Efficient organic pollution site groundwater-gas two-phase extraction system

• Main Authors: CHEN LONG, LIANG JIAXU, ZHANG QIAN, WANG YUYU, ZHANG LIMING, LI QINGWU
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CHEMISTRY; FIXED CONSTRUCTIONS; INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER; METALLURGY; SEWERAGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; WATER SUPPLY

The utility model provides an efficient organic pollution site groundwater gas two-phase extraction system which comprises an extraction system and a pressure system, the pressure system is provided with a pressure well, the pressure well is a cased well, an outer pipe is provided with a screen for injecting high-pressure water or solution, and an inner pipe is provided with a screen for injecting high-pressure gas; an air inlet is formed in a pipe opening of the inner pipe and connected with an air compressor on the ground. Top gaps and bottom gaps of the outer pipe and the inner pipe are sealed, and a water injection opening is formed in the top of the outer pipe, connected with a high-pressure water pump on the ground and provided with a pressure gauge. The high-pressure solution and the high-pressure air are respectively conveyed to different positions by using the cased well, so that the problem that the high-pressure gas and the high-pressure solution are simultaneously injected to different parts is so