Method for recycling silver from silver-containing aqueous solution

The invention discloses a method for recycling silver from silver-containing aqueous solution containing inorganic sulfur oxide. The method comprises the following steps: adjusting the pH of the silver-containing aqueous solution containing inorganic sulfur oxide to 7 or above; adding a reducing agent in the silver-containing aqueous solution to adjust the oxidation reduction electric potential ofthe solution to -300mV or below to carry out reduction on silver in the solution; and then, adding inorganic polymer in the silver-containing aqueous solution to precipitate reduced flocculation andrecycle silver. The method can efficiently recycle silver with high recycling rate from silver-containing aqueous solution containing sodium sulfite and other inorganic sulfur oxide without complicated operation and has the advantages of high stability and low cost. 本发明公开了种从含有无机硫氧化物的含银水溶液中回收银的方法，包括所述方法将含有无机硫氧化物的含银水溶液的pH调节至7以上，向含银水溶液中添加还原剂调整溶液氧化还原电位于-300mV以下将溶液中的银还原，然后再向含银水溶液中添加无机聚合物使还原后的银絮凝沉淀，将银回收。本发明方法无须复杂的操作便能够以高回收率从含有亚硫