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Raw and treated MSW stabilisation in laboratory scale bioreactor landfills

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Author Affiliations

  • 1Department of Civil Engineering, Aligarh Muslim University, Aligarh, India
  • 2Department of Civil Engineering, Aligarh Muslim University, Aligarh, India
  • 3Department of Civil Engineering, Aligarh Muslim University, Aligarh, India

Res. J. Recent Sci., Volume 13, Issue (3), Pages 20-27, July,2 (2024)

Abstract

Bioreactor landfills (BLFs) are an effective and sustainable method for waste stabilisation. The process involves controlled recirculation of leachate back into the landfill, enhancing the biodegradation of municipal solid waste and thus increasing its efficiency. To manage large volumes of waste in a landfill, the waste undergoes pre-treatment, which has shown to yield superior results for biodegradation in a shorter time frame compared to untreated waste. This is because pre-treatment leads to lower biogas production and leachate pollution potential. This study focuses on two anaerobic bioreactors out of which one is filled with untreated municipal solid waste (MSW) and the other with windrow compost as treated MSW. The aim is to provide a comparative analysis to examine the effect of treatment on biodegradation and stabilisation in both untreated and treated MSWs. During the ongoing study period of about 10 months, data from the initial 3 months (13 weeks) is shared. Treated waste has shown better results compared to untreated MSW due to its lower pollution potential. It is hypothesized that treated waste will yield superior results throughout the entire study period in terms of environmental sustainability. Stabilisation of waste matrix in treated MSW is expected to be done in almost half duration as compared to that of raw MSW.

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