Manganese contamination is ubiquitous in ground water. Water eutrophication also exaggerates manganese release and contamination in surface water. However, conventional manganese(II) removal process through sand filter is low-efficiency and long-term ripening. Manganese exceeding standard is still a bottleneck issue for drinking water plants. To provide a quick-setup and low-cost means, we invented an accelerated catalytic oxidation filtration process through porous zeolite filter with dynamically coating of manganese oxide nanocatalysts. In dynamic filtration process, the addition of chlorine less than redox stoichiometric consumption can efficiently remove dissolved manganese(II) from contaminated tap water, ground water and Songhua river water. Characterization results showed that a continuous manganese(III)/(IV) oxide nanosheet catalyst was dynamically in situ-growing and assembled into 3D porous superstructure in the reactive Zeolite@MnO_x(s) filter. Active Mn(III) species on the edges of MnO_x(s) nanosheets were dynamically generated and transferred into stable Mn(IV) species on the layer-structured surface. The cycling transformation of manganese(III)/(IV) species was responsible for the accelerated catalytic oxidation of dissolved manganese(II) by chlorine. Without process changes in drinking water plant, the porous Zeolite@MnO_x(s) media could be feasibly integrated onto the existing sand filtration tanks for emergence handling of manganese(II) contamination. This novel reactive Zeolite@MnO_x(s) filter with higher hydraulic conductivity provides a high-efficiency, scalable and low-cost technique for the manganese(II) removal from various of water environments.

锰污染在地下水中无处不在。水体富营养化也加剧了地表水中锰的释放和污染。然而，传统的砂滤除锰工艺效率低，熟化时间长。锰超标仍然是饮用水厂的瓶颈问题。为了提供一种快速设置和低成本的方法，我们发明了一种通过多孔沸石过滤器动态涂覆氧化锰纳米催化剂的加速催化氧化过滤工艺。在动态过滤过程中，氯的添加量小于氧化还原化学计量消耗量，可有效去除污染自来水、地下水和松花江水中的溶解锰（II）。在反应性沸石@MnO _x (s) 过滤器中原位生长并组装成 3D 多孔超结构。MnO _x (s) 纳米片边缘上的活性 Mn(III) 物种动态生成并转移到层状结构表面上的稳定 Mn(IV) 物种。锰 (III)/(IV) 物种的循环转化是氯对溶解的锰 (II) 加速催化氧化的原因。在不改变饮用水厂的工艺的情况下，多孔沸石@MnO _x (s) 介质可以切实可行地集成到现有的砂滤池中，用于锰 (II) 污染的紧急处理。这种新型活性沸石@MnO _x(s) 具有更高水力传导率的过滤器为从各种水环境中去除锰 (II) 提供了一种高效、可扩展和低成本的技术。