期刊
ENVIRONMENTAL GEOLOGY
卷 53, 期 8, 页码 1811-1816出版社
SPRINGER
DOI: 10.1007/s00254-007-0786-7
关键词
flocculation; heavy metals; saline water; estuary; Caspian Sea
Flocculation of colloidal size fraction for Cu, Zn, Pb, Ni and Mn was investigated on a series of mixtures with water salinities ranging from 1.5 to 9.5 parts per thousand during mixing of Haraz River with the Caspian Sea water. The flocculation trend of Zn (85.5%) > Mn (55.2%) > Cu (39.6%) > Pb (33.7%) > Ni (11.3%) indicates that Cu, Zn, Pb and Mn have non-conservative behavior and Ni has relatively conservative behavior during estuarine mixing. Highest flocculation of heavy metals occurs between salinities of 1.5 and 4.5 parts per thousand. Statistical analysis indicates that the flocculation of Cu, Zn and Ni is governed by pH and total nitrogen.
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