Chromium (Cr) is widely used in industrial processes and is considered a major source of pollution when released to the environment. Of particular concern, hexavalent chromium (Cr(VI)) is amongst the most toxic heavy metals affecting human health and living organisms when fugitive emissions contaminate aqueous environments. Consequently, its removal and recovery are priorities for environmental remediation in the context of the circular economy. In this study, modified hydrochar (MHC) was generated by hydrothermal carbonisation of acid-treated (H₂SO₄) poultry litter (PL) and investigated for its ability to adsorb Cr(VI) from aqueous solution in batch studies. Recovery of Cr(VI) and the regeneration potential of MHC were also evaluated.

中文翻译：

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使用酸改性家禽垫料衍生的水碳去除水溶液中的六价铬 (Cr(VI))：吸附、再生和再利用

铬 (Cr) 广泛用于工业过程，被认为是释放到环境中的主要污染源。特别值得关注的是，当无组织排放物污染水环境时，六价铬 (Cr(VI)) 是影响人类健康和生物体的毒性最强的重金属之一。因此，在循环经济的背景下，其清除和恢复是环境修复的优先事项。在这项研究中，改性水炭 (MHC) 是通过酸处理 (H ₂ SO ₄ ) 家禽垫料 (PL)的水热碳化产生的，并在批量研究中研究了其从水溶液中吸附 Cr(VI) 的能力。还评估了 Cr(VI) 的回收率和 MHC 的再生潜力。