Decolourisation of the Dyes in Aques Solution Using a New Combinated System (UV/H2O2/biosorbent)

In this research, Comparison of decolorization of Reactive black B dye that have the most application in the Iranian textile industries, by using of advanced oxidation UV/H2O2 and UV/H2O2/ biosorbent were investigated. The nonliving biomass of Penicilliumcamembertiwas used as a biosorbent for the sorption of dye from anaqueous solution. In the first stage, dye removal by UV/H2O2 in continues system was investigated. The results showed that removal efficiency, in the optimum condition , pH=6.25 , dye concentration= 30mg/L , hydrogen peroxide concentration= 500mg/L and irradiation time 35 min were 84.34%. the same condition COD and TOC removal (%) were 77.3% and 35% respectively. In the second stage , dye removal by UV/H2O2/biosorbent was studied.For this purpose The immobilized Penicilliumcamemberti (biosorbent) fitted in polyetelen filter then filter of biosorbent was packed into a reactorThe results showed that removal efficiency , in the optimum condition ( pH=6.25 , [RBB]= 30mg/L , [H2O2]= 500mg/L and irradiation time 15 min were 96.46%. COD and TOC removal (%) were 90.22% and 56% respectively. Electrical energies per order (EE/O) estimated for both the processes.