Biosynthesis of Iron Oxide Nanoparticles and Using it to Support the Efficiency of Wastewater Filtration System

Abstract

Nanoparticles biosynthesis has gained great importance as an active eco-friendly method with economic benefit which overcame on other chemical and physical methods.This research involved green biosynthesis of iron oxide nanoparticles (IONPs) using Escherichia coli (E.coli) isolated from wastewater in Mosul city. Characterization of nanoparticles was performed by using many techniques which included UV-Vis Spectroscopy, Scanning Electron Microscope (SEM), Atomic Force Microscope (AFM), X-Ray Diffraction (XRD) and Fourier Transforms Spectroscopy (FTIR).Designing of a locally lab scale wastewater treatment plant was done by using IONPs adding to a dual water purification system, after tightly wrapping the filter with (1%) of IONPs solution up to saturation. Moreover, control filter was used. Sample of wastewater was passed through these filters to detect its effect on wastewater quality, the results showed that NPs filters improved physical, chemical and biological properties of wastewater including total plate count, coliform, fecal coliform and total fungi.

Dosificación de nanopartículas de hierro zero valente y tiempo de contacto para la eliminación de coliformes en aguas residuales municipales

“…log de 106 CFU /mL de E. coli en 1 min. Por ultimo,Al-Allaf et al (2023); Malakotian et al (2017) nos muestran que las nanopartículas de óxido de hierro en bajas concentraciones pueden actuar como fuente de iones de hierro requeridos por microorganismos, pero en altas concentraciones pueden causar estrés y daño celular en las células bacterianas al reducir el crecimiento celular. Con respecto al tiempo de contacto, puede verse que la eliminación de coliformes aumentó de forma significativa cuando el tiempo de contacto fue mayor logrando una eliminación de 93.77% y 95.20% para coliformes totales y termotolerantes respectivamente.…”