Two new ethanologenic strains (FBR4 and FBR5) of Escherichia coli were constructed and used to ferment corn fiber hydrolysate. The strains carry the plasmid pLOI297, which contains the genes from Zymomonas mobilis necessary for efficiently converting pyruvate into ethanol. Both strains selectively maintained the plasmid when grown anaerobically. Each culture was serially transferred 10 times in...

Anaerobic granulated biomass-based treatment is a sustainable alternative for municipal wastewater treatment. Each granule in the system comprised of complex community anaerobic microorganisms embedded biofilm matrix. The aim this work was to implement model simulation biogas production and COD removal as observed an experimental up-flow sludge blanket (UASB) reactor system. Additionally, selec...

the cane alcohol vinasse assessment on the removal efficiency of a fixed biomass anaerobic reactor (fbar) was evaluated. crude vinasse was used to feed the reactor. the fbar was operated with organic load rate (olr) of 0.5, 1, 3 and 6 gcod/l/d. removal efficiencies of 85, 82, 75 and 66 per cent were observed respectively. the fba reactor presented an excellent removal of organic matter, however...

Hydrothermal carbonization is emerging as a promising eco-friendly technology for the management of wet biomass wastes through energy recovery. It avoids drying feedstock and operates at much lower temperature than conventional thermal conversion technologies, giving rise to carbonaceous solid, hydrochar, improved fuel quality with respect starting biomass. However, aqueous fraction resulting f...