title: Kinetics model for combined (alkaline+ultrasonic) sludge disintegration.
abstract: Combined (alkaline+ultrasonic) technology could be applied as pretreatment to disintegrate sludge flocs and disrupt bacterial cells' walls. Influence factors were investigated, including ultrasonic density, ultrasonic intensity, sludge pH and sludge concentration. Based on the test data, kinetics model for sludge disintegration was established by applying multivariable linear regression method. It could be inferred from the kinetics model that sludge pH had the most significant effect on the sludge disintegration.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, PR China.
authors.forename: Chunling
authors.initials: C
authors.lastname: Li
authors.forename: Guangfei
authors.initials: G
authors.lastname: Liu
authors.forename: Ruofei
authors.initials: R
authors.lastname: Jin
authors.forename: Jiti
authors.initials: J
authors.lastname: Zhou
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
mesh_terms: D000468:Alkalies / Q000737:chemistry* / Q000528:radiation effects*; D003198:Computer Simulation; D007700:Kinetics; D008954:Models, Biological; D012037:Refuse Disposal / Q000379:methods*; D012722:Sewage / Q000737:chemistry*; D013010:Sonication
chemical_list: D000468:Alkalies; D012722:Sewage