02597nas a2200277   4500008004100000022001400041245015200055210006900207260006900276300001200345490000800357520155100365653002701916653002801943653002201971653003401993653001002027653001202037100002402049700002202073700002302095700002202118700002602140700002602166856012702192       2016                        eng d  a1385-894700aTreatment of the pesticide industry effluent using hydrodynamic cavitation and its combination with process intensifying additives (H2O2 and ozone)0 aTreatment of the pesticide industry effluent using hydrodynamic   aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcJUL  a326-3350 v2953 a<p>Hydrodynamic cavitation (HC) and its combination with H2O2 and ozone have been applied in the present work for the treatment of industrial pesticide effluent. Initially, the effect of dilution of the effluent on the efficacy of hydrodynamic cavitation has been studied using circular venturi as a cavitator. Although an increase in the extent of dilution has not shown any beneficial effect on the actual moles of pollutant degraded, hybrid processes have been studied using 1:5 dilution due to very high TDS content of the effluent. Treatment of the industrial pesticide effluent using HC + ozone (3 gbh) process has demonstrated that the biodegradability index (BI) of the effluent increases from 0.123 to 0.324 after 2 h of operation. The rate of COD and TOC reduction has also increased by many folds by using HC in combination with ozone. In addition this, the treatment of industrial pesticide effluent using HC + H2O2 has also indicated that the rate of COD and TOC reduction increases significantly by using HC in combination with various loadings of H2O2. The study of interference of added H2O2 on the COD analysis has exhibited that the COD equivalence is 0.441 mg/L for 1 mg/L of H2O2. The energy efficiency and operating cost of various hybrid processes have been compared based on the cavitational yield and the cost of electricity. The combined process of HC and H2O2 has observed to be the most cost-effective one due to its higher cavitational yield and lower power consumption. (C) 2016 Elsevier B.V. All rights reserved.</p>10aBiodegradability index10aHydrodynamic cavitation10aHydrogen peroxide10aIndustrial pesticide effluent10aOzone10aVenturi1 aRaut-Jadhav, Sunita1 aBadve, Mandar, P.1 aPinjari, Dipak, V.1 aSaini, Daulat, R.1 aSonawane, Shirish, H.1 aPandit, Aniruddha, B.  uhttps://library.ncl.res.in/content/treatment-pesticide-industry-effluent-using-hydrodynamic-cavitation-and-its-combination