0#柴油对纳米Fe_(3)O_(4)在多孔介质迁移的影响  

Effect of Diesel Pollution on Migration Behavior of Fe_(3)O_(4) Nanoparticles in Porous Media

作　　者：李一菲[1] 李孟妮 吉莉[1] LI Yi-fei;LI Meng-ni;JI Li(School of Environment and Safety,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学环境与安全学院,太原030024

出　　处：《太原科技大学学报》2022年第1期66-70,76,共6页Journal of Taiyuan University of Science and Technology

基　　金：国家自然科学基金(41807130,51709195);山西省青年科技研究基金(201701D221222);太原科技大学博士启动资金(2014042)。

摘　　要：通过土柱实验研究了柴油污染的存在对纳米材料在土壤中迁移的影响,结果表明:纳米Fe_(3)O_(4)在土壤中具有较好的迁移能力,柴油污染会降低纳米颗粒在土壤介质中的迁移性,在未处理土柱中,流出液中纳米四氧化三铁的浓度可达注入浓度的54.7%,而0#柴油处理土柱,流出液中纳米四氧化三铁的浓度仅达注入浓度的34.6%.计算可得天然土壤和0#柴油处理土柱中纳米四氧化三铁的最远迁移距离分别为137.41 cm和84.60 cm,纳米Fe_(3)O_(4)在天然土壤中的迁移能力明显强于柴油污染土壤。The influence of diesel pollution on the migration of nanomaterials in soil was studied by column experiments.The results show that Fe_(3)O_(4) nanoparticles has good migration ability in the soil,and diesel pollution would reduce the mobility of Fe_(3)O_(4) nanoparticles in the soil.In the untreated soil column,the penetration rate of Fe_(3)O_(4)nanoparticles could reach 54.7%,while in the diesel treated soil column,the penetration rate of Fe_(3)O_(4) nanoparticles could only reach 34.6%.The maximum migration distance of Fe_(3)O_(4) nanoparticles in natural soil column and diesel treated soil column were 137.41 cm and 84.60 cm respectively.The migration ability of Fe_(3)O_(4)nanoparticles in natural soil was significantly stronger than that in diesel contaminated soil.

关 键 词：纳米Fe_(3)O_(4) 柴油污染 土壤 迁移 穿透曲线 

分 类 号：X53[环境科学与工程—环境工程]