Abstract Removal of mercury(II) (Hg(II)) from aqueous media by a new biosorbent was carried out. Natural Polyporus squamosus fungus, which according to the literature has not been used for the purpose of Hg(II) biosorption before, was utilized as a low-cost biosorbent, and the biosorption conditions were analyzed by response surface methodology (RSM). Medium parameters which were expected to affect the biosorption of Hg(II) were determined to be initial pH, initial Hg(II) concentration (Co), temperature (T (°C)), and contact time (min). All experiments were carried out in a batch system using 250 mL fl asks containing 100 mL solution with a magnetic stirrer. The Hg(II) concentrations remaining in fi ltration solutions after biosorption were analyzed using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Based on the RSM results, the optimal conditions were found to be 5.30, 47.39 mg/L, 20°C and 254.9 min for pH, Co, T (°C), and contact time, respectively. Under these optimal conditions, the maximum biosorbed amount and the biosorption yield were calculated to be 3.54 mg/g and 35.37%, respectively. This result was confi rmed by experiments. This result shows that Polyporus squamosus has a specifi c affi nity for Hg ions. Under optimal conditions, by increasing the amount of Polyporus squamosus used, it can be concluded that all Hg ions will be removed

中文翻译：

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响应面法优化猪苓作为新型生物吸附剂对水介质中Hg(II)离子的吸附条件

摘要 使用一种新型生物吸附剂从水介质中去除汞 (II) (Hg(II))。根据文献报道，天然猪苓真菌之前未用于 Hg(II) 生物吸附，被用作低成本生物吸附剂，并通过响应面法 (RSM) 分析生物吸附条件。预计会影响 Hg(II) 生物吸附的介质参数被确定为初始 pH、初始 Hg(II) 浓度 (Co)、温度 (T (°C)) 和接触时间 (min)。所有实验均在批处理系统中进行，使用含有 100 mL 溶液的 250 mL 液体和磁力搅拌器。使用电感耦合等离子体发射光谱法 (ICP-OES) 分析生物吸附后残留在过滤溶液中的 Hg(II) 浓度。根据 RSM 结果，发现 pH、Co、T (°C) 和接触时间的最佳条件分别为 5.30、47.39 mg/L、20°C 和 254.9 分钟。在这些最佳条件下，计算出的最大生物吸附量和生物吸附产率分别为 3.54 mg/g 和 35.37%。这一结果得到了实验的证实。该结果表明猪苓对 Hg 离子具有特异性亲和力。在最佳条件下，通过增加猪苓的用量，可以得出结论，所有的汞离子都会被去除 该结果表明猪苓对 Hg 离子具有特异性亲和力。在最佳条件下，通过增加猪苓的用量，可以得出结论，所有的汞离子都会被去除 该结果表明猪苓对 Hg 离子具有特异性亲和力。在最佳条件下，通过增加猪苓的用量，可以得出结论，所有的汞离子都会被去除