[1]王岩,张国强,张鹏远,等.氧化石墨烯作用下渗透土层中重金属铅离子的迁移特性试验研究[J].水利与建筑工程学报,2023,(02):115-120.[doi:10.3969/j.issn.1672-1144.2023.02.017]
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氧化石墨烯作用下渗透土层中重金属铅离子的迁移特性试验研究()
《水利与建筑工程学报》[ISSN:1672-1144/CN:61-1404/TV]
- 卷:
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- 期数:
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2023年02期
- 页码:
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115-120
- 栏目:
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- 出版日期:
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2023-04-30
文章信息/Info
- 作者:
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王岩1; 张国强1; 张鹏远1; 孙文超1; 邓尚1; 徐辉1; 陈龙2; 白冰2
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1.北京住总基础设施建设集团有限责任公司,北京101200;2.北京交通大学土木建筑工程学院,北京100044
- 关键词:
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氧化石墨烯; 铅离子; 渗流试验; 净化特性; 迁移过程
- 分类号:
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X53
- DOI:
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10.3969/j.issn.1672-1144.2023.02.017
- 文献标志码:
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A
- 摘要:
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对一种氧化石墨烯工程材料在渗透土层中的迁移过程以及在其作用下渗透土层中重金属铅离子的迁移过程进行了研究。结果表明:对于氧化石墨烯,流速越大,氧化石墨烯的初始浓度越大,流出液中氧化石墨烯的浓度越大,氧化石墨烯的初始浓度越小,土体中残余的氧化石墨烯越少;流出液中氧化石墨烯出现时的孔隙体积为0.625,与氧化石墨烯悬浊液浓度以及流速无关;流出液中氧化石墨烯初次出现仅与注入溶液的体积相关;对于铅离子,初始铅离子的浓度越大,流出液中铅离子的浓度越大,但流速对流出液中铅离子的浓度无影响;氧化石墨烯作为吸附剂时,氧化石墨烯的浓度越大,流速越高,流出液中铅离子的浓度越大(PV>3.25),土体中残余的铅离子越少。因此,氧化石墨烯可以有效的吸附固化溶液中的铅离子,可作为重金属离子净化剂应用。
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备注/Memo
- 备注/Memo:
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收稿日期:2022-12-01 修稿日期:2022-12-27
基金项目:北京市自然科学基金(8222023)
作者简介:王 岩(1981—),男,硕士,高级工程师,主要从事城市轨道与隧道桥梁工程等方面工作。E-mail:4500820@qq.com
通讯作者:白 冰(1966—),男,博士,教授,主要从事岩土工程教学和科研工作。E-mail:bbai@bjtu.edu.cn
更新日期/Last Update:
1900-01-01