2020年7月31日 · This paper investigates the performance of groundwater circulation well (GCW) in controlling saltwater intrusion problems in unconfined coastal aquifers. The GCWs have been established as a promising in-situ remedial technique of contaminated groundwater.

2025年1月1日 · GCW technology is suitable for a variety of applications including groundwater remediation and risk management and control (Knox et al., 2010; Qiu et al., 2024). The objectives that can be achieved include the elimination of pollution sources or the prevention of the spread of pollution plumes (Cunningham and Reinhard, 2002; Lowe et al., 2002).

GCW systems are designed to create in-situ vertical groundwater circulation cells by drawing groundwater from an aquifer through one screened section of a multi - screened well and discharging it back into the aquifer through another screened section.

2024年2月1日 · GCWs represent a significant opportunity to replace traditional groundwater extraction systems that deplete groundwater resources. Such a perspective can be achieved by configuring a virtual GCW barrier that intercepts groundwater flow and contamination plume and recirculates decontaminated water to hydrogeological downstream ( Stamm, 1997 ).

2007年8月15日 · Dual-screened groundwater circulation wells (GCWs) can be used to remove contaminant mass and to mix reagents in situ. GCWs are so named because they force water in a circular pattern between injection and extraction screens. The radial extent, flux and direction of the effective flow of this circulation cell are difficult to measure or predict.

2021年9月16日 · GCW修复技术充分利用了井内空间安装处理装置，有效避免了传统抽出处理技术能耗高、扰动大的缺陷，为地下水原位修复开辟了新思路。 综述了GCW修复技术的研究现状和应用进展，梳理和总结了该技术的基本原理及系统组成，提出了GCW修复技术研究与应用所面临的关键问题和主要挑战，并对该技术未来的研究发展方向进行了展望，以期为场地地下水有机污染原位修复技术研究提供参考。 地下水循环井 (Groundwater Circulation Well，GCW)修复技术发源 …

2024年6月10日 · Groundwater circulation well (GCW) is a technology that has been used to blow out and remove volatile organic compounds (VOCs) from the aquifer medium and groundwater by aerating into the inner pipe of a GCW, causing groundwater to form a three-dimensional circulating flow field around the GCW.

Groundwater circulation wells (GCWs) are emerging as an alternative technology for groundwater remediation. GCWs have also been used for the hydraulic characterization of aquifers, which is a necessary step toward remediation.

Groundwater circulation wells (GCWs) are a quasi-in-situ method for remediating groundwater in areas where remediation techniques that limit the water available for municipal, domestic, industrial, or agricultural purposes are inappropriate.

Inducing a circulating flow field using a Groundwater Circulation Well (GCW) as a means of efficiently remediating contaminated groundwater. With the conventional “Pump & Treat” method, groundwater is normally extracted from one or several wells, cleaned above ground and disposed off to the either groundwater or surface water.