Integration between bacterial consortium and magnetite (FeO) nanoparticles for the treatment of oily industrial wastewater.

The study aimed to investigate the efficiency of exogenous bacterial consortium (Enterobacter cloacae and Pseudomonas otitidis) decorated (immobilized) with FeO Nanoparticles for the treatment of petroleum hydrocarbon-contaminated wastewater. Glycine coated magnetite Nanoparticles (FeO NPs) were prepared using reverse co-precipitation method and were characterized using X-ray diffraction, transmission and scanning electron microscopy and vibrating sample magnetometer. They were used to decorate exogenous bacterial consortium (Enterobacter cloacae and Pseudomonas otitidis) at 3 different FeO/bacteria ratios (1:1, 1:3 and 3:1 w/w).