Chemistry of the M (M=Fe, Ca, Ba)-Se-H(2)O Systems at 25 °C

The chemistry of the M (M=Fe, Ca, Ba)-Se-H(2)O systems at 25 °C is reviewed based on our previous papers. In this paper, the phase equilibria in the Fe(III)-Se(IV)-H(2)O, Ca-Se(IV,VI)-H(2)O and Ba-Se(IV,VI)-H(2)O systems at 25 °C are discussed. Then, the three-stage process for removal of selenium f...

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Detalles Bibliográficos
Autores principales: Nishimura, Tadahisa, Hata, Ryosuke, Hasegawa, Fumihiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International 2009
Materias:
Review
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6255396/
https://www.ncbi.nlm.nih.gov/pubmed/19783944
http://dx.doi.org/10.3390/molecules14093567
Descripción
Sumario:The chemistry of the M (M=Fe, Ca, Ba)-Se-H(2)O systems at 25 °C is reviewed based on our previous papers. In this paper, the phase equilibria in the Fe(III)-Se(IV)-H(2)O, Ca-Se(IV,VI)-H(2)O and Ba-Se(IV,VI)-H(2)O systems at 25 °C are discussed. Then, the three-stage process for removal of selenium from industrial waste water [Se(IV,VI) < 1,500 mg/L] containing sulfuric acid was introduced. This seems to be a promising process for selenium removal from acidic sulfate waste water containing high concentration levels of selenium to below 0.1 mg/L.

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