Designing wastewater treatment plant by using biosynthesized titanium oxide nanoparticles

In this research, a lab scale wastewater treatment plant was locally designed as continuous culture of activated sludge and using dual water purification system titanium oxide nanoparticles (TiO2 NPs). Biosynthesis TiO2NPs characterization were done, then nanofilter prepared by tightly wrapping the filter with gauze moistened it 1% TiO2 NPs solution until saturation, control also prepared. Wastewater sample passed through each filter. The results showed that improved their quality values physical, chemical biological properties which included turbidity decreased from 561 to became 2.9 NTU, total solid suspended (1820, 1217 mg/l) (421, 2 respectively, oxygen demands (256, 410 (50, 41.5 respectively. NO3-1, PO4-3, SO4-2 reduced ( 100, 8.2, 78) (6.8, 0.9, 48) Additionally heavy metals successfully removed plate count, coliform, fecal coliform fungi highly decreased.