Treatment of Reactive Brilliant Red X-3B Simulated Wastewater through Cavitating Water Jet Assisted Photocatalysis

Cavitating water jet assisted photocatalysis was used to treat Reactive Brilliant Red X-3B simulated wastewater 3.3 L.Effects of tap water and distilled water were compared,and temperature,concentration of TiO2,pH,initial concentration of dye and throat diameter of venture were investigated.For the simulated wastewater,results showed that the method overcame the shortcoming of catalyst getting together in traditional photocatalysis.Decolorization efficiency and kinetic constant in distilled water solvent were 2.1 and 4.2 times higher than tap water solvent respectively.Under the optimum treatment conditions as dye concentration 30 mg/L,temperature 60 ℃,TiO2150 mg/L,pH value 3.0,the decolorization efficiency was up to 96% in 90min.Considering the practical situation,the recommended treatment conditions were as temperature 40 ℃,pH value 6.0,veturi throat diameter 1.5mm and the same other value as above,the decolorization efficiency and COD removal were up to 69% and 54% respectively,which are better to guide the practice.