This study aimed to investigate the adsorption performance of a macroalgae-based biocomposite as a biosorbent of water-soluble hydrocarbons (WSH) like BTEXN (benzene, toluene, ethylbenzene, xylenes, and naphthalene) on packed bed columns. The effects of the inlet flow rate (0.3–1.1 mL/min), using naphthalene as a model, were analyzed and the operation parameters are described. The registered breakthrough volume increased from 12 to 52 mL at an EBCT of 4 and 20 min, respectively. The breakthrough curves profiles of the competitive biosorption of BTEXN were modeled by five well-accepted dynamic adsorption models known as Thomas, Clark, Dose-Response, BDST, and Yoon-Nelson. The biocomposite swelling degree and the external mass transfer limitations are the main factors influencing the adsorption process at different inlet fluxes, a result that was corroborated by the linearized Yoon-Nelson model. In the case of multicomponent systems, the hydrocarbon hydrophobicity determined the composite selectivity (N > X > E > T > B), with breakthrough volume values from 7.51 to 14.33 mL for natural water, and from 12.14 to 28.66 mL for deionized water. Finally, the evaluated biocomposite showed to be adequate for the continuous biosorption of water-soluble hydrocarbons.

这项研究旨在研究基于大型藻类的生物复合物在填充床色谱柱上作为BTEXN（苯，甲苯，乙苯，二甲苯和萘）之类的水溶性烃（WSH）的生物吸附剂的吸附性能。以萘为模型，分析了入口流速（0.3-1.1 mL / min）的影响，并描述了运行参数。在4分钟和20分钟的EBCT时，记录的突破体积分别从12 mL增加到52 mL。BTEXN竞争性生物吸附的突破曲线曲线是通过五个公认的动态吸附模型建模的，这些模型被称为Thomas，Clark，Dose-Response，BDST和Yoon-Nelson。生物复合材料的溶胀度和外部传质限制是影响不同入口通量下吸附过程的主要因素，线性Yoon-Nelson模型所证实的结果。在多组分系统的情况下，烃的疏水性决定了复合物的选择性（N> X> E> T> B），天然水的突破体积值为7.51至14.33 mL，去离子水的突破体积值为12.14至28.66 mL。最终，所评估的生物复合物足以满足水溶性碳氢化合物的连续生物吸附。