Affiliation:
1. Iran University of Science and Technology
2. Iranian Research Organization for Science and Technology
Abstract
Abstract
Water treatment is crucial due to rising water demand across the board, including drinking, agriculture, industry, etc. Pathogens are a type of contamination that must be studied to improve water purification methods. This study investigates the elimination of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) using Clinoptilolite/TiO2/ZnO nanocomposite with varied TiO2/ZnO ratios of 1:1, 1:2, and 2:1 under UVA and UVC light irradiation. To synergize the effect of coupling TiO2 with ZnO, we synthesized nanocomposite Clinoptilolite/TiO2/ZnO to make a powerful system for water and wastewater disinfection. The characterization tests, including X-ray diffraction, field emission scanning electron microscopy, X-ray energy diffraction, Fourier-transform infrared spectroscopy, diffuse reflection spectroscopy, and nitrogen adsorption-desorption, were performed to confirm the structure. The optimum response for bacterial removal was found by using the determination-optimal (D-optimal) design of response surface methodology (RSM). 100% removal was obtained for E. coli and S. aureus under UVA irradiation and contact time of 100 min for both of them.
Publisher
Research Square Platform LLC
Reference49 articles.
1. Present situation of wastewater treatment in the Iranian industrial estates: Recycle and reuse as a solution for achieving goals of eco-industrial parks;Piadeh F;Resour. Conserv. Recycl.,2014
2. Jacangelo, J. G., Trussell, R. R., Harza, M. W. & Lane, S. M. Presented, Followed By a Discussion of. 1–15 (1999).
3. Water, Sanitation, Hygiene and Health: A Primer for Health Professionals;World Health Organization (WHO);World Heal. Organ.,2019
4. Characterization of Escherichia coli isolated from migratory water fowls in Hakaluki Haor, Bangladesh;Hossain FMA;Glob. J. Med. Public Heal.,2012
5. Escherichia coli: On-farm contamination of animals;Fairbrother JM;OIE Rev. Sci. Tech.,2006