Embedded removable reactor for single well

Abstract

The invention discloses an embedded removable reactor for a single well. The embedded removable reactor comprises a water inlet pipe, a water outlet pipe, a rubber plate, a water inlet PRB coating layer and a water outlet PRB coating layer, wherein the water inlet pipe is provided with a plurality of water inlet filtering holes and is externally coated with the water inlet PRB coating layer; a lower flange sleeves the bottom of the water inlet pipe; the rubber plate sleeves the outer part of the upper end of the water inlet pipe; the interior of the rubber plate is closed; a plurality of middle water filtering holes are formed in the rubber plate; the water outlet pipe is arranged above the water inlet pipe; the water outlet pipe is externally coated with the water outlet PRB coating layerand is provided with a plurality of water outlet filtering holes; an upper flange sleeves the upper end of the water outlet pipe. When the embedded removable reactor for the single well, disclosed bythe invention, is used, underground water does not need to be pumped for treatment, so that in-situ treatment of pollutants can be realized; the reactor can be used in a newly-built well or an existing water intake well, so that the workload is greatly reduced, and the use amount of PRB materials is reduced; in addition, the problem that the PRB material cannot be changed is solved.

Description

technical field [0001] The invention relates to the technical field of groundwater pollution prevention and control, in particular to a single-well embedded movable reactor, which is applied to treat polluted groundwater. Background technique [0002] The traditional PRB well repair technology is to place the PRB cladding layer between the wellbore pipe and the formation. Limited by the wellbore construction technology, the diameter of a single well is generally between 700mm-425mm, so the PRB cladding layer The maximum thickness is 350mm. The polluted water body in the aquifer passes through the PRB coating layer. The maximum water passing path of the water body is 350mm. When the water supply of the pumping well is large, the water body stays in the PRB coating layer for a short time. The effect cannot meet the expected requirements. Therefore, in order to ensure the removal effect, the water supply of this type of pumping well is generally small. Contents of the inventi...

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Problems solved by technology

[0002] The traditional PRB well repair technology is to place the PRB cladding layer between the wellbore pipe and the formation. Limited by the wellbore construction technology, the diameter of a single well is generally between 700mm-425mm, so the PRB cladding layer The maximum thickness is 350mm. The polluted water body in the aquifer passes through the PRB coating layer. The maximum water passing path of the water body is 350mm. When the water supply of the pumping well is large, the water body stays in the PRB coating layer for a short time. The effect cannot meet the expected requirements, so in order to ensure the removal effect, the water supply of this type of pumping well is generally small

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