The invention discloses a recycling low-cost treatment method for field heavy
metal polluted soil. The method comprises the following steps that firstly,
biomass powder and industrial field clay mineral are evenly mixed according to the weight ratio of 1:10-25, the mixture is obtained, 10 g of the mixture is taken and placed in an
anhydrous magnesium chloride solution, 150-300 mL of water is added, deposition operation is conducted, sediments are obtained, heating and pressurizing synthesis is conducted in a
hydrothermal reaction kettle, the synthesis temperature is 100-200 DEG C, the synthesis pressure is 7-20 Mpa, and
drying is conducted under the condition that the temperature is 200-300 DEG C; and the vacuum condition is adopted. According to the recycling low-cost treatment method forfield heavy
metal polluted soil, releasing safety of heavy
metal in a
brick body is more stable, meanwhile, the manufactured
brick body material conforms to the
brick body
industry standard and can serve as a building and garden roadbed brick body material, the purpose of recycling utilization of the heavy metal polluted soil is achieved, the repairing targets that secondary
pollution and
pollution transferring are avoided, and
waste recycling utilization is achieved are achieved, and the recycling low-cost treatment method is more environment-friendly and practical.