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A Coupling Kinetics Model for Pollutant Release and Transport in the Process of Landfill Settlement

Author

Listed:
  • Ying Zhao

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China)

  • Qiang Xue

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China)

  • Lei Liu

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China)

Abstract

A coupling kinetics model is developed to simulate the release and transport of landfill leachate pollutants in a deformable municipal solid waste landfill by taking into account of landfill settlement, seepage of leachate water, hydrolyse of insoluble and degradable organic pollutants in solid phase, biodegradation of soluble and degradable organic pollutants in solid phase and aqueous one, growth of aerobic and anaerobic microorganism, and consumption of dissolved oxygen. The release and transport of organic pollutants and microorganisms in landfills in the process of landfill settlement was simulated by considering no hydraulic effect. Simulation results demonstrated that the interaction between landfill settlement and the release, transport and biodegradation of landfill leachate pollutants was significant. Porosity and saturated hydraulic conductivity were not constants because of the landfill settlement, which affected the release, transport and biodegradation of landfill leachate pollutants, and furthermore acted on the landfill settlement. The simulation results accorded with the practical situation, which preliminarily verified the reliability of the mathematical model and the numerical program in this paper.

Suggested Citation

  • Ying Zhao & Qiang Xue & Lei Liu, 2012. "A Coupling Kinetics Model for Pollutant Release and Transport in the Process of Landfill Settlement," IJERPH, MDPI, vol. 9(10), pages 1-17, September.
    • Handle: RePEc:gam:jijerp:v:9:y:2012:i:10:p:3437-3453:d:20360
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    Cited by:

    1. Zhikun Ding & Menglian Zhu & Zezhou Wu & Yanbin Fu & Xia Liu, 2018. "Combining AHP-Entropy Approach with GIS for Construction Waste Landfill Selection—A Case Study of Shenzhen," IJERPH, MDPI, vol. 15(10), pages 1-21, October.

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