Multi-Filter Groundwater Circulation Wells for Targeted Aquifer Remediation
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Solution Overview
Problem
Existing two-section groundwater circulation wells are limited in circulation modes and interaction modes, leading to inefficient remediation of groundwater pollution, particularly in aquifers with diverse structures and pollution distributions, resulting in long remediation times and energy waste.
Innovation Solution
A three-section multi-filter-layer groundwater circulation well system with adjustable pumping/injection sections and a control module to form multiple water circulation modes, allowing targeted remediation of different aquifer layers and enhancing remediation efficiency by forming various circulation combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional two-section groundwater circulation wells are used, then the structure is simple and easy to operate, but the circulation modes are limited and remediation efficiency is low
Solution Approach 1:
The wellbody is divided into multiple filtering sections (first, second, third filtering sections) separated by packers, allowing independent pumping and injection operations in each section. This segmentation enables multiple circulation modes (first circulation mode, second circulation mode, third circulation mode) to be formed, significantly improving remediation efficiency compared to traditional two-section wells while maintaining operational simplicity through standardized modular components.
2Device complexity
If traditional two-section groundwater circulation wells are used, then the device complexity is low, but the adaptability to different aquifer structures and pollution distributions is poor
Solution Approach 1:
The system enables dynamic switching between multiple circulation modes (first, second, third circulation modes) by controlling pumping and injection operations in different filtering sections. This dynamic adaptability allows the well to respond to diverse aquifer structures (multi-layer heterogeneous media) and pollution distributions (different contaminated zones), significantly improving versatility while maintaining reasonable device complexity through standardized modular components.
3Use of energy by moving object
If traditional two-section groundwater circulation wells are used, then the energy consumption is lower, but the remediation time is excessively long for highly contaminated areas
Solution Approach 1:
The system implements periodic switching between different circulation modes (first, second, third circulation modes) based on remediation needs. This allows intensive remediation of highly contaminated areas through targeted circulation patterns, reducing remediation time significantly. The periodic activation of multiple pumping/injection assemblies enables accelerated pollutant removal while managing energy consumption through controlled operation cycles.
4Area of stationary object
If multiple two-section groundwater circulation wells are arranged in water flow direction, then the circulation coverage is expanded, but the circulation modes remain similar and highly contaminated areas cannot be remediated efficiently
Solution Approach 1:
Each multi-filter-layer groundwater circulation well is segmented into multiple filtering sections (first, second, third filtering sections) with independent pumping/injection assemblies. This segmentation enables each well to form multiple distinct circulation modes (first, second, third circulation modes), allowing targeted remediation of highly contaminated areas. When multiple wells are arranged, their combined circulation modes create comprehensive coverage with enhanced remediation efficiency, eliminating the limitation of similar circulation patterns in traditional two-section wells.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves targeted remediation of groundwater pollution by eliminating blind zones and optimizing energy use, improving remediation efficiency and reducing remediation time through adaptive water circulation modes.
Implementation Method 1
Each pumping/injection section is internally provided with at least one pumping/injection assembly for water pumping/injection
Implementation Method 2
A wellbore of each multi-filter-layer groundwater circulation well is separated by at least two first packers to form three pumping/injection sections
Data Source
AI summary
The present disclosure relates to a groundwater circulation well group and a circulation mode control method therefor. The groundwater circulation well group includes at least two multi-filter-layer groundwater circulation wells, multiple pumping/injection assemblies, and a control module. The at least two multi-filter-layer groundwater circulation wells are arranged in order along a groundwater flow direction. A wellbore of each multi-filter-layer groundwater circulation well is separated by at least two first packers to form three pumping/injection sections, and each pumping/injection section is internally provided with at least one pumping/injection assembly for water pumping/injection. The water pumping and/or water injection of the pumping/injection assembly is controlled by the control module. A pipe wall of each pumping/injection section is provided with a perforated water pumping/injection screen section.