城市屋顶雨水回灌裂隙岩溶含水层的国内外案例介绍——兼对济南市屋顶雨水回灌裂隙岩溶含水层问题的思考  

Cases of fracture karst aquifer recharge with urban roofwater at home and abroad——Reflection on the relevant issues in Jinan City

作　　者：王维平[1] 徐玉[1] 何茂强[1] 曹彬[1] 

机构地区：[1]济南大学资源与环境学院,山东济南250002

出　　处：《中国岩溶》2010年第3期325-330,共6页Carsologica Sinica

基　　金：国家自然科学基金项目(40972169)"城市屋面雨水处理后回灌裂隙岩溶含水层实验研究";山东省自然科学基金项目(Y2008E18)"城市屋顶雨水渗井回灌岩溶水试验研究"

摘　　要：通过监测和分析济南市市区降水、屋面雨水水质和径流过程,屋顶雨水属微污染类水,经前期雨水弃流和预处理达到一定质量标准后,通过管井回灌到裂隙岩溶含水层,可用于饮用水供水和保护地下水环境。已做的示踪试验表明,北方岩溶含水介质多属多重裂隙岩溶通道,因此在人工开采条件下,回灌应关注快、慢速流带来的不同水质变化问题,包括屋面雨水与裂隙岩溶介质的水岩作用。澳大利亚的案例说明,裂隙岩溶含水层对不同污染物有着不同的衰变效果。100多年来Mount Gambier市城区雨洪水经非承压石灰岩含水层径流一直排放到作为城市供水的蓝湖,到目前它对蓝湖水质没有表现出任何可量度的损害。但对于济南市的屋顶雨水回灌裂隙岩溶含水层,仍有许多问题需要研究。Through monitoring and analyzing the water quality and quantity of the precipitation and rainwater fallen on the roof in Jinan City,it is found that the rainwater fallen on the roof being slight contaminated water;and that after removal the initial rainwater and pre-treatment the water on the roof can reach certain standard to recharge fracture aquifer,which can be used for drinking water and protection of groundwater environments.The former trace tests prove that most karst aquifer medium in north China is multiple fracture-channels,thus, the variation of water quality brought by fast and slow flow in recharge process,including the rock-water reaction between the karst fracture medium and the rainwater on the roof,should be paid attention in tificial recharge under the condition of artificial recharge.The case study in Australia illustrates that the karst fracture aquifer has different decay effects to different contaminants.Over 100 years,Mount Gambier reuses urban storm-water by discharging the water into an unconfined limestone aquifer that recharges the Blue Lake-the city＇s domestic water supply.But there is no any measurable detriment to the water quality in the Blue Lake to date.Of course,there are still many problems need to be studied in recharging karst fracture aquifer with rainwater fallen on the roof in Jinan.

关 键 词：屋顶雨水 裂隙岩溶水 含水层补给 山东济南 

分 类 号：P641.25[天文地球—地质矿产勘探]