本发明公开了一种利用枯草芽孢杆菌发酵制备尾矿淋洗液的方法，包括如下步骤：粉碎豆或豆粕至粒径为2‑3 mm, 加水混合后高温灭菌。冷却至室温后加入枯草芽孢杆菌粉末，置于恒温摇床上培养48‑72h 得到混合发酵液；将混合发酵液静置沉淀完全后，取上层液体即可得到尾矿的淋洗液。本发明原料简单易得，制备工艺简单，大大降低了制备成本，而且不会对尾矿治理带来二次污染。
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