天津浅层孔隙含水介质中铁的吸附迁移性能  

Adsorption mode and transportation ability of Fe in Tianjin shallow porous aquifer medium

作　　者：武强[1] 连会青[1] 李铎[2] 

机构地区：[1]中国矿业大学资源与安全工程学院,北京100083 [2]石家庄经济管理学院资源与环境工程系,石家庄050031

出　　处：《北京科技大学学报》2006年第4期307-311,共5页Journal of University of Science and Technology Beijing

基　　金：教育部跨世纪优秀人才基金资助项目(No.2000-3);教育部青年骨干教师基金资助项目(No.2000-65)

摘　　要：为了解天津浅层孔隙含水介质对铁的吸附特征和铁在地下水中的迁移运动规律,利用宝坻和大港地区两个钻孔岩芯配制7个土样,以FeSO4溶液模拟污染源,进行了室内静态吸附实验与动态淋滤实验.实验结果表明:该地区浅部不同岩性地层对铁的吸附模式符合Langmuir等温吸附模式;铁在淡水区含水层中迁移4m需要3500d,在咸水区含水层中迁移4m需要4400d,个别地点铁的超标不会造成地下水大面积污染.In order to acknowledge the adsorption property of Tianjin shallow porous aquifer medium to Fe and the transportation law of Fe in salt and fresh water aquifer, seven soil samples were made using 2 bores＇ core in Baodi county and Dagang district. Static adsorption experiments and dynamic filtering pole experiments were conducted with FeSO4 liquor simulating contamination. The results showed that the ad- sorption mode of soil samples to Fe was the Langmuir isothermal adsorption equation, and it was taken 3 500 days to transport 4 m for Fe in fresh aquifer then 4 400 days in salt aquifer. Therefore, the extra heavy concentration of Fe at individual sites would not induce large area of groundwater pollution.

关 键 词：含水介质 铁 吸附模式 迁移性能 

分 类 号：X141[环境科学与工程—环境科学] P64[天文地球—地质矿产勘探]