Uncommon-earth Elements
High concentrations of ammonium sulfate (3500–4000 mg/L), ammonium (80–160 mg/L), sulfate and uncommon earths (20 mg/L) in the water, and elevated pH are reported.Reference Liu 79 Streams are polluted and surface vegetation destroyed . Ion-adsorbed clays are processed quickly, by leaching them with aqueous sodium chloride or ammonium...
