02576nas a2200325   4500008004100000022001400041245007800055210006900133260006900202300001200271490000700283520148100290653002001771653001801791653002801809653001401837653002501851653001601876100002901892700002701921700002601948700002001974700002301994700002502017700001902042700002602061700002702087700003402114856010202148       2008                        eng d  a1369-703X00aEffect of hydrodynamic cavitation on zooplankton: a tool for disinfection0 aEffect of hydrodynamic cavitation on zooplankton a tool for disi  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcDEC  a320-3280 v423 a<p>Application of hydrodynamic cavitation for disinfection of water is gaining momentum, as it provides environmentally and economically sound options. In this effort, the effect of cavitating conditions created by differential pump valve opening and that created by flowing through a cavitating element (orifice plates) on the microbes (zooplankton in sea water) is described. The experimental results are compared with modelling of cavitating conditions that includes cavity dynamics, turbulence generated by individual oscillating cavity, cell wall strength and geometrical and operating parameters of cavitation device. Theoretical model for quantifying the cavitationally generated turbulent shear and extent of microbial disinfection has been developed. Experimental results indicated that cavitation and/or turbulent fluid shear dominantly originating from cavitation are effective tools for sea water disinfection as more than 80% of the zooplankton present in the sea water were killed. It was also observed that shock waves generated due to cavitation is not the sole cause for zooplankton disruption. A correct physical mechanism accounting fluid turbulence and shear, generated from stable oscillation of cavity, significantly contribute towards the disruption. Further refinement of the model presented will serve as a basis for higher degree of disinfection and provide a practical tool for sea water disinfection. (C) 2008 Elsevier B.V. All rights reserved.</p>10aCell disruption10aheat transfer10aHydrodynamic cavitation10aModelling10aWastewater treatment10aZooplankton1 aSawant, Subhash, Shivram1 aAnil, Arga, Chandrashe1 aKrishnamurthy, Venkat1 aGaonkar, Chetan1 aKolwalkar, Janhavi1 aKhandeparker, Lidita1 aDesai, Dattesh1 aMahulkar, Amit, Vinod1 aRanade, Vivek, Vinayak1 aPandit, Aniruddha, Balchandra  uhttps://library.ncl.res.in/content/effect-hydrodynamic-cavitation-zooplankton-tool-disinfection-0