Waste incineration fly ash heavy metal chelating agent and preparation method thereof

The invention discloses a waste incineration fly ash heavy metal chelating agent, which is characterized by comprising the following components in percentage by weight: 30 to 60 percent of beta-cyclodextrin-polyacrylamide polymer, 10 to 40 percent of polyamino acid and 20 to 40 percent of alpha type manganese dioxide nano material. The invention also discloses a preparation method of the chelating agent. The heavy metal chelating agent for the waste incineration fly ash is high in chelating capacity, high in stability and more suitable for treating heavy metal of the waste incineration fly ash. 本发明公开了一种垃圾焚烧飞灰重金属螯合剂，其特征在于，所述螯合剂按照重量百分比计包含如下含量的组分：β-环糊精-聚丙烯酰胺聚合物30～60％，聚氨基酸10～40％，α型二氧化锰纳米材料20～40％。本发明还公开了该螯合剂的制备方法。本发明的垃圾焚烧飞灰重金属螯合剂螯合能力强，稳定性好，更加适用于处理垃圾焚烧飞灰的重金属。