Ammonia Content of Bottom Phase Liquid from Pyrolyisis of Sewage Sludge in a Bubbling Fluidized Bed

M. Azuara, J. Abrego, I. Fonts, G. Gea & M.B. Murillo
A distinctive feature of sewage sludge pyrolysis liquids is the existence of three different phases (namely top, middle and bottom phase). Unlike the others, the bottom phase, has high water content and is not suitable for fuel purposes. Instead, it could be used as fertiliser due to its high content in nitrogen compounds. In this work two different sewage sludge samples have been pyrolyzed and the changes on the relative distribution of each phase have...