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Related Experiment Videos

Increased biogas production using microbial stimulants.

S Singh1, S Kumar, M C Jain

  • 1Division of Environmental Sciences, Indian Agricultural Research Institute, Nuclear Research Laboratory, New Delhi.

Bioresource Technology
|May 9, 2001
PubMed
Summary

Microbial stimulants Aquasan and Teresan significantly boosted biogas production from cattle dung and kitchen waste. Aquasan increased yields by up to 55%, while Teresan enhanced biogas from mixed waste by 34.8%.

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Area of Science:

  • Anaerobic Digestion
  • Microbial Biotechnology
  • Renewable Energy

Background:

  • Biogas production from organic waste is crucial for sustainable energy.
  • Optimizing biogas yields requires understanding microbial processes.
  • Novel microbial stimulants can enhance anaerobic digestion efficiency.

Purpose of the Study:

  • To evaluate the efficacy of Aquasan and Teresan microbial stimulants.
  • To determine the impact of these stimulants on biogas yields from cattle dung and mixed waste.
  • To identify optimal dosage and application strategies for enhanced biogas production.

Main Methods:

  • Laboratory-scale incubation studies using cattle dung and a mixture of cattle dung and kitchen waste.
  • Application of Aquasan at varying concentrations (10, 15, 20 ppm) as single and dual doses.

Related Experiment Videos

  • Application of Teresan at 10 ppm to mixed waste at different total solids (TS) concentrations.
  • Measurement of biogas yields (liters per kilogram of dry matter).

    • Main Results:

    • Aquasan significantly increased biogas yields from cattle dung, with optimal results at 15 ppm, yielding 39% (single dose) and 55% (dual dose) higher gas than controls.
    • Dual application of Aquasan showed a further 15-16% increase in gas yields.
    • Teresan addition at 10 ppm to mixed waste increased biogas yield by 34.8% at 15% TS concentration compared to uninoculated controls.

    Conclusions:

    • Aquasan and Teresan are effective microbial stimulants for enhancing biogas production.
    • Optimized dosage and application timing of stimulants can maximize biogas yields.
    • These findings support the use of microbial stimulants in anaerobic digestion for improved biogas generation from agricultural and kitchen waste.