天津淺層孔隙含水介質中鐵的吸附遷移性能

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基金項目:

教育部跨世紀優秀人才基金資助項目(No.2000-3)和教育部青年骨干教師基金資助項目（No．2000－65）

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

1. Faculty of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, China;
2. Faculty of Resources and Environment Engineering, Shijiazhuang College of Economics and Management, Shijiazhuang 050031, China

摘要: 為了解天津淺層孔隙含水介質對鐵的吸附特征和鐵在地下水中的遷移運動規律,利用寶坻和大港地區兩個鉆孔巖芯配制7個土樣,以FeSO₄溶液模擬污染源,進行了室內靜態吸附實驗與動態淋濾實驗.實驗結果表明:該地區淺部不同巖性地層對鐵的吸附模式符合Langmuir等溫吸附模式;鐵在淡水區含水層中遷移4m需要3500d,在咸水區含水層中遷移4m需要4400d,個別地點鐵的超標不會造成地下水大面積污染.
- 含水介質 /
- 鐵 /
- 吸附模式 /
- 遷移性能
Abstract: 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 adsorption 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.
- aquifer medium /
- Fe /
- adsorption mode /
- transportation ability