Effects of several harmful anions on the removal of aqueous phosphate by boehmite

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概要

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• Boehmite (Al(OH)O) was employed for the removal of aqueous phosphate in the presence of harmful anions such as carbonate, sulphate, nitrate, nitrite, chloride and fluoride at 298K. Although boehmite was shown to remove a certain simultaneous removal of phosphate together with fluoride, no influence of the presence of carbonate, sulphate, nitrate, nitrite and chloride on the removal of phosphate by boehmite was observed. In the present study, two kinds of boehmite, a commercially available form and boehmite prepared using a sol-gel technique, were employed for the simultaneous removal of phosphate and fluoride, and it was found that the latter form was superior for such removal. Solid-state ^<31>P MAS NMR analyses revealed that, in the presence of fluoride, phosphate was removed onto boehmite as different types of phosphate species, depending on the solution pH and the source of boehmite.

• 社団法人日本セラミックス協会の論文
• 2008-09-01

著者

• Nakagawa Keizo

  Department Of Advanced Materials Institute Of Technology And Science The University Of Tokushima

• Nakagawa Keizo

  Department Of Chemical Engineering Graduate School Of Engineering Kyushu University

• Sugiyama Shigeru

  Department of Advanced Materials, Institute of Technology and Science, The University of Tokushima

• Sotowa Ken-Ichiro

  Department of Advanced Materials, Institute of Technology and Science, The University of Tokushima

• INABA Yuichi

  Department of Chemical Science and Technology, The University of Tokushima

• MANABE Tomoyuki

  Department of Chemical Science and Technology, The University of Tokushima

• Sugiyama Shigeru

  Department Of Advanced Materials Institute Of Technology And Science The University Of Tokushima

• Inaba Yuichi

  Department Of Chemical Science And Technology The University Of Tokushima

• Sotowa Ken-ichiro

  Department Of Advanced Materials Institute Of Technology And Science The University Of Tokushima

• Manabe Tomoyuki

  Department Of Chemical Science And Technology The University Of Tokushima

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