Novel repairing agent for heavy metal and organic matter combined polluted soil

• Main Authors: WANG DONG, LIU HAI, DING LIANG, LUO HAO, QU CHANGSHENG, XIA WEIYI
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2021
• Subjects: ADHESIVES; CHEMISTRY; DYES; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; NATURAL RESINS; PAINTS; POLISHES

The invention discloses a novel repairing agent for heavy metal and organic matter combined polluted soil. The repairing agent comprises the following components in percentage by mass: 20-40% of titanium gypsum modified coal gas waste residue; 20-40% of a red mud modified blue-green algae-based carbon material; and 20-60% of steel pickling waste liquid. The main components of the repairing agent are industrial and biological wastes, the material source is wide, the repairing agent is environment-friendly, heavy metal and organic pollutants can be synchronously and efficiently treated, the leaching toxicity of soil pollutants is remarkably reduced, pollution treatment with wastes is realized, and the environmental safety of polluted soil is improved; and meanwhile, physical and chemical properties of soil can be improved, and economic and environmental benefits are remarkable. 本发明公开了一种用于重金属与有机物复合污染土壤的新型修复剂，所述的修复剂按质量百分数，包括以下组分：钛石膏改性煤制气废渣：20～40％；赤泥改性蓝藻基炭质材料：20～40％；钢铁酸洗废液：20～60％。本发明的修复剂主要成分为工业和生物废弃物，材料来源广泛，环境友好，能