1
Department of Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran.
2
Nanotechnology Research Institute, Shiraz University, Shiraz, Iran.
Abstract
A method for treating fuel oil and waste water of power plant is suggested which is including vanadium elimination through contacting with humic acid coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic acid (HA) as a compound having carboxyl, hydroxyl and amin functional groups. HA/Fe3O4 nanoparticles were prepared by a co-precipitation procedure and were characterized using different techniques such as dynamic light scattering (DLS), Transmission electron microscopy (TEM), FTIR spectroscopy, X-ray diffraction spectroscopy. The surface charge of the nano-adsorbents was determined by Zeta potential technique and their magnetic properties were investigated by vibrational sample magnetometer (VSM). It was observed that the synthesized nanoparticles have a mean diameter about 14 nm. The effects of several experimental factors such as pH, adsorbent dosage, contact time and initial vanadium concentration, on the nano-adsorbent ability for vanadium removal were investigated. The best results were obtained using 10 mg/ml of nanoparticles at pH 5 and contact time 30 min. At this condition about 99.5 % of V(IV) could be removed from synthetic samples. Maximum adsorption capacity for vanadium (IV) was 8.97 mg/g which was fitted to Langmuir isotherm model. The ability of HA/Fe3O4 for the vanadium removal from fuel oil and wastewater of power plant was also investigated. It was observed that more than 93% of vanadium content could be removed from waste water and 67% form fuel oil using proposed nano-adsorbent.
Zeinali, S., Tatian, S. (2019). Vanadium Removal from Fuel Oil and Waste Water in Power Plant Using Humic Acid Coated Magnetic Nanoparticles. International Journal of Nanoscience and Nanotechnology, 15(4), 249-263.
MLA
S. Zeinali; S. Tatian. "Vanadium Removal from Fuel Oil and Waste Water in Power Plant Using Humic Acid Coated Magnetic Nanoparticles". International Journal of Nanoscience and Nanotechnology, 15, 4, 2019, 249-263.
HARVARD
Zeinali, S., Tatian, S. (2019). 'Vanadium Removal from Fuel Oil and Waste Water in Power Plant Using Humic Acid Coated Magnetic Nanoparticles', International Journal of Nanoscience and Nanotechnology, 15(4), pp. 249-263.
VANCOUVER
Zeinali, S., Tatian, S. Vanadium Removal from Fuel Oil and Waste Water in Power Plant Using Humic Acid Coated Magnetic Nanoparticles. International Journal of Nanoscience and Nanotechnology, 2019; 15(4): 249-263.