Proceedings of the Korean Society of Soil and Groundwater Environment Conference (한국지하수토양환경학회:학술대회논문집)
- 2003.04a
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- Pages.447-450
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- 2003
Simultaneous removal of nitrate and phosphate by micellar-enhanced ultrafiltration(MEUF) using PENTANOX 4X
Abstract
The feasibility of PENTANOX 4X for the simultaneous removal of nitrate and phosphate was investigated using micellar-enhanced ultrafiltration. Because PENTANOX 4X has cationic property at low pH, anionic contaminants can be bound to PENTANOX 4X micelle by electrostatic interaction. At pH 3, 90% of nitrate and 72% of phosphate were removed by 27 mM of PENTANOX 4X, which were equivalent to 20 mM of CPC. PENTANOX 4X of > 80 % was rejected by ultrafiltration membrane and did not make any counter-ion such as chloride for CPC which might cause second-pollution.
Keywords
- Micellar-enhanced ultrafiltration(MEUF);
- PENTANOX 4X;
- amino oxide;
- nitrate;
- phosphate;
- ultrafiltration