Method for degrading persistent organic pollutants in industrial and agricultural contaminated soil based on activation of persulfate by triiron tetrasulfide

• Main Authors: LI YONGTAO, YI JIACHUN, KE MEIGUO, LIN XUEMING
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2019
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention discloses a method for degrading persistent organic pollutants in industrial and agricultural contaminated soil based on activation of a persulfate by triiron tetrasulfide, and belongs to the technical field of environmental organic pollutant degradation. The method utilizes the triiron tetrasulfide as an activator and the persulfate as an oxidant to degrade single or composite organic pollutants in the soil, wherein a removal rate of bisphenol A reaches 93% or more. According to the method provided by the invention, the reaction can be carried out under normal temperature and normal pressure, and the method has the advantages of a wide applicable pH range, high efficiency and environmental friendliness; the materials used in the method do not cause secondary pollution, additional energy such as light and ultrasounds does not need to be provided, so that the energy is saved; and the method is simple and convenient to operate and easy to promote; therefore the method has higher application prospe