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Related Experiment Videos

Ensilage of pineapple processing waste for methane generation.

D Swaroopa Rani1, Krishna Nand

  • 1Department of Food Microbiology, Central Food Technological Research Institute, Mysore-570 013, India. roopadasari@hotmail.com

Waste Management (New York, N.Y.)
|May 4, 2004
PubMed
Summary

Pineapple peel waste can be converted into biogas through ensilage, a process that enhances methane production and reduces environmental pollution. This method offers a sustainable solution for managing agricultural byproducts.

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Area of Science:

  • Biotechnology
  • Environmental Science
  • Waste Management

Background:

  • Pineapple peel waste is a seasonal byproduct posing environmental challenges.
  • The high carbohydrate content in pineapple peels makes them suitable for anaerobic digestion.
  • Effective waste management strategies are crucial for sustainable agriculture.

Purpose of the Study:

  • To evaluate the potential of ensilaged pineapple peel as a substrate for methane generation.
  • To compare biogas yield and methane content from ensilaged, fresh, and dried pineapple peels.
  • To assess the impact of ensilage on the biological oxygen demand of pineapple processing waste.

Main Methods:

  • Pineapple peels were ensilaged to convert carbohydrates into volatile fatty acids.

Related Experiment Videos

  • Biogas production and methane content were measured using a biogas digester.
  • Biological oxygen demand reduction was analyzed before and after ensilage.

    • Main Results:

    • Ensilaging converted 55% of carbohydrates into volatile fatty acids.
    • Ensilaged pineapple peel yielded 0.67 m3 biogas/kg volatile solids with 65% methane.
    • Fresh and dried peels yielded 0.55 m3/kg VS (51% methane) and 0.41 m3/kg VS (41% methane), respectively.
    • Ensilage reduced biological oxygen demand by 91%.

    Conclusions:

    • Ensilage is an effective pretreatment for enhancing biogas production from pineapple peel waste.
    • Pineapple peel waste can be valorized into a sustainable energy source through anaerobic digestion.
    • This process offers a dual benefit of waste reduction and renewable energy generation.