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Recently Published Research

Oct 2019

Augmentation of Granular Anaerobic Sludge with Algalytic Bacteria Enhances Methane Production from Microalgal Biomass

2019. Doloman, A, Pererva, Y, Cortez, M. H., Sims, R.C., Miller, C.D. Published in Fermentation. Invited for special issue "Fermentation Process in Biorefinery."

Anna Doloman and Yehor Pererva are PhD students in the BE Department. Drs Ron Sims and Charles Miller are BE faculty and Miller is corresponding author.

This study describes an approach to improve conversion of a waste microalgal biomass into a useful resource, biogas. Novel bacteria, isolated from Logan Wastewater Treatment Lagoons, were used to augment anaerobic digestion of microalgal biomass and led to a significant increase in production of biogas. The demonstrated experimental approach is of value to all the areas of biological waste treatment and can be applied to enhance energy recovery with a sustainable resource use.

Diagram of processes described above

Activity of Preserved Anaerobic Sludge.

Published in Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering of Science. Doloman, A, Sims, R.C., Miller, C.D.

Anna Doloman is a PhD student in the BE Department. Drs Ron Sims and Charles Miller are BE faculty and Miller is corresponding author.

This research investigated how prolonged storage at different temperatures affects activity of anaerobic sludge. Active anaerobic sludge harbors microorganisms that can convert organic waste into biogas, and when bioreactors are shut down for maintenance, microbial activity can be lost. This study compares different methods of sludge storage and concludes that microbial activity is still significant after 6 months of storage. These results have a direct value to all the anaerobic digestion industries that need to store their active microbial consortia.

Diagram of processes described above