Metallic iron (Fe⁰) has been increasingly used to remove toxics from water over the past three decades. However, the idea that metallic iron (Fe⁰) is not an environmental reducing agent has been vigorously refuted. Researchers presenting their findings in a scientific journal have to accept the burden of proving that their argument has any validity. This 30-year-lasting discussion within the Fe⁰ remediation community is alien to electro-chemists, as it is a century-old knowledge. Nevertheless, the peer-reviewed literature on “remediation using Fe⁰” seems to be dominated by evaluators thinking that Fe⁰ is a reducing agent. This communication challenges the view that Fe⁰ donates any electron to any dissolved species. The sole goal is to reconcile a proven efficient technology with its scientific roots and enable the design of better Fe⁰ remediation systems.

在过去的三十年里，金属铁 (Fe ⁰ ) 越来越多地用于去除水中的有毒物质。然而，金属铁（Fe ⁰）不是环境还原剂的观点已被大力驳斥。在科学期刊上发表他们的发现的研究人员必须承担证明他们的论点有任何有效性的负担。^{Fe 0}修复界长达 30 年的讨论对于电化学家来说是陌生的，因为它是一个百年历史。^{然而，关于“使用 Fe 0}进行修复”的同行评议文献似乎被认为 Fe ⁰是还原剂的评估者所主导。这种交流挑战了 Fe ⁰将任何电子捐赠给任何溶解的物种。唯一的目标是将经过验证的高效技术与其科学根源相协调，并能够设计出更好的 Fe ⁰修复系统。