000079112 001__ 79112 000079112 005__ 20191122145052.0 000079112 0247_ $$2doi$$a10.1016/j.ultsonch.2018.05.015 000079112 0248_ $$2sideral$$a106373 000079112 037__ $$aART-2018-106373 000079112 041__ $$aeng 000079112 100__ $$0(orcid)0000-0003-4798-4660$$aCerecedo, L.M.$$uUniversidad de Zaragoza 000079112 245__ $$aWater disinfection by hydrodynamic cavitation in a rotor-stator device 000079112 260__ $$c2018 000079112 5060_ $$aAccess copy available to the general public$$fUnrestricted 000079112 5203_ $$aThe efficiency of a rotor-stator device for water disinfection based on hydrodynamic cavitation is investigated. Water is infected with E. coli and E. faecalis with initial concentrations in the range 5 × 102–1.2 × 106 CFU/ml. Various geometries of the cavitation channel between rotor and stator are tested, achieving bacterial annihilation in less than 10 min of treatment times. Microorganism permanent elimination is verified via micro-seeding to discard viable non-culturable bacteria; micro-seeding was done for those samples displaying no CFU growth via normalized cultures on a Petri dish. TEM photographs are analyzed and the extent of bacterial damages is tentatively correlated with the various cavitation mechanisms. Rotor-stator cavitation assemblies used in the current research are between one and two orders of magnitude more energy efficient than those tested by other investigators. Acoustic pressure spectra are measured to assess the implosion intensity. Parametric analyses are conducted changing the rotor diameter (110–155 mm), the cavitation channel contraction ratio, Amax/Amin(4.56–5.0), and the number of contractions (Nr:58–80 rotor vanes; Ns:8–16 stator vanes). 000079112 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000079112 590__ $$a7.279$$b2018 000079112 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b25 / 172 = 0.145$$c2018$$dQ1$$eT1 000079112 591__ $$aACOUSTICS$$b1 / 31 = 0.032$$c2018$$dQ1$$eT1 000079112 592__ $$a1.556$$b2018 000079112 593__ $$aAcoustics and Ultrasonics$$c2018$$dQ1 000079112 593__ $$aRadiology, Nuclear Medicine and Imaging$$c2018$$dQ1 000079112 593__ $$aChemical Engineering (miscellaneous)$$c2018$$dQ1 000079112 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000079112 700__ $$0(orcid)0000-0002-2267-8598$$aDopazo, C.$$uUniversidad de Zaragoza 000079112 700__ $$0(orcid)0000-0002-1827-7556$$aGomez-Lus, R. 000079112 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos 000079112 773__ $$g48 (2018), 71-78$$pUltrason. sonochem.$$tUltrasonics Sonochemistry$$x1350-4177 000079112 8564_ $$s1106280$$uhttps://zaguan.unizar.es/record/79112/files/texto_completo.pdf$$yPostprint 000079112 8564_ $$s37418$$uhttps://zaguan.unizar.es/record/79112/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000079112 909CO $$ooai:zaguan.unizar.es:79112$$particulos$$pdriver 000079112 951__ $$a2019-11-22-14:43:49 000079112 980__ $$aARTICLE