Gas permeability of hybrid geosynthetics for landfill cap cover

被引:0
|
作者
Nishimura, M. [1 ]
Akai, T. [1 ]
Kamon, M. [2 ]
机构
[1] Technol Res Inst Osaka Prefecture, Osaka, Japan
[2] Kyoto Univ, Grad Sch Global Environm Studies, Kyoto, Japan
关键词
landfill cap cover; hybrid geosynthetics; gas permeability; unsteady-state system; field test;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Landfill cap covers that suppress water infiltration to the waste and promote rapidly gas permeation at the same time are demanded. We have developed hybrid geosynthetics that consist of porous sheet and nonwoven geotextiles as landfill cap covers and their basic performances have been investigated by laboratory and field tests. In this study, gas permeability of porous sheets was evaluated by laboratory test. Field test was also conducted to examine gas permeability of the hybrid geosynthetics installed in the underground. In both tests, variation of substitution rate of nitrogen gas with time at both spaces divided by the sample was investigated, while nitrogen gas was introduced to one side of the spaces. As the results, it was clarified that porous sheets themselves are suggested to have sufficient fundamental characteristics on permeability of gases with chemically-inactive and sufficiently small in molecular size. It was also demonstrated that hybrid geosynthetics exhibits gas permeability even when installed in the underground.
引用
收藏
页码:552 / +
页数:2
相关论文
共 50 条
  • [1] About the quality assurance of geosynthetics of the landfill cover Sandhausen
    Sasse, T
    Saathoff, F
    [J]. GEOSYNTHETICS: APPLICATIONS, DESIGN AND CONSTRUCTION, 1996, : 731 - 736
  • [2] Gas permeability characteristics of biochar-amended landfill cover soil
    Li, Mingyu
    Sun, Wenjing
    [J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2022, 41 : 3543 - 3550
  • [3] Gas permeability and emission in unsaturated vegetated landfill cover with biochar addition
    Ni, Junjun
    Zhou, Jingsong
    Wang, Yuchen
    Guo, Haowen
    [J]. BIOCHAR, 2023, 5 (01)
  • [4] Gas permeability and emission in unsaturated vegetated landfill cover with biochar addition
    Junjun Ni
    Jingsong Zhou
    Yuchen Wang
    Haowen Guo
    [J]. Biochar, 5
  • [5] Effect of temperature on gas breakthrough and permeability of compacted loess in landfill cover
    Wen, Shaojie
    Cheng, Wen-Chieh
    Hu, Wenle
    Li, Dongfeng
    Shao, Longtan
    [J]. GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT, 2023, 36
  • [6] Evaluating gas breakthrough pressure and gas permeability in a landfill cover layer for mitigation of hazardous gas emissions
    Wen, Shaojie
    Cheng, Wen-Chieh
    Li, Dongfeng
    Hu, Wenle
    [J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 336
  • [7] Properties of geosynthetics exhumed from a final cover at a solid waste landfill
    Benson, Craig H.
    Kucukkirca, I. Emre
    Scalia, Joseph
    [J]. GEOTEXTILES AND GEOMEMBRANES, 2010, 28 (06) : 536 - 546
  • [8] Measurement of gas permeability of cover loess and one-dimensional analysis of landfill gas emission
    Yang Yi-biao
    Zhan Liang-tong
    Wang Shun-yu
    Chen Yun-min
    Zhao Yun-fei
    [J]. ROCK AND SOIL MECHANICS, 2015, 36 (07) : 1973 - 1980
  • [9] Gas permeability of biochar-amended clay: potential alternative landfill final cover material
    James Tsz Fung Wong
    Zhongkui Chen
    Charles Wang Wai Ng
    Ming Hung Wong
    [J]. Environmental Science and Pollution Research, 2016, 23 : 7126 - 7131
  • [10] Gas permeability of biochar-amended clay: potential alternative landfill final cover material
    Wong, James Tsz Fung
    Chen, Zhongkui
    Ng, Charles Wang Wai
    Wong, Ming Hung
    [J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2016, 23 (08) : 7126 - 7131