Adjustable remediation well system for soil and underground water remediation

Abstract

The invention discloses an adjustable remediation well system for soil and underground water remediation. The adjustable remediation well system comprises a well lid, a well body, an adjustable telescopic pipe and a high-pressure chemical injection pipe. The well body comprises a prefabricated screen pipe serving as the inner wall, a hole sealing section serving as the outer wall and a filtering section. The adjustable telescopic pipe is vertically arranged in the center in the well body, is hydraulically driven and comprises at least two telescopic pipe fittings. A packer is arranged on the outer wall, close to the lower end, of each telescopic pipe fitting; all the packers are connected with external hydraulic control equipment through control hoses and are driven by the external hydraulic control equipment to expand; medicine outlets are formed in the positions, corresponding to the lower portions of the packers, of the lower portion of the high-pressure medicine injection pipe; a submersible pump is arranged at the bottom of the well body; the submersible pump is connected with a ground extraction pump through an extraction pipeline. By means of the application, the injection depth and the injection section of the repairing agent can be adjusted, so that the pertinence and accuracy of repairing agent injection are improved, and the accurate repairing target is achieved.

Description

technical field [0001] The invention relates to the technical field of restoration of soil and groundwater pollution, in particular to an adjustable restoration well system for soil and groundwater restoration. Background technique [0002] In recent years, major environmental pollution incidents caused by soil and groundwater pollution have occurred frequently. With the advancement of urbanization, the acceleration of industrial structure adjustment and the improvement of ecological civilization construction requirements, soil and groundwater pollution control has become the current urban double repair and ecological environment. An important part of civilization construction. The main sources of soil and groundwater pollution are leaks, leaks, accidents, and illegal sewage discharges during the long-term production process of chemical industries, smelting, textile printing and dyeing, and electroplating. According to the types of pollutants, soil and groundwater pollution...

AI Technical Summary

Problems solved by technology

The shallow strata in southern my country are generally dominated by cohesive soil-sand-silt interbedded soil. There are often thin horizontal interlayers in the stratum structure, and the aquifer has obvious heterogeneity characteristics. The groundwater aquifer has pore cavities, dominant channels, and water level amplitude bands. Capillary action, etc., resulting in relatively poor local penetration conditions, long diffusion time of the agent, often resulting in repair blind spots

The traditional fixed injection well is composed of a fixed opening screen section, and there are some bottlenecks in the actual application process, such as the depth cannot be adjusted, the local residue cannot be repaired in a targeted manner, the opening section is too long and requires high injection pressure, and the repair agent is wasted Wait

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