title: Nitrate removal from aqueous solution by Arundo donax L. reed based anion exchange resin.
abstract: Arundo donax L. reed based anion exchange resin (ALR-AE resin) was prepared by the amination reaction for the adsorption of nitrate from aqueous solution. The physicochemical properties of the ALR-AE resin as well as its adsorption properties for nitrate were measured. Results indicated that large amounts of amine groups have been grafted onto the structure of the resin. The FTIR and Raman spectra validated the ion exchange mechanism for nitrate adsorption by ALR-AE resin. The adsorption data showed an exothermic nature for the adsorption of nitrate by ALR-AE resin, and the equilibrium time for the adsorption process was about 10 min. The maximum adsorption capacity (Q(max)) for nitrate was 44.61 mg/g. The saturated adsorption capacity of ALR-AE resin in column was about 38.9 mg/g, which accounted for about 87.2% of the resin's Q(max). The preferential adsorption capacity of the ALR-AE resin followed the order as: SO(4)(2-)>NO(3)(-) ≈ PO(4)(3-)>NO(2)(-). In addition, the utilization of the resin in actual water samples indicated that the ALR-AE resin could be used for the treatment of many ionic polluted wastewaters.
authors.affiliation: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Xing
authors.initials: X
authors.lastname: Xu
authors.forename: Baoyu
authors.initials: B
authors.lastname: Gao
authors.forename: Yaqing
authors.initials: Y
authors.lastname: Zhao
authors.forename: Suhong
authors.initials: S
authors.lastname: Chen
authors.forename: Xin
authors.initials: X
authors.lastname: Tan
authors.forename: Qinyan
authors.initials: Q
authors.lastname: Yue
authors.forename: Jianya
authors.initials: J
authors.lastname: Lin
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000327:Adsorption; D000837:Anion Exchange Resins; D009566:Nitrates / Q000302:isolation & purification*; D006109:Poaceae / Q000378:metabolism*; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D014867:Water
chemical_list: D000837:Anion Exchange Resins; D009566:Nitrates; D012996:Solutions; D014867:Water