Historically, poor recovery rates in mining have left significant amounts of recoverable material in tailings. This can be extracted with dredges. Blogs posted by Ellicott Dredges, which sells dredgers for sand mining, harbor maintenance, river and channel dredging, and environmental clean-ups.
Furthermore, the project scope includes water supply to the project as a whole; water supply to each of the reclamation sites; hydraulic mining infrastructure; a new carbon in leach (CIL) gold recovery process plant; pump and piping systems to transfer the hydraulically mined tailings slurry to the new CIL process plant; residue disposal pumps ...