Underground water circulation well structure and repairing system and method

Abstract

The invention relates to the technical field of underground water and soil remediation, and discloses an underground water circulation well structure, and a repairing system and method. The system comprises a circulating well, a pumping well, an aeration pipe, an exhaust pipe, a dosing system and a tail gas treatment device. The circulating well comprises an outer well pipe and an inner well pipe which are sequentially arranged from outside to inside, the pipe walls of the upper end and the lower end of the outer well pipe are each provided with a plurality of screen holes, a separator is arranged between the inner well pipe and the outer well pipe and located between the first screen holes and the second screen holes, the aerator pipe extends into the lower portion of the inner well pipe, and the exhaust pipe is communicated with the top of the circulating well; and the pumping well is located near the circulating well, the well wall of the lower end of a pumping well pipe is provided with screen holes, and a pumping pipe opening in the pumping well pipe is slightly lower than the underground water level. The underground water repairing method is an operation method for carrying out remediation on a remediation site based on the remediation system. Based on the specific structure arrangement of the circulating well, underground water can achieve inside-outside three-dimensional circulation of the circulating well, the influence radius of the circulation can be enlarged in cooperation with the pumping well, and the repairing effect is improved.

Description

technical field [0001] The invention relates to the technical field of groundwater or soil restoration, in particular to a groundwater circulation well structure, restoration system and method. Background technique [0002] The abnormal leakage of organic matter in the process of storage, transportation and use has caused soil and groundwater pollution, and it is imperative to restore and control soil and groundwater pollution. In-situ remediation technology is the development trend and research hotspot of soil and groundwater remediation technology in active plots and plots close to sensitive targets because of its low construction difficulty and small impact on geological structure. Groundwater circulation well is an in-situ remediation technology that can remove volatile pollutants from groundwater and saturated zone soil. This technology is a well-in-well composed of double-layer casing and upper and lower screens. It combines extraction treatment technology and in-situ...

AI Technical Summary

Problems solved by technology

There are related domestic patents that have made public explanations, but most of them are groundwater circulating in the circulation well, and the influence radius is small, the cycle period is long, and the energy consumption is high

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