基于野外试验的上海市地下水人工回灌可行性分析

The Feasibility Analysis of Artificial Recharge of Groundwater in Shanghai Based on Field Experiment

地下水人工回灌是提升地下水水位,增加地下水储量的有效方法,因其便于实施而被国内外广泛应用,可行性分析是进行地下水人工回灌的前提。在野外试验的基础上对上海市地下水人工回灌的可行性进行分析,野外试验的监测结果表明,在上海市进行人工回灌后,各监测井中地下水水位得到了明显的提升,同时,回灌水注入地下水后,除与地下水发生混合作用外,还发生了水岩作用、矿物溶解反应等,使地下水环境和水质组分含量发生变化,对地下水水质造成影响,由此可见,优质的回灌水源的选取也是至关重要的,并且在上海地区实行人工回灌是可行的。

The artificial recharge of groundwater is one of the effective methods of ascending water level, in- creasing the groundwater reserves, it is widely used at home and abroad because of its easy implementation. The feasibility analysis is the precondition of artificial recharge of groundwater. The feasibility of artificial recharge of groundwater in Shanghai was andlyzed on the basis of field experiment. The monitoring results of the field experi- ment show that, water level of each monitoring well obtaine an obvious improve after artificial recharge of groundwa- ter, but at the same time, the recharge water reacted with groundwater in addition to mixing, as well as water rock and mineral dissolving, changing the environment and water quality components of groundwater, therefore, the se- lection of high quality of injection water is also very important.