Effects of circular orifices plates with Venturi tube on degradation of hydrophilic and hydrophobic pollutants

摘要

Refractory wastewater is characterized by high concentration of organic matter, high toxicity for biotic systems, bio-recalcitrant, complex component, and stable chemical structures. This paper studies effect of circular orifices plate with Venturi tube on degradation of hydrophilic pollutant and hydrophobic pollutant by considering the different sizes and numbers of circular orifices plate. Also, effects of initial concentration and operation time were considered. Degradation rate was analyzed by ultraviolet spectrophotometer and pressures at measuring points were measured by pressure data acquisition system. Variations of degradation rate with orifice number, orifice size, initial concentration and operation time were developed.