Method for treating high-concentration manganese and sulfate radical water body through combination of manganese sand filtration and nanofiltration

The invention discloses a method for treating a high-concentration manganese and sulfate radical water body through combination of manganese sand filtration and nanofiltration. The method comprises the steps of carrying out manganese sand filtration on raw water to remove manganese ions and heavy metal ions, carrying out nanofiltration to remove sulfate ions, manganese ions, heavy metal ions and hard ions, and then carrying out manganese sand filtration on a water body again to further move remaining manganese ions and heavy metal ions. According to the method provided by the invention, the water body polluted with the manganese ion concentration being within 180mg/L and sulfate radical being within 1000mg/L can meet the drinking water standard after being treated, the removal rate of thehard ions can reach 70 percent or more, and less nickel, chromium, cadmium and other heavy metal ions existing in the water body can also be basically and completely removed. 本发明公开了种锰砂过滤与纳滤组合处理高浓度锰及硫酸根水体的方法。将原水经过锰砂过滤除去锰离子和重金属