Validation of Two-Phase Flow Model for Leachate Recirculation in Bioreactor Landfills | Zendy

Krishna R. Reddy | Zendy; Rajiv Giri | Zendy; Hanumanth S. Kulkarni | Zendy

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Validation of Two-Phase Flow Model for Leachate Recirculation in Bioreactor Landfills

Author(s) -

Krishna R. Reddy,

Rajiv Giri,

Hanumanth S. Kulkarni

Publication year - 2014

Publication title -

journal of waste management

Language(s) - English

Resource type - Journals

eISSN - 2356-7724

pISSN - 2314-6052

DOI - 10.1155/2014/308603

Subject(s) - leachate , bioreactor landfill , moisture , flow (mathematics) , bioreactor , environmental science , water content , data flow model , two phase flow , phase (matter) , municipal solid waste , mechanics , process engineering , waste management , geotechnical engineering , materials science , engineering , chemistry , physics , organic chemistry , composite material

A numerical two-phase flow model is presented to determine the moisture distribution and pore water and gas pressures within unsaturated municipal solid waste (MSW) in bioreactor landfills during leachate recirculation. The numerical model used is the Fast Lagrangian Analysis of Continua (FLAC), which is based on finite difference approach. The model governing equations and mathematical formulations is briefly explained. Validation of the model is examined by simulating the published laboratory and field studies and published modeling studies. Overall, the two-phase flow model is found to produce results comparable with those of the published studies. This assures that the model can be used for the prediction of moisture distribution and for the rational design of leachate recirculation systems in bioreactor landfills

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