Effect of LEO (Lycium Essential Oils) as Green Inhibitors of Calcium Carbonate Scale on Nanoparticles-Doped Ultrafiltration Membrane (UFM) and Water Treatment.

Considering the growing environmental concerns about the discharge of saline water coming from desalination systems, the present work is of significant interest. The effect of LEO (Lycium Essential Oils) as green inhibitors of calcium carbonate scale has been investigated in this study. We used conductivity measurements, nanoparticles-doped membranes technologies, electrochemical impedance spectroscopy (EIS), and chronoamperometry techniques. The calcium carbonate scale was deposited from the brine solution by cathodic polarization of the steel surface. The observed anti-scaling property can be partly explained by the presence of plant antioxidants. Antioxidants retarded calcium carbonate precipitation via the formation of a complex with the calcium cations. Without LEO, adherent film formed over the steel surface, under cathodic polarization, by the deposition of the calcium complex. [ABSTRACT FROM AUTHOR]