Biogas production is all in the mixing
David Kilper/WUSTL PhotoMuthanna Al-Dahhan (left) and graduate student Rajneesh Varma are researching effective ways to take agricultural waste and make biofuel out of it.Engineers at Washington University in St. Louis, using an impressive array of imaging and tracking technologies, have determined the importance of mixing in anaerobic digesters for bioenergy production and animal and farm wastes treatment. They are studying ways to take “the smell of money,” as farmers long have termed manure’s odor, and produce biogas from it.