Skip to main content
Log in

Two-Phase Modeling of Leachate Recirculation Using Drainage Blankets in Bioreactor Landfills

  • Published:
Environmental Modeling & Assessment Aims and scope Submit manuscript

Abstract

A drainage blanket (DB) is a recently introduced leachate recirculation system (LRS) in bioreactor landfills, which involves the use of a blanket of high permeable material that is spread over a large area of the municipal solid waste (MSW). Based on the laboratory and field observations documented in the literature, the results of the performance and efficiency of bioreactor landfills vary greatly due to the empirical method followed to design the LRS. Therefore, a rational LRS design methodology that achieves an efficient bioreactor landfill and creates an optimal and safe environment is necessary. Two-phase flow modeling was performed in this study by representing the relative permeabilities of leachate and landfill gas with the van Genuchten function and fluid flow with Darcy’s law. The effects of heterogeneous-anisotropic MSW, the leachate injection rate, and the saturated and unsaturated hydraulic conductivities of the MSW on the moisture distribution in a typical bioreactor landfill cell using a DB as the LRS were modeled. Those results included saturation levels, maximum pore water and gas pressures, maximum influenced lateral spread (wetted width), maximum influenced wetted area, and outflow collected at leachate collection and removal system at the bottom of the landfill. The results indicate that the variation in the different parameters assumed has a significant influence on the successful distribution of the moisture. Unsaturated hydraulic properties considerably affect moisture flow and distribution in landfilled MSW. And, the intermittent mode of leachate recirculation has the potential for the development of gas pressures that must be considered to evaluate the stability of the landfill slopes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

Similar content being viewed by others

References

  1. USEPA. (2009). Municipal solid waste generation, recycling, and disposal in the United States: facts and figures for 2009 (pp. 1–12). Washington: Solid Waste and Emergency Response.

    Google Scholar 

  2. Reinhart, D. R., & Townsend, T. G. (1997). Landfill bioreactor design and operation. Washington: Lewis Publishers.

    Google Scholar 

  3. Sharma, H. D., & Reddy, K. R. (2004). Geoenvironmental engineering: site remediation, waste containment, and emerging waste management technologies. Hoboken: Wiley.

    Google Scholar 

  4. Reddy, K.R. (2006). Geotechnical aspects of bioreactor landfills. In Proceedings of Indian Geotechnical Conference—Geotechnical Engineering—Indian Experience. (pp. 79–94). Indian Institute of Technology, India: Indian Geotechnical Society (IGS).

  5. Reddy, K. R., Hettiarachchi, H., Parakalla, N., Gangathulasi, J., Bogner, J. E., & Lagier, T. (2009). Hydraulic conductivity of MSW in landfills. Journal of Environmental Engineering, 135, 1–7.

    Article  Google Scholar 

  6. ITRC. (2006). Characterization, design, construction, and monitoring of bioreactor landfills. Washington: Interstate Technology and Regulatory Council Alternative Landfill Technologies Team.

    Google Scholar 

  7. Hendron, D. M. (2006). Large landslide risks in solid waste facilities: geotechnical fundamentals count. Geo-Strata, Geo-Institute of ASCE, 6, 32–34.

    Google Scholar 

  8. Haydar, M. M., & Khire, M. V. (2007). Leachate recirculation using permeable blankets in engineered landfills. Journal of Geotechnical and Geoenvironmental Engineering, 133, 360–371.

    Article  Google Scholar 

  9. Kulkarni, H.S. (2012). Optimization of Leachate recirculation systems in bioreactor landfill. PhD thesis. Dept. of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL, U.S.A.

  10. Peaceman, D. W. (1977). Fundamentals of numerical reservoir simulation. New York: Elsevier Scientific Publishing Company.

    Google Scholar 

  11. Lu, N., & Likos, W. J. (2004). Unsaturated soil mechanics. Hoboken: Wiley.

    Google Scholar 

  12. ITASCA Consulting Group Inc. (ICGI) (2011). Fast Lagrangian analysis of continua (FLAC) version 7.0: fluid-mechanical interaction. User’s manual, 4th ed., Minneapolis.

  13. Benson, C. H., & Wang, X. (1998). Soil water characteristic curves for solid waste. Environmental Geotechnics Report, Dept. of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA.

  14. Haydar, M. M., & Khire, M. V. (2005). Leachate recirculation using horizontal trenches in bioreactor landfills. Journal of Geotechnical and Geoenvironmental Engineering, 131, 837–847.

    Article  Google Scholar 

  15. Kazimoglu, Y. K., McDougall, J. R., & Pyrah, I. C. (2006). Unsaturated hydraulic conductivity of landfilled waste. In The Proceedings of Unsaturated Soils, Geotechnical Special Publication 147 (pp. 1525–1534). Reston, VA: ASCE.

  16. Breitmeyer, R. J., & Benson, C. H. (2011). Measurement of unsaturated hydraulic properties of municipal solid waste. In the Proceedings of Geofrontiers 2011, Goetechnical Special Publication, 211 (pp. 1433–1442). Dallas: ASCE.

  17. Stoltz, G., Tinet, A. J., Staub, M. J., Oxarango, L., & Gourc, J. P. (2012). Moisture retention properties of municipal solid waste in relation to compression. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 138, 535–543.

    Article  Google Scholar 

  18. Tchobanoglous, G., Theisen, H., & Vigil, S. A. (1993). Integrated solid waste management, engineering principles and management issues. NewYork: McGraw-Hill.

    Google Scholar 

  19. Giri, R. K., & Reddy, K. R. (2014). Slope stability of bioreactor landfills during leachate injection: effects of heterogeneous and anisotropic municipal solid waste conditions. Waste Management & Research, 32, 186–197.

    Article  Google Scholar 

  20. Giri, R. K., & Reddy, K. R. (2014). Design charts for selecting minimum setback distance from side slope to horizontal trench system in bioreactor landfills. Geotechnical and Geological Engineering, 32, 1027–1037.

    Article  Google Scholar 

  21. Tokunaga, T. K., Wan, J., & Olson, K. R. (2002). Saturation‐matric potential relations in gravel. Water Resources Research, 38 32-1–32-7.

  22. Reddy, K. R., Giri, R. K., & Kulkarni, H. S. (2014). Design of drainage blankets for leachate recirculation in bioreactor landfills using two-phase flow modeling. Computers and Geotechnics, 62, 77–89.

    Article  Google Scholar 

Download references

Acknowledgment

This project was funded by the U.S. National Science Foundation (grant CMMI no. 0600441), which is gratefully acknowledged.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Krishna R. Reddy.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Reddy, K.R., Giri, R.K. & Kulkarni, H.S. Two-Phase Modeling of Leachate Recirculation Using Drainage Blankets in Bioreactor Landfills. Environ Model Assess 20, 475–490 (2015). https://doi.org/10.1007/s10666-014-9435-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10666-014-9435-1

Keywords

Navigation