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DEVELOPMENT OF DESIGN EQUATION FOR A BATCH-RECIRCULATED PHOTOREACTOR AT PHOTOOXIDATIVE REMOVAL OF A MODEL CONTAMINANT FROM TEXTILE INDUSTRY
Abstract
The aim of this study is development of design equation for batch-recirculated reactor at photooxidative removal of C.I. Acid Red 17 (AR17) as a model contaminant from textile industry with UV/H2O2 process. Reactor which used is a combination of an annular photoreactor with UV-C lamp emitting at 254 nm from center of photoreactor and a continuous stirred tank reactor (CSTR). Design equation developed by combining of the mass balance and rate equation. This equation predicts that pseudo-first-order reaction rate constant ( ) ap1 k for removal of AR17 with UV/H2O2 process at batchrecirculated reactor increases with increasing volumetric flow rate of liquid at reactor ( 0 $\upsilon$ ) and decreases with increasing liquid volume at CSTR ( 1 V ). Experimental results are in good agreement with developed design equation. Also, pseudo-first-order reaction rate constant at annular photoreactor ( ) ap2 k which obtained with nonlinear regression analysis of design equation to experimental data, decreases with increasing of 0 $\upsilon$ and 1 V . The ap1 k is strongly depend to 0 $\upsilon$ and 1 V but ap2 k is strongly depend to 0 $\upsilon$ more than 1 V .
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References9
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