title: Evaluation of continuous mesophilic anaerobic sludge digestion after high temperature microwave pretreatment.
abstract: Effect of microwave pretreatment (MW) high temperature (175 degrees C) and MW intensity to waste activated sludge digested with acclimatized inoculum in single- and dual-stage semi-continuous mesophilic anaerobic digesters at different sludge retention times (SRTs) (20, 10 and 5 days) were investigated. MW pretreatment led to similar sludge stabilization at low SRTs (5 and 10 days). Although lowering MW intensity slightly improved sludge solubilization, it had a negative effect on digestion at low SRTs. Single-stage digesters with MW pretreatment surpass dual-stage digesters performances.
authors.affiliation: Department of Chemical and Biological Engineering, University of Ottawa, 161, Louis Pasteur Room A412, Ottawa, ON K1N6N5, Canada. toreci@eng.uottawa.ca
authors.forename: Isil
authors.initials: I
authors.lastname: Toreci
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Kennedy
authors.forename: Ronald L
authors.initials: RL
authors.lastname: Droste
mesh_terms: D000064:Acclimatization / Q000528:radiation effects; D000693:Anaerobiosis / Q000528:radiation effects; D001419:Bacteria / Q000528:radiation effects; D019149:Bioreactors; D006358:Hot Temperature; D008872:Microwaves; D010100:Oxygen; D012722:Sewage / Q000382:microbiology*; D012995:Solubility / Q000528:radiation effects; D014835:Volatilization / Q000528:radiation effects; D014865:Waste Disposal, Fluid
chemical_list: D012722:Sewage; D010100:Oxygen