Integrated strategy to enhance biogas production from mango peel waste

Abstract

The present study has successfully explored the use of pomegranate seed de-oiled cake as a major additive and micronutrients solution as a minor additive to enhance production of biogas and enrich its methane content, using mango peel as the initial substrate. While micronutrients solution has activated enzymes to carry out anaerobic digestion for optimal production of biogas and methane, pomegranate seed de-oiled cake has (a) provided buffering capacity for stabilized pH/alkalinity: acidity ratio, (b) reduced C:N ratio of the substrates to facilitate anaerobic digestion. Cumulatively effecting enhanced biogas generation (0.82 m3 kg-1 VS fed) and its rich methane content (0.64 m3 kg-1 VS fed). © 2013 Global NEST Printed in Greece. All rights reserved.