title: Phosphorus recovery by mesoporous structure material from wastewater.
abstract: This study was designed to investigate the fundamental aspects of a possible removal of phosphorous from wastewater by using the mesoporous structure materials for wastewater reuse. The zirconium sulphate with mesoporous structure as a new type of ion exchangers was synthesised by hydrothermal reaction. From the results of X-ray diffraction and transmission electron microscope, it was discovered that the synthesised material had hexagonal mesoporous structure with a pore size of approximately 40-50A. Experimental results showed that the zirconium sulphate with mesoporous structure had very high sorption capacity for the phosphorus. The novel ion exchange occurred between PO4(3-) and SO4(2-), OH-. The amount of phosphate ions exchanged into the solid was as great as 3.4 mmol/g-ZS. Furthermore, it is possible to obtain a higher removal efficiency than other ion exchange media and adsorbents.
authors.affiliation: Water Environment & Remediation Center, Korea Institute of Science & Technology, Cheongryang, Seoul 130-650, Korea. yisanghyup@kist.re.kr
authors.forename: S H
authors.initials: SH
authors.lastname: Lee
authors.forename: B C
authors.initials: BC
authors.lastname: Lee
authors.forename: K W
authors.initials: KW
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Lee
authors.forename: Y S
authors.initials: YS
authors.lastname: Choi
authors.forename: K Y
authors.initials: KY
authors.lastname: Park
authors.forename: M
authors.initials: M
authors.lastname: Iwamoto
mesh_terms: D000327:Adsorption; D052918:Environmental Restoration and Remediation; D007474:Ion Exchange; D010758:Phosphorus / Q000302:isolation & purification*; D016062:Porosity; D013431:Sulfates / Q000737:chemistry*; D013499:Surface Properties; D014865:Waste Disposal, Fluid; D014867:Water / Q000737:chemistry; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction; D015040:Zirconium / Q000737:chemistry*
chemical_list: D013431:Sulfates; D014867:Water; D010758:Phosphorus; D015040:Zirconium