The feasibility of mudstone material as a natural landfill liner

Chyi Sheu, Tzong Tzeng Lin, Juu En Chang, Chih Hung Cheng

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

This paper presents the results of a series of laboratory tests investigating on physical properties and hydraulic conductive behaviors of a mudstone material obtained from southwestern Taiwan. The Atterberg limits and particle-size distribution examinations showed the liquid limit = 34.1%, the plasticity index = 15.2%, the percentage fines (< No. 200 sieve) ≤ 95.1%, the percentage of clay (< 2 μm) ≤ 30%, and the activity = 0.5. These characteristics perfectly satisfied the essential requirements for soil properties of landfill liner. Based on the column experiments using two different grain sizes of beads to simulate the mudstone liner constructed on the gravel and the sandy soil, the hydraulic conductivity ≤ 1 X 10-7 cm/s could be achieved if the hydraulic gradient is less than 13.9 (gravel) and 17.8 (sand), respectively. However, the hydraulic conductivity rose with an increase in hydraulic gradient. It was attributed to the fine granular mudstone penetrated through the simulated beads and led to the fine granular mudstone that could not fill up the void of beads. Moreover, the results of permeability tests performed using the rigid-wall and flexible-wall permeameters revealed that all of the hydraulic conductivities were less than 1 X 10-7 cm/s for the mudstone with water contents from 17% to 37% (rigid-wall) and 14% to 29% (flexible-wall). Thus, it was confidently expected that this mudstone material could be applied on landfill soil liner.

原文English
頁(從 - 到)237-247
頁數11
期刊Journal of Hazardous Materials
58
發行號1-3
DOIs
出版狀態Published - 1998 2月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 廢物管理和處置
  • 污染
  • 健康、毒理學和誘變

指紋

深入研究「The feasibility of mudstone material as a natural landfill liner」主題。共同形成了獨特的指紋。

引用此