Removal of cadmium from wastewaters by aragonite shells and the influence of other divalent cations
Removal of cadmium from wastewaters by aragonite shells and the influence of other divalent cations
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DOI：
10.1021/es060756j
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发表时间：
2007-01-01
影响因子：
11.4
通讯作者：
Prieto, Manuel
中科院分区：
文献类型：
--
作者：
Koehler, Stephan Jurgen;Cubillas, Pablo;Prieto, Manuel
The effect of dissolved Zn, Co, Pb, Mg, and Ca on the uptake of cadmium by biogenic aragonite was investigated. Experiments were performed in batch-reactors using metal-cadmium-bearing solutions and shell fragments with diameters in different ranges, the solid/liquid ratio being 10 grams per liter. Different initial concentrations of cadmium and metals (1.0-0.005 mM) were used. Uptake takes place via heterogeneous nucleation of metal-bearing crystallites onto the shell surfaces. Cadmium removal occurs by surface precipitation of otavite. Under the conditions used here, Co and Ca as well as Pb
