Sanitary landfill leachates usually have characteristics that depend on the region where they are generated and according to the age of the landfill, which is why a unique treatment for their sanitation has not been found. However, the adsorption preceded by the Fenton process has been proven to be highly efficient at removing contaminants. In this study, the adsorptive capacity of two types of activated carbon, granular and powdered, was analyzed to determine which was more efficient in the adsorption stage in the Fenton-adsorption process. Likewise, its behavior was analyzed using three isotherm models (Langmuir, Freundlich and Temkin), testing the raw leachate and the Fenton-treated one with both carbons. The adsorption that is carried out on the carbons is better adjusted to the Freundlich and Temkin models. It concludes that multilayers, through the physical adsorption, carry out the adsorption of pollutants on the surface of the carbons. The results show that, statistically, granular activated carbon is more efficient at removing chemical oxygen demand (COD), and powdered activated carbon removes color better. Finally, an adsorption column was designed for the Fenton-adsorption process that was able to remove 21.68 kgCOD/kg carbon. Removal efficiencies for color and COD were >99%.

中文翻译：

---

芬顿吸附法处理垃圾渗滤液的活性炭类型选择

卫生垃圾填埋场渗滤液通常具有取决于其产生地区和垃圾填埋场年龄的特性，这就是为什么尚未找到对其卫生进行独特处理的原因。然而，Fenton 工艺之前的吸附已被证明在去除污染物方面非常有效。在这项研究中，分析了颗粒状和粉末状两种活性炭的吸附能力，以确定哪种在芬顿吸附过程的吸附阶段更有效。同样，使用三种等温线模型（Langmuir、Freundlich 和 Temkin）分析了其行为，测试了原始渗滤液和用两种碳进行芬顿处理的渗滤液。在碳上进行的吸附更好地适应 Freundlich 和 Temkin 模型。它的结论是多层，通过物理吸附，对碳表面进行污染物的吸附。结果表明，从统计学上讲，颗粒活性炭在去除化学需氧量 (COD) 方面更有效，粉状活性炭更好地去除颜色。最后，为芬顿吸附工艺设计了一个吸附柱，能够去除 21.68 kgCOD/kg 碳。颜色和 COD 的去除效率 >99%。