Magnetic Separation an overview | ScienceDirect Topics
Magnetic filtration has been applied in place of lime treatment by Feng and coworkers (2000).Ultrafine magnetic particles are used as magnetic seeds. At a dosage of g/L magnetite, all fine precipitate flocs can be rendered strongly magnetic. The mine water is treated with hydrogen peroxide (to oxidize ferrous iron and manganese), followed by the addition of lime and magnetite to raise the