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刘宇童, 陈爽, 鲁长青, 王龙, 刘会娥, 谷莹露. 微乳液淋洗航空煤油污染海砂实验[J]. 环境化学, 2019, (12): 2836-2842. doi: 10.7524/j.issn.0254-6108.2019010409
引用本文: 刘宇童, 陈爽, 鲁长青, 王龙, 刘会娥, 谷莹露.

微乳液淋洗航空煤油污染海砂实验

[J]. 环境化学, 2019, (12): 2836-2842. doi: 10.7524/j.issn.0254-6108.2019010409
shu
LIU Yutong, CHEN Shuang, LLU Changqing, WANG Long, LIU Hui, GU Yinglu. Experimental study on microemulsion leaching of jet fuel contaminated soil[J]. Environmental Chemistry, 2019, (12): 2836-2842. doi: 10.7524/j.issn.0254-6108.2019010409
Citation: LIU Yutong, CHEN Shuang, LLU Changqing, WANG Long, LIU Hui, GU Yinglu.

Experimental study on microemulsion leaching of jet fuel contaminated soil

[J]. Environmental Chemistry, 2019, (12): 2836-2842. doi: 10.7524/j.issn.0254-6108.2019010409
shu

微乳液淋洗航空煤油污染海砂实验

  • 1. 重质油国家重点实验室, 中国石油大学(华东)化学工程学院, 青岛, 266580;

  • 2. 青海油田液化天然气公司, 格尔木, 816000

    • 通讯作者: 陈爽, E-mail: chsh1030@163.com ; 
  • 基金项目:

    山东省自然科学基金（ZR2017MB015），重质油国家重点实验室资助项目（SLKZZ-2017002）和中国石油科技创新基金（2017D-5007-0601）资助.

Experimental study on microemulsion leaching of jet fuel contaminated soil

  • 1. State Key Laboratory of Heavy Oil, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China;

  • 2. Qinghai petroleum Liquefied Natural Gas Ltd:Ge'ermu, 816000, China

    • Corresponding author: CHEN Shuang, chsh1030@163.com ; 
  • Fund Project: Supported by Natural science foundation of Shandong province(ZR2017MB015),State Key Laboratory of Heavy Oil Research(SLKZZ-2017002)and China Petroleum Science & Technology Innovation Fund(2017D-5007-0601).

  • 摘要:

    微乳液具有超强的乳化、润湿和增溶能力，以及超低的界面张力，分散粒径在5-100 nm之间，能够很好渗透进毛细孔内，对污染海砂有着很好的清洗效果.本研究选取十二烷基苯磺酸钠（SDBS）、十二烷基硫酸钠（SDS）两种阴离子表面活性剂，配制成微乳前驱液，对航空煤油污染海砂进行了淋洗实验.考察了洗液流速、砂子含水率、表面活性剂种类、含量以及盐用量等对除油率的影响.通过实验发现，在单一阴离子表面活性剂（SDBS、SDS）洗液以及阴/阴离子表面活性剂（SDBS/SDS）复配洗液中，单一阴离子表面活性剂SDBS洗液除油率可达到90%以上.当SDBS的质量分数4% wt时，除油率可达93.8%.当SDBS/SDS=0.8时，除油效果可以达到69.2%，且形成WinsorⅠ型微乳液.

    Abstract:

    Microemulsion has excellent emulsifying, wetting and solubilizing ability, and ultra-low interfacial tension. The particle size of microemulsion is between 5 and 100 nm, so it can easily permeate into the capillary pores. Therefore, it has an excellent cleaning effect on contaminated soil. In this paper, two anionic surfactants, sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), were used to prepare the microemulsion precursor in the rinsing experiments of jet fuel contaminated sea sand. In the experiments, the effects of liquid flow efficiency, sand moisture content, the type and content of surfactant, and NaCl content on oil removal efficiency were investigated. In the single anionic surfactant (SDBS, SDS) lotion and anionic/anionic surfactant (SDBS/SDS) mixture lotion, it was found that the degreasing efficiency of a single anionic surfactant SDBS lotion reached more than 90%. When the mass fraction of SDBS was 4%wt, the oil removal efficiency reached 93.8%. When the ratio of SDBS/SDS was 0.8, the removal efficiency reached 69.2% and a Winsor I microemulsion was formed.

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出版历程
  • 收稿日期:  2019-01-04
  • 刊出日期:  2019-12-10

微乳液淋洗航空煤油污染海砂实验

    通讯作者: 陈爽, E-mail: chsh1030@163.com ; 
  • 1. 重质油国家重点实验室, 中国石油大学(华东)化学工程学院, 青岛, 266580;
  • 2. 青海油田液化天然气公司, 格尔木, 816000
  • 收稿日期:  2019-01-04
  • 网络出版日期:  2019-12-10
基金项目:

山东省自然科学基金（ZR2017MB015），重质油国家重点实验室资助项目（SLKZZ-2017002）和中国石油科技创新基金（2017D-5007-0601）资助.

摘要: 

微乳液具有超强的乳化、润湿和增溶能力，以及超低的界面张力，分散粒径在5-100 nm之间，能够很好渗透进毛细孔内，对污染海砂有着很好的清洗效果.本研究选取十二烷基苯磺酸钠（SDBS）、十二烷基硫酸钠（SDS）两种阴离子表面活性剂，配制成微乳前驱液，对航空煤油污染海砂进行了淋洗实验.考察了洗液流速、砂子含水率、表面活性剂种类、含量以及盐用量等对除油率的影响.通过实验发现，在单一阴离子表面活性剂（SDBS、SDS）洗液以及阴/阴离子表面活性剂（SDBS/SDS）复配洗液中，单一阴离子表面活性剂SDBS洗液除油率可达到90%以上.当SDBS的质量分数4% wt时，除油率可达93.8%.当SDBS/SDS=0.8时，除油效果可以达到69.2%，且形成WinsorⅠ型微乳液.

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