02572nas a2200241   4500008004100000022001400041245015400055210006900209260007300278300001200351490000700363520163200370653004002002653002802042653001302070653002702083653001202110100002402122700001802146700002202164700002202186856012202208       2016                        eng d  a1350-417700aEffect of process intensifying parameters on the hydrodynamic cavitation based degradation of commercial pesticide (methomyl) in the aqueous solution0 aEffect of process intensifying parameters on the hydrodynamic ca  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a283-2930 v283 a<p>Methomyl, a carbamate pesticide, is classified as a pesticide of category-1 toxicity and hence shows harmful effects on both human and aquatic life. In the present work, the degradation of methomyl has been studied by using hydrodynamic cavitation reactor (HC) and its combination with intensifying agents such as H2O2, fenton reagent and ozone (hybrid processes). Initially, the optimization of operating parameters such pH and inlet pressure to the cavitating device (circular venturi) has been carried out for maximizing the efficacy of hydrodynamic cavitation. Further degradation study of methomyl by the application of hybrid processes was carried out at an optimal pH of 2.5 and the optimal inlet pressure of 5 bar. Significant synergetic effect has been observed in case of all the hybrid processes studied. Synergetic coefficient of 5.8, 13.41 and 47.6 has been obtained by combining hydrodynamic cavitation with H2O2, fenton process and ozone respectively. Efficacy of individual and hybrid processes has also been obtained in terms of energy efficiency and extent of mineralization. HC + Ozone process has proved to be the most effective process having highest synergetic coefficient, energy efficiency and the extent of mineralization. The study has also encompassed the identification of intermediate by-products generated during the degradation and has proposed the probable degradation pathway. It has been conclusively established that hydrodynamic cavitation in the presence of intensifying agents can effectively be used for complete degradation of methomyl. (C) 2015 Elsevier B.V. All rights reserved.</p>10aAdvanced Oxidation Processes (AOPs)10aHydrodynamic cavitation10aMethomyl10aSynergetic coefficient10aVenturi1 aRaut-Jadhav, Sunita1 aSaini, Daulat1 aSonawane, Shirish1 aPandit, Aniruddha  uhttps://library.ncl.res.in/content/effect-process-intensifying-parameters-hydrodynamic-cavitation-based-degradation-0