Repairing method and device for gas station polluted site

• Main Authors: LIU SIMIN, CHEN HONGKUN, LIU YULONG, CHEN CHANGZHAO, DU XIANYUAN, ZHANG KUNFENG, SONG JIAYU, YU WENHE
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2017
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention provides a repairing method and device for a gas station polluted site. The repairing method for the gas station polluted site comprises the steps that the polluted range of the gas station polluted site and concentration distribution of pollutants are determined; according to the soil gas phase extraction method, an extraction well and a ventilating well are laid, and an agent injection well is laid; soil gas phase extraction is conducted for fifteen days, an agent is injected into the agent injection well to react for 1-2 days, and after 2-3 days, soil gas phase extraction is continued; and the step (3) is repeatedly conducted till the pollutant concentration of the gas station polluted site is reduced to be 5%-10% of the original pollutant concentration, and repairing for the gas station polluted site is completed. The invention further discloses a repairing device for the gas station polluted site. According to the repairing method, the disadvantage that the pollutants with long carbon chain