Modeling Coupled Hydromechanical Behavior of Landfilled Waste in Bioreactor Landfills: Numerical Formulation and Validation

@article{Reddy2017ModelingCH,
  title={Modeling Coupled Hydromechanical Behavior of Landfilled Waste in Bioreactor Landfills: Numerical Formulation and Validation},
  author={Krishna R. Reddy and Rajiv K. Giri and Hanumanth S. Kulkarni},
  journal={Journal of Hazardous, Toxic, and Radioactive Waste},
  year={2017},
  volume={21}
}
  • K. ReddyRajiv K. GiriH. S. Kulkarni
  • Published 2017
  • Engineering
  • Journal of Hazardous, Toxic, and Radioactive Waste
AbstractBioreactor landfills involving leachate recirculation are emerging as the preferred option for managing municipal solid waste (MSW). Effective bioreactor landfill performance can be achieved by ensuring uniform and adequate moisture (leachate) distribution in landfilled MSW. This paper presents a numerical two-phase flow model as a tool to predict hydraulic behavior (moisture distribution and pore fluid pressures) in unsaturated MSW under leachate recirculation, mechanical response… 
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13 Citations
Background Citations
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13 Citations

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    Global NEST: the international Journal
  • 2019
A newly developed numerical framework incorporating coupled thermo-hydro-bio-mechanical processes is presented that can predict the spatial and temporal variation of waste temperatures, moisture distribution, gas generation, pore pressures, waste settlement, waste slope stability, and interface shear response in the landfill liner system.

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33 References

Effects of gas and moisture on modeling of bioreactor landfill settlement.

Landfill Settlement with Decomposition and Gas Generation

A one-dimensional multiphase numerical model is developed to simulate the vertical settlement involving liquid and gas flows in a deformable (settling) municipal solid waste (MSW) landfill. MSW is…

Slope stability of bioreactor landfills during leachate injection: Effects of heterogeneous and anisotropic municipal solid waste conditions

  • Rajiv K GiriK. Reddy
  • Engineering, Geology
    Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
  • 2014
It was concluded that heterogeneous and anisotropic MSW with varied unit weight and saturated hydraulic conductivity significantly influenced the moisture distribution and generation and distribution of pore fluid pressures in landfill and considerably reduced the stability of bioreactor landfill slope.

Leachate Recirculation Using Horizontal Trenches in Bioreactor Landfills

This paper presents a numerical study of LRS consisting of horizontal trenches, and the finite-element saturated/unsaturated flow model HYDRUS-2D was used for the numerical study.

Modeling Settlement in MSW Landfills: a Critical Review

Landfills remain an attractive disposal route for municipal solid waste because in most cases it is more economical than other alternatives such as incineration and composting. The post-closure…

Slope stability of bioreactor landfills during leachate injection: Effects of unsaturated hydraulic properties of municipal solid waste

  • Rajiv K. GiriK. Reddy
  • Engineering, Geology
  • 2014
Abstract In bioreactor landfill, the leachate flow and moisture distribution depend upon saturated and unsaturated hydraulic properties of municipal solid waste (MSW). The effects of unsaturated…

A hydro-bio-mechanical model for settlement and other behaviour in landfilled waste

Prediction of Long-Term Municipal Solid Waste Landfill Settlement Using Constitutive Model

This paper proposes a generalized constitutive model for municipal solid waste, based on the framework derived from critical state concepts and incorporating the effects of mechanical creep and…

Large-Scale Bioreactor Pilots for Monitoring the Long-Term Hydromechanics of MSW

The results showed that it is important to consider the potential of different monitoring techniques and the representative volume for the experimental approach, and the correlation between the biogas flow and vertical settlement were confirmed for wastes with high initial moisture content.

Hydraulic Conductivity of MSW in Landfills

This paper presents a laboratory investigation of hydraulic conductivity of municipal solid waste (MSW) in landfills and provides a comparative assessment of measured hydraulic conductivity values…