Achieving the greatest cleanup efficiency with minimal footprint remains a paramount goal of the water treatment industry. Toxic organic compounds threaten drinking water safety and require effective pretreatment. Hydroxyl radicals produced by the Fenton process (Fe²⁺/H₂O₂) destroy organic contaminants based on their strong oxidation potential. An upgraded reaction using solid catalysts, referred to as the Fenton-like process, was recently adopted to avoid the ferric sludge generation during the conventional Fenton process. However, most heterogeneous Fenton-like catalysts operate optimally at pH 3–5 and quite weakly in near-neutral water bodies. Here, we evaluate the feasibility of an electrolytically localized acid compartment (referred to as the Ella process) produced by electrochemical water splitting under flow-through conditions to facilitate the Fenton-like process. The Ella process boosts the activity of an immobilized iron oxychloride catalyst >10-fold, decomposing organic pollutants at a high flow rate. The robust performance in complex water bodies further highlights the promise of this platform.

以最小的占地面积实现最大的净化效率仍然是水处理行业的首要目标。有毒有机化合物威胁饮用水安全，需要有效的预处理。芬顿法产生的羟基自由基 (Fe ²⁺ /H ₂ O ₂ ) 基于其强大的氧化潜力破坏有机污染物。最近采用了一种使用固体催化剂的升级反应，称为类芬顿工艺，以避免在传统芬顿工艺中产生铁泥。然而，大多数非均相类芬顿催化剂在 pH 3-5 下运行最佳，而在接近中性的水体中则非常弱。在这里，我们评估了电解局部酸室（称为Ella过程）在流通条件下通过电化学水分解产生，以促进类芬顿过程。的艾拉过程提升固定化铁酰氯催化剂的活性> 10倍，在高流速分解有机污染物。在复杂水体中的强大性能进一步突出了该平台的前景。