Landfill emission of gases into the atmosphere
Author(s)
Bibliographic Information
Landfill emission of gases into the atmosphere
(Advances in air pollution series, v.4)
Computational Mechanics, c1999
Available at 4 libraries
  Aomori
  Iwate
  Miyagi
  Akita
  Yamagata
  Fukushima
  Ibaraki
  Tochigi
  Gunma
  Saitama
  Chiba
  Tokyo
  Kanagawa
  Niigata
  Toyama
  Ishikawa
  Fukui
  Yamanashi
  Nagano
  Gifu
  Shizuoka
  Aichi
  Mie
  Shiga
  Kyoto
  Osaka
  Hyogo
  Nara
  Wakayama
  Tottori
  Shimane
  Okayama
  Hiroshima
  Yamaguchi
  Tokushima
  Kagawa
  Ehime
  Kochi
  Fukuoka
  Saga
  Nagasaki
  Kumamoto
  Oita
  Miyazaki
  Kagoshima
  Okinawa
  Korea
  China
  Thailand
  United Kingdom
  Germany
  Switzerland
  France
  Belgium
  Netherlands
  Sweden
  Norway
  United States of America
Description and Table of Contents
Description
In this volume the authors describe a mathematical model for the solution of convection-diffusion flow of a mixture of gases in a multi-layer porous media, and apply this to the problem of the generation and migration of gases inside a landfill and their release into the atmosphere. They present two different boundary element formulations, based upon the dual reciprocity method (DRM), to transform the resulting domain integrals into surface integrals. Chapter 1 provides a brief introduction to the field plus numerical schemes previously applied to the problem. This is followed with introductory material about sanitary landfills and landfill gases, with an emphasis on the importance of the control of the emission of the gases. The foundations of the convection-diffusion flow of mixture of gases in a porous media, including a review of heat generation and transport theory, are then given and the BEM formulations for single-gas and multi-gas models are explained. Chapter 5 presents the domain decomposition concept and tests it on a variety of one- and two-dimensional problems.The DRM-MD concept is then described in more detail and the validity of the algorithm is verified through a number of numerical examples.
Finally, the model is applied to the design of trenches in a multi-layer landfill.
Table of Contents
- Introduction - General considerations
- gas transport models
- numerical simulations of gas flow out of a landfill
- boundary element method
- cell integration and dual reciprocity (DRM) method
- nomenclature. Sanitary Landfills - Introduction
- landfill description
- landfill gases
- gas production modelling. Fundamental Principles - Conservation of mass of species i
- diffusive velocity and flux
- governing equation
- heat generation and transport. Boundary Element Formulation - Single gas model
- multi gas model. Domain Decomposition on the DRM Approach - Approximating functions in the DRM
- numerical examples. The DRM-MD Integral Equation Method - Introduction
- basic concepts of the DRM-MD approach
- numerical examples. BEM Solution for Design of Trenches in Multi-layered Landfills - Introduction
- numerical examples and discussions.
by "Nielsen BookData"