建筑垃圾中镉和砷在路基中迁移对地下水的影响  

The Effect of Migration of Cadmium and Arsenic from Construction Waste in Roadbed on Groundwater

作　　者：陈宇云[1] 田寅 王周峰[1] 杨胜科[1] 赵晓红[1] 王文科[1] Chen Yuyun1,et al(1 School of Environmental Science and Engineering, Changan University, Xian 710054, China)

机构地区：[1]长安大学环境科学与工程学院 [2]陕西省交通建设集团公司,陕西西安710075

出　　处：《安徽农学通报》2018年第13期74-76,共3页Anhui Agricultural Science Bulletin

基　　金：交通运输部2013年度建设科技项目(2013318J16490)

摘　　要：针对西咸北环高速公路路基填筑时利用了大量建筑垃圾,其中含有大量镉(Cd)和砷(As)等微量污染物的现状,利用Hydrus软件对建筑垃圾中Cd和As在路基中的迁移进行了模拟。模拟结果显示,20年内Cd和As的最大穿透深度不超过3cm和3.5cm,远高于该地区地下水位的埋深,不会对地下水造成污染。A large amount of construction waste is used in the construction of the subgrade of Xi’an-Xianyang northloop expressway,which contains trace pollutants such as cadmium（Cd）and arsenic（As）.Using the Hydrus soft-ware,the migration of Cd and in the roadbed was simulated.The simulation results shown that the maximum penetra-tion depth of Cd and As in 20 years is not more than 3 cm and 3.5 cm,which is far higher than the underground waterlevel in the area,and does not cause pollution to the groundwater.

关 键 词：建筑垃圾 镉 砷 路基 迁移 地下水 

分 类 号：X52[环境科学与工程—环境工程]