地下水人工回灌过程中介质堵塞与水质变化研究进展

Advances on porous medium clogging and water quality change during artificial recharge of groundwater

地下水人工回灌借助于一定的工程措施补充地下水量和提高地下水位,可以实现地表水与地下水的联合利用以及受损地质环境的控制与修复等多重目标。地下水人工回灌在理论研究和工程实践过程中,其核心科学问题可归结为堵塞和水质变化两方面。综述了物理堵塞、化学堵塞和生物堵塞3种典型类型堵塞的形成原因和影响因素;介绍了由于有害组分迁移转化和水文地球化学作用所导致的水质变化研究进展。提出了多类型堵塞交互作用、堵塞过程与渗流特征交互作用、堵塞对水质影响以及堵塞与水质变化交互作用等未来值得注意的研究方向。

Artificial recharge of groundwater,with the aid of certain engineering measures to augment groundwater resources and raise groundwater level,can realize the multiple targets including combined use of groundwater and surface water,control and remediation of damged geological environment. In the field of research and engineering practice,clogging and water quality change are the two main issues. For clogging issue,the formation reasons and its contributing factors of three typical clogging of physical,chemical and biological clogging were reviewed. Water quality change which caused by transport of hazard components in recharge water and the hydro-geochemical functions during water seepage pathway were introduced. Potential research directions including multiple type clogging interaction,seepage process of clogging,clogging impact on water quality,interaction of clogging and water quality change were proposed.