Heavy metal sewage treatment method

The invention discloses a heavy metal sewage treatment method. An adsorbent is added into heavy metal sewage, the pH of the sewage is adjusted, the adding amount of the adsorbent is controlled, and stirring is performed for a certain period of time to remove heavy metal ions in the sewage. The adsorbent is hollow ferroferric oxide coated with a metal-modified carbon material, has a large surface area, an excellent pore channel structure and an active group, has a very good removal effect on heavy metals, and is an ideal material for heavy metal sewage treatment. 本发明公开了一种重金属污水处理方法。本发明通过将吸附剂添加到重金属污水中，通过调节污水的pH，控制吸附剂的加入量，搅拌一定时间以去除污水中的重金属离子。所述的吸附剂是通过金属改性的碳材料包覆的空心四氧化三铁，其具有较大的表面积，优异的孔道的结构以及活性基团，对重金属具有很好的去除效果，是用于重金属污水处理的理想材料。