Method for repairing polluted site through horizontal segmented pressure injection

• Main Authors: YANG HUIPING, ZHANG SHUCHANG, WANG LIGANG, XU WENBO, YIN WEI, SUI ZONGJIN, LIU JINLONG, LI LULU, ZHAI YONG, WEN HUANJUN, WANG WENWEN, GAO YUE, LI YANGMING
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2023
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention relates to a method for repairing a polluted site by adopting horizontal segmented pressure injection, which comprises the following steps: paving polluted soil excavated from the polluted site in a disposal area to obtain a first layer of polluted soil; the positions of injection holes are determined according to a preset interval, and the segmented injection devices are arranged at the positions of the corresponding injection holes; a gravel filler is placed on the periphery of the injection device, and a geomembrane is placed above and/or below the gravel filler; and after laying is completed, an injection pump is started, an agent is injected into the injection device according to a preset flow range, and the contaminated soil obtained after laying is completed is repaired. According to the method provided by the invention, the medicament is injected and uniformly diffused in a specified layer under relatively high pressure through the horizontal sectional injection device. 本发明涉及一种采用水平分段压力注入