A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Selective Extraction of Trace Mercury and Cadmium from Drinking Water Sources
In this paper, a new alternative method, i.e., selective extraction by weakly basic anion exchange resin, has been developed for the removal of trace cadmium and mercury ions from drinking water sources. The mechanism of heavy metal removal is based on selective extraction as the results of LEWIS‐base–acid interactions. Transfer of trace mercury species from liquid to resin phase coincides well with the performance of film diffusion. The results demonstrated that the presence of chlorine has a negligible influence on the removal of mercury. However, humic acids can strongly bind mercury by the formation of complex compounds and therefore become the obstacle in the diffusion progress. At neutral or base pH, the resin material exhibits the favorable uptake of heavy metals. In filter experiments, the studied resin material offers favorable properties in the selective extraction of trace mercury and cadmium.
Selective Extraction of Trace Mercury and Cadmium from Drinking Water Sources
In this paper, a new alternative method, i.e., selective extraction by weakly basic anion exchange resin, has been developed for the removal of trace cadmium and mercury ions from drinking water sources. The mechanism of heavy metal removal is based on selective extraction as the results of LEWIS‐base–acid interactions. Transfer of trace mercury species from liquid to resin phase coincides well with the performance of film diffusion. The results demonstrated that the presence of chlorine has a negligible influence on the removal of mercury. However, humic acids can strongly bind mercury by the formation of complex compounds and therefore become the obstacle in the diffusion progress. At neutral or base pH, the resin material exhibits the favorable uptake of heavy metals. In filter experiments, the studied resin material offers favorable properties in the selective extraction of trace mercury and cadmium.
Selective Extraction of Trace Mercury and Cadmium from Drinking Water Sources
Zhao, Xuan (author) / Zhao, Gang (author) / Wang, Jianlong (author) / Yun, Guichun (author)
Water Environment Research ; 77 ; 212-218
2005-05-01
7 pages
Article (Journal)
Electronic Resource
English
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