地下水循环井修复技术发展现状综述

Advances in groundwater circulation well technology

摘要:

地下水循环井修复技术（GCW）是通过为地下水创造三维环流来进行地下水修复的新型原位修复技术。本文阐述了该技术在国内外的发展现状，介绍了真空气化井系统、气流提升井系统和密度驱动对流井系统的特点、优势和适用条件以及它们在实际工程的应用情况。针对地下水循环井修复技术目前存在的修复范围小、修复时间长、场地要求高、抽注不平衡等问题，提出需要在大范围水力调控、原位生物修复、多相同步修复、一体化智能设备等方面对该技术进行改进的建议。

Abstract:

Groundwater circulating well technology （GCW） is an in-situ remediation technology that repairs groundwater by creating a three-dimensional circulation for groundwater. This paper describes the development of the technology at home and abroad. It introduces the characteristics， advantages and applicable conditions of UVB， NOVOCs? and DDC as well as their field applications. In view of the problems with groundwater circulation well technology such as limited repair range， long repair time， strict site requirements， unbalanced pumping and injection， it is proposed to improve the technology in terms of large-scale hydraulic control， in-situ biological repair， multi-phase synchronized repair， and integrated intelligent equipment， etc.