due to the enlargement of carbon pores. Rapid small scale column tests (RSSCTs) showed that steam treatment almost doubled the volume of treated water to reach 50% breakthrough compared to the virgin GAC. Several iron impregnation methods were used to load iron species on the carbon surface. Surface-area normalized isotherms showed that some iron impregnated carbons had higher DOM uptake due to the presence of iron species on the carbon surface. However, not all the iron species were favorable for the adsorption. Iron oxidation state and particle size appear to be important. GAC with higher mesoporosity and proper iron dispersion on the surface was expected to exhibit higher DOM uptakes from natural waters. Includes 12 references, tables, figures.