Proposal of applicable conditions for methanotrophs activity in a final cover material of waste disposal site

• UCHIDA Yoshiko

  Department of Science and Engineering, Graduate School, Ibaraki University

• KOMINE Hideo

  Department of Urban and Civil Engineering, Ibaraki University

• YASUHARA Kazuya

  Department of Urban and Civil Engineering, Ibaraki University

• MURAKAMI Satoshi

  Department of Urban and Civil Engineering, Ibaraki University

• ENDO Kazuto

  Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies

Bibliographic Information

Other Title

• 廃棄物最終処分場覆土材におけるメタン酸化細菌の育成可能な条件の提示

Abstract

Waste disposal site discharges carbon dioxide gas and methane gas due to decompose waste by microorganism. Methane gas is a kind of green house gas. The countermeasure which is oxidative decomposition of methane by methanotrophs is proposed to reduce methane gas. The oxidative decomposition by methanotrophs needs oxygen gas, methane gas and water. Therefore, a final cover material has to have suitable air permeability and hydraulic conductivity. In this study, the authors carried out the water retentivity test of soil and the measurement of natural water content under the nearly constant relative humidity to candidate material which is Kanto loam, two kinds of coal ash, water-granulated slag and pit sand. The authors discussed the experimental results and proposed the design method of a final cover material from matric potential and evaluated from volumetric gas content.

Journal

• Japanese Geotechnical Journal

  Japanese Geotechnical Journal 3 (1), 85-93, 2008

  The Japanese Geotechnical Society

Keywords

• unsaturated soil
• water retentivity test of soil
• a final cover material
• methanotrophs
• gas phase rate

Details

• CRID: 1390282680232871168
• NII Article ID: 130004482764
• DOI: 10.3208/jgs.3.85
• ISSN: 18806341
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed