Full-Scale Demonstration of Somerset Sub325 Dewatering Centrifuge : Discussion of Testing Procedures and Results from Multiple Locations, Applications, and Industries

A 2022 paper by Somerset International entitled “Applying Ultra-Fine Coal Dewatering Technology to Refuse Tailings Disposal” discussed new applications for the Sub325® Fine Coal Recovery System, encouraged by the increased global scrutiny placed on tailings treatment and disposal. Most countries are now limiting the use of wet tailings dams (known as tailings storage facilities), requiring operating plants or companies to invest in total dewatering solutions with the capability of producing handleable solid cake and very low solids concentration effluents. Laboratory testing and small-scale demonstrations by Somerset International have led to the development of the patented Sub325® Tailings Dewatering System, which offers great potential for moving towards dry disposal. Somerset has recently embarked on a series of full-scale demonstrations at plants in the United States and North Africa. These demonstrations have proven successful in achieving their stated goals of effectively dewatering ultra-fine tailings, with resultant low moisture cakes and over 95% solids recovery. These demonstrations were performed under normal plant operating conditions with typical fluctuations in quality and flow. The proven ability to effectively dewater slurries with minus 325 mesh material is a vital piece of processing capability for the continued production of mining operations worldwide. Finding a low-cost, low-maintenance, high availability, continuous solution to dewater tailings is imperative for operators in both active and inactive mine facilities. The added benefit of valorization contributes valuable revenue to potentially offset the cost of moving from tailings disposal in ponds to dry disposal methods.Non UBCUnreviewedOthe