Flocculation of heavy metals during mixing of freshwater with Caspian Sea water
| Autor: | Nasser Mehrdadi, Abdulreza Karbassi, Jafar Nouri, G. O. Ayaz |
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| Rok vydání: | 2007 |
| Předmět: |
Flocculation
General Engineering chemistry.chemical_element Mineralogy Manganese Zinc Saline water Copper Nitrogen Salinity chemistry Environmental chemistry Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Environmental Chemistry Seawater Geology General Environmental Science Water Science and Technology |
| Zdroj: | Environmental Geology. 53:1811-1816 |
| ISSN: | 1432-0495 0943-0105 |
| DOI: | 10.1007/s00254-007-0786-7 |
| Popis: | 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‰ 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‰. Statistical analysis indicates that the flocculation of Cu, Zn and Ni is governed by pH and total nitrogen. |
| Databáze: | OpenAIRE |
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