Heavy metal ion fixing and loading material as well as preparation method and application thereof

The invention relates to a heavy metal ion fixing and loading material as well as a preparation method and application thereof. Based on 100 parts by weight of humic acid, the material is prepared from the following raw materials: 100 parts of humic acid; 10 to 100 parts of organic alcohol; 100 to 500 parts of water; 5-20 parts of ammonium salt; and 1-10 parts of a plant growth promoter. The heavy metal ion immobilizing and loading material provided by the invention can permanently immobilize and block heavy metal ions in waste drilling fluid in situ through multi-arm chelation, realizes irreversible reaction, effectively balances soil acidity and alkalinity, immobilizes the heavy metal ions and treats and repairs polluted soil; therefore, the method can be applied to waste drilling fluid heavy metal ion treatment in the petroleum exploration and development process. 本发明涉及一种重金属离子的固定负载材料及其制备方法和应用。以腐殖酸为100重量份数计，该材料的制备原料包括如下组分：腐殖酸100份；有机醇10～100份；水100～500份；铵盐5～20份；植物生长促进剂1～10份。本发明提供的重金属离子的固定负载材料能够通过多臂鳌合作用原位永久固定和阻