Microporous activated carbon (MAC) was synthesized from winemaking waste and was used to adsorb Mn(VII) from aqueous solutions under various experimental conditions. Moreover, Mn(VII) adsorption on MAC was compared to other adsorbents and an ion‐exchange resin, as well as those of other anionic complexes. Langmuir type‐1 isotherm best fitted the adsorption process, whereas for all the studied temperatures (30°C‐60°C), the experimental data fitted well with the pseudo‐second‐order kinetic model. The calculated activation energy was 8.1 kJ · mol⁻¹, suggesting that Mn(VII) adsorption onto the MAC was a physical adsorption driven process. A reduction of Mn(VII) to Mn(II) occurs at a pH of 1 with the precipitation of MnO₂. Mn(VII) recovery from loaded‐activated carbon using acidic conditions and different variables was investigated.

中文翻译：

---

酿酒废料中的微孔吸附剂，用于回收液体溶液中的Mn（VII）

从酿酒废料中合成微孔活性炭（MAC），并在各种实验条件下将其用于吸附水溶液中的Mn（VII）。此外，将Mn（VII）在MAC上的吸附与其他吸附剂和离子交换树脂以及其他阴离子络合物的吸附剂进行了比较。Langmuir 1型等温线最适合吸附过程，而在所有研究温度（30°C-60°C）下，实验数据与拟二级动力学模型吻合得很好。计算出的活化能为8.1 kJ·mol ^-1，表明Mn（VII）吸附到MAC上是物理吸附驱动过程。在pH为1的情况下，随着MnO ₂的沉淀，Mn（VII）还原为Mn（II）。。研究了使用酸性条件和不同变量从负载活性炭中回收Mn（VII）。