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

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Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 (ICEG 2018)

Part of the book series: Environmental Science and Engineering ((ENVENG))

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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.

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Author information

Authors and Affiliations

  1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, 310058, China

    Ke Li, Wenjie Xu & Yunmin Chen

Authors
  1. Ke Li
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  2. Wenjie Xu
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  3. Yunmin Chen
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Corresponding author

Correspondence to Wenjie Xu .

Editor information

Editors and Affiliations

  1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China

    Liangtong Zhan

  2. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China

    Yunmin Chen

  3. Department of Civil Engineering, Monash University, Clayton, VIC, Australia

    Abdelmalek Bouazza

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Li, K., Xu, W., Chen, Y. (2019). A New Consolidation Model for Unsaturated High-Kitchen-Waste-Content MSW. In: Zhan, L., Chen, Y., Bouazza, A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2. ICEG 2018. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-2224-2_9

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