Manganese

Heavy metals such as cadmium, chromium and manganese are toxic priority pollutants that commonly interfere with the beneficial use of wastewater for irrigation and industrial applications. The sorption of cadmium, chromium and manganese from aqueous solutions onto natural sepiolite has been studied.

In the frame of a global process of marginal ores treatment and of the treatment of solid residues containing heavy metals, we can associate the techniques of static solid–liquid extraction to the techniques of static liquid– liquid extraction. The static solid–liquid extraction or leaching is now w