SHRIKANT BHAUSAHEB RANDHAVANE
Emerging and Innovative Technologies
Chlorpyrifos is broad spectrum pesticide, which belong to organophosphate group of pesticides is used world-wide for different applications such as agriculture, pest control, etc. Its wide use has resulted into uncontrolled manufacturing and contamination of environmental matrices with second and third highest risk quotient to terrestrial species and aquatic species respectively. Hydrodynamic Cavitation process is being used in degradation of this compound from real effluent from Chlorpyrifos pesticide manufacturing. Paper primarily focuses on comparison between two different orifice plates configurations used as cavitating device in the reactor. Effect of different parameters (Hydraulic Characteristics, inlet pressure, reaction time, cavitation number, etc.) in terms of COD removal and Chlorpyrifos degradation has been studied and compared. Optimum inlet pressure of 5 bars exists for degradation of pollutants for both the plates. It is found that geometry of orifice plate plays important role in removal efficiencies of pollutant. Results obtained confirmed that orifice plate 1 with configuration of 1.5 mm 17 holes performed better with around 60% COD and 98% Chlorpyrifos removal as compared to orifice plate 2 having configuration of 2 mm single hole with 40% COD and 96% Chlorpyrifos in 2 hours duration time.
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