Underground water remediation system and remediation method

Abstract

The embodiment of the invention discloses an underground water remediation system and remediation method, which are used for ensuring the continuity of an underground water remediation effect. A circulating well comprises an inner well screen pipe, an outer well screen pipe and a well lid. The inner well screen pipe is sleeved with a middle screen pipe in a matched mode; the middle screen pipe canrotate relative to the inner well screen pipe; the middle screen pipe comprises a first screen pipe section and a second screen pipe section; an aeration pipe of an aeration system extends into the inner well screen pipe and is connected with an aeration head; when the middle screen pipe rotates to a first position, screen holes in the first screen pipe section are aligned with screen holes in the corresponding inner well screen pipe, the screen holes in the second sieve pipe section are staggered with the screen holes in the corresponding inner well sieve pipe; and when the middle screen pipe rotates to a second position, the screen holes in the second screen pipe section are aligned with the screen holes in the corresponding inner well screen pipe, and an aeration head is arranged between the second screen pipe section and the bottom of the circulating well.

Description

technical field [0001] The invention belongs to the technical field of groundwater pollution restoration, and in particular relates to a groundwater restoration system and restoration method. Background technique [0002] The main sources of organic pollution in groundwater include the use of pesticides and fertilizers, oil seepage, and random placement and discharge of organic waste by factories and enterprises. Among them, the main component that causes soil oil pollution is C 15 -C 36 Alkanes, alkenes, benzene series, polycyclic aromatic hydrocarbons and phenols, among which there are as many as 30 kinds of pollutants with limited environmental control. Pollutants in the surface soil in the polluted site mainly penetrate the vadose zone and enter the phreatic aquifer through vertical migration. Therefore, the pollution of phreatic water is inseparable from the pollution of surface soil and phreatic aquifer rock and soil. After pollutants enter the surface soil, under t...

AI Technical Summary

Problems solved by technology

However, once the circulating well repair system stops operating, the bound non-aqueous liquid will continue to be discharged into the water body as a persistent pollution source, which will pollute the water body again

[0005] To sum up, the existing groundwater remediation technology has the problem of poor remediation effect sustainability

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