REMOVAL OF SOME HEAVY METALS AND POLLUTED ANTIBACTERIAL ACTIVITIES VIA SYNTHESIZED MAGNETIC NANO-COMPOSITE OF IRON OXIDE AND DERIVATIVES: CHEMICAL AND MICROBIAL TREATMENT CASE STUDY: AL TARD-BILRAHA DRAIN ISMAILIA, EGYPT

Document Type : Original Article

Authors

1 Egyptian Desalination Research Center of Excellence (EDRC), Water Treatment and Desalination Unit, Desert Research Center, Cairo, Egypt

2 Department of Soil Fertility and Microbiology, Desert Research Center, El-Matareya, Cairo, Egypt

Abstract

For preparation of nano-composite (iron oxide nanoparticles coated by TiO2) sol-gel method was used. The difference between iron oxide nanoparticles and iron oxide nanoparticles coated by TiO2, which had an antibacterial effect and ability to remove heavy metals was discussed. The nano-sized particles of prepared metal nanoparticles were about 55-65 nm for the two types. Different characterization instruments such as X-ray diffraction (XRD) analysis; scanning electron microscopy (SEM), FT-IR, particle size analyzer and VSM were used to know the magnetic properties of prepared nano-composites. The antibacterial effect of two types of nano-composite were investigated against pathogenic bacteria, which illustrated that nanoparticles had moderate antibacterial activity against both gram-positive and gram negative pathogenic bacterial strains, maintains pharmaceutical and biomedical industries application. High reduction percent of antibacterial activity was shown after 30 min by 150 mg/ml of nanoparticles prepared. Also, the elevated inhibition percent was obtained due to removal of aluminum and iron ions from poisoned water and decreasing effect of COD and BOD concentrations with reducing total nitrogen percent.

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History

  • Receive Date: 05 January 2018
  • Revise Date: 06 February 2018
  • Accept Date: 09 February 2018

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