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Efficient nitrate adsorption from water by aluminum powder. Kinetic, equilibrium and influence of anion competition studies

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The feasibility of aluminum powder (with particle size of 75–150 μm) for nitrate removal from aqueous solutions has been investigated. Adsorption was examined in function of initial nitrate concentration, contact time, pH and influence of other interfering anions. Maximum nitrate removal occurred at equilibrium pH of 10. The kinetics of adsorption of nitrate ions was discussed based on three kinetic models, namely: the pseudo-first order, the pseudo-second order and the intraparticle diffusion model. The experimental data fitted the pseudo-second order kinetic model very well; the rate constant was 4x10–4 g/ (mg·min) at the concentration of NO3- of 100 mg/dm3. The adsorption data followed both Langmuir (R2 = 0.808) and Freundlich (R2 = 0.865) isotherms probably due to the real heterogeneous nature of the surface sites involved in the nitrate uptake. The maximum sorption capacity of aluminum powder for nitrate adsorption was found to be ca. 45.2 mg/g at room temperature. The results indicate that aluminum powder is an interesting alternative for nitrate removal from the water.
Rocznik
Strony
19--31
Opis fizyczny
Bibliogr. 31 poz., tab., rys.
Twórcy
autor
  • Student Research Committee, Department of Environmental Health Engineering, Shahid Beheshti University of Medical Sciences, Tehran, Iran
autor
  • Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran
autor
  • Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, FI-50130 Mikkeli, Finland
autor
  • Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
  • Department of Environmental Health Engineering, School of Health, Qom University of Medical Sciences, Qom, Iran
  • M. Sc. Environmental Health Engineering, Exploration Directorate, NIOC, Tehran, Iran
Bibliografia
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  • [24] OMIDVAR BORNA M., PIRSAHEB M., VOSOUGHI NIRI M., KHOSRAVI MASHIZIE R., KAKAVANDI B., ZARE M.R., ASADI A., Batch and column studies for the adsorption of chromium(VI) on low-cost Hibiscus Cannabinus kenaf, a green adsorbent, J. Taiwan Institute of Chemical Engineers, 2016, 68, 80.
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  • [26] MIZUTA K., MATSUMOTO T., HATATE Y., NISHIHARA K., NAKANISHI T., Removal of nitrate nitrogen from drinking water using bamboo powder charcoal, Biores. Technol., 2004, 95 (3), 255.
  • [27] GOLESTANIFAR H., ASADI A., ALINEZHAD A., HAYBATI B., VOSOUGHI M., Isotherm and kinetic studies on the adsorption of nitrate onto nanoalumina and iron-modified pumice, Desal. Water Treat., 2016. 57 (12), 5480.
  • [28] MISHRA P.C., PATEL R.K., Use of agricultural waste for the removal of nitrate-nitrogen from aqueous medium, J. Environ. Manage., 2009, 90 (1), 519.
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  • [31] TANG Y., GUAN X., WANG J., GAO N., MCPHAIL M.R., CHUSUEI C.C., Fluoride adsorption onto granular ferric hydroxide: Effects of ionic strength, pH, surface loading, and major co-existing anions, J. Hazard. Mater., 2009, 171 (1–3), 774.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-cd751c1d-454a-4c98-9c6e-e19de060e3cf
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