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DEVELOPMENT OF DESIGN EQUATION FOR A BATCH-RECIRCULATED PHOTOREACTOR AT PHOTOOXIDATIVE REMOVAL OF A MODEL CONTAMINANT FROM TEXTILE INDUSTRY

AUTHOR/S: M. A. BEHNAJADY, E. SILIANI-BEHROUZ, N. MODIRSHAHLA
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 499-504 pp

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
υ ) 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
υ and
1 V . The ap1 k is strongly depend to 0
υ and 1 V but ap2 k is strongly depend to 0
υ more
than 1 V .

Keywords: Advanced Oxidation Processes (AOPs), design equation, batch-recirculated reactor, C.I. Acid Red 17.