پیام رسان بله
COD and nitrate removal from wastewater using Fe3O4 in the presence of electromagnetic field
COD and nitrate removal from wastewater using Fe3O4 in the presence of electromagnetic field
Fateme Mohamadi1 Amideddin Nouralishahi2 Omid Tavakoli3
1) University of Tehran, Iran, Email:
2) University of Tehran, Iran, Email:
3) University of Tehran, Iran, Email:
IOI Code
:
XCAZ-EFGAG
Publication :
2nd. International Congress on science & Engineering - paris(parisconf.com)
Abstract :
High level of contaminants, like nitrates and organic compounds, in industrial wastewater streams has been considered as one of the most critical environmental problems in recent decays. The presence of nitrate species in the surface water endangers human life and other bio-organisms. Therefore, before discharging into the environment, wastewater streams must be treated by proper techniques to decrease the concentration of contaminants as much as possible. The current study investigates the effects of electromagnetic fields on the performance of Fe3O4 magnetic nanoparticles in adsorptive removal of nitrate and COD from wastewater samples. According to the results, the removal efficiencies of nitrate and COD are remarkably respectively improved from 43% and 49%, in the absence of electromagnetic field, to 64% and 58%, in the presence of the electromagnetic field. This can be attributed to the effect of electromagnetic field on increase in intermolecular movement and simultaneous weakening hydrogen bonds between pollutants and water molecules, which may lead to facilitating pollutant removal from the solution.
Keywords : treatment wastewater electromagnetic field nanoparticles