Method for removing chlorite in water through aluminum salt activated sulfite system

The invention provides a method for removing chlorite in water through an aluminum salt activated sulfite system, and belongs to the technical field of drinking water treatment. The method comprises the following steps: step 1, adding an aluminum salt into a chlorite aqueous solution containing background pollutants, and fully stirring and mixing to react for 1-10 minutes to obtain a mixed solution; and 2, adding any one of sulfite, hydrosulfite and dithionite into the mixed solution, and reacting at a preset temperature for a preset time so as to degrade the chlorite. According to the method, sulfite is activated by aluminum salt in a dark system to generate a large number of reducing groups, and efficient and green degradation of chlorite is achieved. 本发明提供了一种铝盐活化亚硫酸盐体系去除水中亚氯酸盐的方法，属于饮用水处理技术领域。该方法包括以下步骤：步骤1，在含有背景污染物的亚氯酸盐水溶液中，加入铝盐，充分搅拌混合反应1 min~10 min，得到混合溶液；步骤2，将亚硫酸盐、亚硫酸氢盐以及连二亚硫酸盐中的任意一种加入混合溶液中，在预定温度下反应预定时间，从而降解亚氯酸盐。该方法通过无光体系下铝盐活化亚硫酸盐产生大量还原性基团，实现了对亚氯酸盐高效、绿色降解。