... used for four aspects,such as solid-liquid separation, sludge dewatering, liquid clarification and size grading . Application scopeIt' ... used for four aspects,such as solid liquid separation, sludge dewatering, liquid clarification and size grading .1.Solid ... barium carbonate, strontium sulfate, mica and other substances.2.Sludge dewatering is mainly applied: sewage treatment plants, power plants, ...