Flocculation of heavy metals during mixing of freshwater with Caspian Sea water

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[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...

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Bibliographic Details
Published in:Environmental earth sciences 2008-02, Vol.53 (8), p.1811-1816
Main Authors: Karbassi, A. R, Nouri, J, Mehrdadi, N, Ayaz, G. O
Format: Article
Language:English
Subjects:
Brackish
Chemical analysis
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Estuary
Exact sciences and technology
External geophysics
Flocculation
Geochemistry
Geology
Heavy metals
Mineralogy
Oceans
Original Article
Physical and chemical properties of sea water
Physics of the oceans
Pollution, environment geology
saline water
Salinity
Seawater
Silicates
Statistical analysis
Studies
Water analysis
Water geochemistry
Zinc
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Summary: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[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[per thousand]. Statistical analysis indicates that the flocculation of Cu, Zn and Ni is governed by pH and total nitrogen.
ISSN:0943-0105
1866-6280
1432-0495
1866-6299
DOI:10.1007/s00254-007-0786-7