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A New Consolidation Model for Unsaturated High-Kitchen-Waste-Content MSW

  • Ke Li
  • Wenjie XuEmail author
  • Yunmin Chen
Conference paper
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Kitchen waste refers to waste which is degradable and with high content of organic matter such as lettuce, flesh, peels, etc. Kitchen waste is more easily degraded than non-kitchen waste and produces a greater amount of leachate and landfill gas. It is vital to study the consolidation of municipal solid waste landfills with high kitchen waste content. A new consolidation model for unsaturated high-kitchen-waste-content MSW is proposed after summarizing the consolidation model for unsaturated porous media and high-kitchen-waste landfill.

The model takes pore gas pressure and matrix suction as variables. The model is based on hydro-mechanics coupled model for unsaturated porous media, taking bulk modulus of solid particles in waste into account. The porosity and relative permeability of waste change during loading process. A typical example is simulated using OpenGeoSys software to study the influence of age, bulk modulus, permeability on consolidation of municipal solid waste. The model is instructive.

Keywords

Consolidation Municipal solid waste Unsaturated 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.MOE Key Laboratory of Soft Soils and Geoenvironmental EngineeringZhejiang UniversityHangzhouChina

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