Photocatalytic removal of Pseudomonas aerognisa from air using immobilized Zno nanoparticle on Iranian natural zeolite

Bacterial agents in the air can act as a model for biological agent. This study used for studing the photo catalytic process of Zinc Oxide nanoparticels for removal of air contaminated with pseudomonas aerognisa In this study ZnO nanoparticles of 20-40 nm 5% immobilized on iranian natural zeolite (INZ). For photo catalytic process Ultraviolet A with power 8، 16 and 24 W were used. pseudomonas aerognisa. strain (ATCC: 27853) was applied in the research. The bacterial aerosol with concentrations of 107 colony forming units (CFU) per mL air flow were prepared by a nebulizer and injected to the system. The result of this research shows that the Residual bacteria in the effluent air flow digress with increases power of Ultraviolet. The brick trough for 24، 16 and 8 w/cm2 achieve 170، 120 and 30 min respectively ZnO nano particles immobilized on iranian natural zeolite photocatalytic process with high removal Air contaminated with biological agent that can cause them to maximize the efficiency of filtration and purification.