Removal of cadmium ion from aqueous solution.
Removal of cadmium ion from aqueous solution.
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DOI：
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发表时间：
1976-12
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影响因子：
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通讯作者：
E. Chou;Y. Okamoto
中科院分区：
文献类型：
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作者：
E. Chou;Y. Okamoto
The removal of trace amounts of cadmium ion from aqueous solution by foam separation using chelating surfactants was investigated. The chelating surfactants studied were dodecylbenzyltriethylenetetramine and 4-dodecyldiethylenetriamine. Cadmium ion was found to be removed almost quantitatively from aqueous solution using these surfactants and for the 4-dodecyldiethylene-triamine, the cadmium could be removed even in the presence of a large concentration of other metallic ions, such as Ca, Mg, and Na, at pH 7 to 9. Various factors affecting the removal of cadmium, such as pH, rate of gas flow, and surfactant concentration were investigated. The surfactant was regenerated and recycled by the decomposition of the surfactant-cadmium complex with Na/sub 2/S. Cadmium ion was precipitated as CdS and the regenerated surfactant was recycled.
