This series of technologies is applicable to the harmless treatment of soil contaminated by multiple heavy metals and the restoration of soil functions, as well as the treatment of black and odorous water bodies caused by organic pollution and the recovery of ecological functions in river basins. This technology has been applied in Changsha Fengchao Pigment Chemical Co., Ltd.

Changsha Fengchao Pigment Chemical Co., Ltd. was established through the legal restructuring of Changsha Pigment Chemical Plant. The pollution generated during the production process mainly includes cadmium, arsenic, zinc, lead, chromium, and small amounts of copper and mercury pollution. Nearly a century of chemical production has caused serious pollution to the local soil. The project used this product for remediation and treatment. By utilizing the multiple groups in the stabilizer rich in iron and phosphorus hydroxyl groups to bind with heavy metals, simultaneous stabilization of multiple metals such as cadmium, lead, and arsenic can be achieved. After treatment, the leaching concentration of heavy metals in the soil steadily meets the Class III surface water standard. After the implementation of this project, the Xiangjiang Goddess Park in Changsha has been built on the original site.