HEAVY METAL FLOCCULATION AT PIRBAZAR RIVER, BANADAR ANZALI, SOUTH WEST CASPIAN SEA

Message:
Abstract:
Heavy metal tlocculation process was studied in the year 2002 in order to determine the interaction of water in Pirbazar River with Caspian Sea water. The effects of various salinity concentrations of Caspian Sea water were studied on determined heavy metals including Fe, Zn, Pb, Cu, Cd and Cr level of Pirbazar River using APHA method of extraction and measurement. The results illustrated that the level of heavy metal concentration in Pirbazar Riverwere above standard limits and the extent of flocculation depended on both the salinity level and the heavy metal itself. The maximum flocculation for Cd and Cr were recorded at 7.65 ppt, for Zn and Fe at 9.35ppt while for Pb and Cd were at 2.55ppt salinity. The order of tlocculation with respect to percentage of original concentrations was found to be Zn > Fe > Cr> Cu > Cd> Pb.
Language:
Persian
Published:
Iranian Scientific Fisheries Journal, Volume:15 Issue: 4, 2007
Page:
79
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