| The concentrationsofmetals Such asMn, Cd, Pb, Cu, and Zn in the watersample collected from 8 sites(S 1 — S 8 ) and the solution-ionsin the manganese sulphate waste residue deposited alongthe Huayuan Riverwere determined. TheresultsshowedthatthelevelsofMn and Cd wereoverthe Chinaenvironmental quality standardsforsurface water(GB 3838-2002). ThelevelsofMn, Cd, Cu and Znin theleachingoutliq uid ofmanganese sulphate waste residue wereoverthe Chinaintegrated wastewaterdischarge standard guideline (GB 5058.3-1996). A significantpositive correlation ofthe average concentration ofMn, Cd, Pb, Cu, and Zn wasobtained between the Huayuan Riverandtheleachingoutliquid ofmanganesesulphate wasteresidue ( r =0 . 957 , p 4 resi due. |
