REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; IIT/LTA - Instituto de Investigaciones Tecnológicas, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal.
Bioresour Technol. 2019 Nov;292:121973. doi: 10.1016/j.biortech.2019.121973. Epub 2019 Aug 9.
Twelve biochars from forest and agri-food wastes (pruning of Quercus ilex, Eucalyptus grandis, Pinus pinaster, Quercus suber, Malus pumila, Prunus spinosa, Cydonia oblonga, Eriobotrya japonica, Juglans regia, Actinidia deliciosa, Citrus sinensis and Vitis vinifera) were investigated as potential low-cost and renewable adsorbents for removal of a commonly used pharmaceutical, fluoxetine. Preliminary adsorption experiments allowed to select the most promising adsorbents, Quercus ilex, Cydonia oblonga, Eucalyptus, Juglans regia and Vitis vinifera pruning material. They were characterized by proximate, elemental and mineral analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, determination of specific surface area and pH at the point of zero charge. Batch and equilibrium studies were performed, and the influence of pH was evaluated. The equilibrium was reached in less than 15 min in all systems. The maximum adsorption capacity obtained was 6.41 mg/g for the Eucalyptus biochar, which also demonstrated a good behavior in continuous mode (packed column).
十二种生物炭，分别来自森林和农业食品废弃物（栓皮栎、巨桉、油松、栓皮栎、苹果、多刺李、榅桲、中华猕猴桃、胡桃、猕猴桃、甜橙和酿酒葡萄），被用作一种常用药物氟西汀的潜在低成本可再生吸附剂。初步的吸附实验允许选择最有前途的吸附剂，栓皮栎、榅桲、巨桉、胡桃和酿酒葡萄修剪材料。它们的特性通过近似值、元素和矿物分析、热重分析、傅里叶变换红外光谱、比表面积和零电荷点 pH 值来确定。进行了批量和平衡研究，并评估了 pH 值的影响。在所有体系中，不到 15 分钟即可达到平衡。从巨桉生物炭中获得的最大吸附容量为 6.41mg/g，它在连续模式（填充柱）中也表现出良好的性能。
