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Paper Details

Assessment of Steel Slag as a Persulfate Activator for Treatment of Landfill Leachate

Soubh AM*

Journal Title: Open Access Journal of Waste Management & Xenobiotics
Abstract


In this research, the performance of steel slag (SS) as an activator of persulfate (PS) for the removal the chemical oxygen demand (COD) of raw leachate landfill was studied. The experiments were conducted in a batch reactor. The SS was obtained from the Esfahan Steel Company, Iran. X-ray diffraction (XRD) and field emission scanning electron microscope (FE-SEM) and energy dispersive spectroscopy (EDS) analysis were used to investigate the characteristics of the SS. The effects of SS dosage (0-5 g L-1), PS/COD ratio (1-5), and reaction time (0-180 min) on the removal of leachate landfill. The Maximum removal efficiencies at optimize operational conditions (SS dosage 3 g L-1, PS/COD ratio: 3 and reaction time: 45 min) was 83%. The addition of SS (3 g L-1) led to more than six and a halftimes increase in degradation rate constants of COD.

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