Abstract

Landfill leachate treatment is of utmost importance for pollution prevention. For this reason, in this study the performance of different types of activated carbons was monitored for applying in the Fenton-adsorption treatment of landfill leachate. Six carbon of different mesh and nature were studied, all of granular type. Only with the Fenton treatment a COD removal of >75% was achieved. Batch experiments were done to conduct adsorption isotherm studies and an adsorption column test was subsequently performed for Fenton-treated leachate. Granular coconut activated carbon revealed a better performance in removal of chemical oxygen demand (COD) and color during batch experiments. However, the activated carbon Gama L 8 × 30 (mesoporous) achieved removals >99% of COD and color in the adsorption column, removing 19.26 kg COD/kg carbon. Finally, it was found that the adsorption is carried out in multilayers with both carbons, having an adjustment with the models Temkin (80%) and Freunlich (96%) for granular coconut 12 × 40 and the Gama L 8 × 30, respectively.

摘要

垃圾渗滤液处理是污染防治的重中之重。因此，在本研究中，监测了不同类型活性炭的性能，以应用于垃圾渗滤液的芬顿吸附处理。研究了六种不同目数和性质的碳，均为粒状。只有使用 Fenton 处理，才能实现 >75% 的 COD 去除率。进行了批次实验以进行吸附等温线研究，随后对芬顿处理的渗滤液进行了吸附柱测试。在批量实验中，颗粒状椰子活性炭在去除化学需氧量 (COD) 和颜色方面表现出更好的性能。然而，活性炭 Gama L 8 × 30（介孔）在吸附柱中去除了 >99% 的 COD 和颜色，去除了 19.26 kg COD/kg 碳。最后，