Flocculation of metal-rich colloids in a stream affected by mine drainage

被引：0

作者：

Zuddas, P ^{[1
]}

Podda, F ^{[1
]}

Lay, A ^{[1
]}

机构：

[1] Univ Cagliari, Dept Earth Sci, Cagliari, Italy

来源：

WATER-ROCK INTERACTION | 1998年

关键词：

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Flocculation of a white substance was observed in the Rio Naracauli (Sardinia, Italy) contaminated by mine tailings drainage. The flocculation occurs when an increase of pH is observed. The flocculated material takes up dissolved metals, especially Zn, from the water, possibly by adsorption onto hydrated silica colloids in an iron-poor, near-neutral environment. Chemical data of flocculated phase(s) show up to 520 g/Kg Zn, 106 g/Kg Si, 6 g/Kg Pb, 1 g/Kg Cd and respectively 215 and 80 mg/Kg Cu and Ni.

引用

页码：1009 / 1012

页数：4

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