alexa Energy recovery from grass using two-phase anaerobic digestion.
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Yu HW, Samani Z, Hanson A, Smith G

Abstract Share this page

Abstract Municipal solid wastes are major sources of air, water and soil contamination. There is a need for alternative waste management techniques to better utilize the waste and minimize its adverse environmental impact. A two-phase pilot-scale bio-fermentation system was used to evaluate the feasibility of producing methane from grass waste, a major constituent of solid wastes. The bi-phasic system consists of a solid phase and a methane phase. Leachate is re-circulated through the solid phase until a desired level of volatile fatty acid (VFA) is accumulated in the leachate. The leachate is then transferred to the methane reactor where the VFA is converted to methane. The results showed that 67\% of the volatile solids in the waste can be converted into soluble chemical oxygen demand in a period of six months. The system produced an average of 0.15 m3 of methane per kg of grass. The average methane concentration in the produced gas was 71\%. A mathematical model was developed to estimate the methane and carbon dioxide concentrations in the gas phase as a function of reactor properties.
This article was published in Waste Manag and referenced in International Journal of Waste Resources

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 3rd International Conference and Expo on Oil and Gas
    July 13-14, 2017 Berlin, Germany
  • 2nd International Conference on Biochemistry
    September 28-29, 2017 Dubai, UAE
  • 3rd International Conference on Chemical Engineering
    October 2-4, 2017 Chicago, Illinois ,USA
  • 2nd Euro Global Summit and Expo on Biomass and Bioenergy
    October 12-13, 2017 London, UK
  • 2th International Conference on Environmental Toxicology and Ecological Risk Assessment
    October 19-20, 2017 Atlanta, Georgia, USA
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords