The residue derived from the alginate extraction from S. filipendula was applied for the biosorption of aluminum from aqueous medium. The adsorptive capacity of the residue (RES) was completely evaluated in batch mode. The effect of pH, contact time, initial concentration, and temperature was assessed through kinetic, equilibrium, and thermodynamic studies. The biosorbent was characterized prior and post-Al biosorption by N₂ physisorption, Hg porosimetry, He pycnometry, and thermogravimetry analyses. Equilibrium was achieved in 60 min. Kinetics obeys pseudo-second-order model at aluminum higher concentrations. Isotherms followed Freundlich model at low temperature (293.15 K) and D-R or Langmuir model at higher temperatures (303 and 313 K). Data modeling indicated the occurrence of both chemical and physical interactions in the aluminum adsorption mechanism using RES. The maximum adsorption capacity obtained was 1.431 mmol/g at 293 K. The biosorption showed a spontaneous, favorable, and exotherm character. A simplified batch design was performed, indicating that the residue is a viable biosorbent, achieving high percentages of removal using low biomass dosage.

来自S. filipendula的藻酸盐提取物的残留物用于从水性介质中生物吸附铝。残留物的吸附能力 (RES) 以分批模式完全评估。通过动力学、平衡和热力学研究评估 pH 值、接触时间、初始浓度和温度的影响。生物吸附剂通过 N _{2 在}铝生物吸附之前和之后进行表征物理吸附、汞孔隙率测定、氦比重测定和热重分析。在 60 分钟内达到平衡。在铝浓度较高时，动力学服从伪二阶模型。等温线在低温（293.15 K）下遵循 Freundlich 模型，在较高温度（303 和 313 K）下遵循 DR 或 Langmuir 模型。数据模型表明在使用 RES 的铝吸附机制中发生了化学和物理相互作用。在 293 K 下获得的最大吸附容量为 1.431 mmol/g。生物吸附显示出自发、有利和放热的特性。进行了简化的批次设计，表明残留物是一种可行的生物吸附剂，使用低生物量剂量即可实现高去除率。