Alternative technique for removal of phosphorus in wastewater using chemically surface-modified silica filter

作者：Kim DaeGun; Yoo InSang; Park ByungSeok; Lee YongHyun; Kim SaeHoon; Chang Duk; Sunwoo Young; Shin HyungSoo; Eo YangDam; Hong KiHo^*

来源：Journal of Industrial and Engineering Chemistry, 2012, 18(5): 1560-1563.

DOI：10.1016/j.jiec.2012.03.003

• Phosphorus removal
• Silica
• Silicon hydroxide
• Surface modification
• Ionic exchange

An innovative phosphorus removal filter made of silica granules was designed and evaluated for advanced wastewater treatment. The silica granules from natural mineral stones were formed into a porous body by sintering with addition of glass powder. The phosphorus was removed by the ionic exchange mechanism between OH- in Si(OH)(4) and PO43- in wastewater. The silica filter was very effective in removing phosphorus in wastewater by ion exchange. We found the possibility of a phosphorus removal filter with no sludge production characteristics of flocculation treatment techniques, and it seems to be quite meaningful as a new wastewater treatment.

• 出版日期2012-9-25