Fish Swim Bladder-Derived Porous Carbon for Defluoridation at Potable Water pH
作者： Cecil K King’ondu , John Karuga , Yusufu A Jande , Hee T Kim
关键词: Environmental engineering 、 Energy-dispersive X-ray spectroscopy 、 Chemistry 、 Langmuir 、 Langmuir adsorption model 、 Adsorption 、 Nuclear chemistry 、 Portable water purification 、 Fluoride 、 Freundlich equation 、 Nitric acid
摘要: The levels of fluoride in various ground water sources East Africa are above the World Health Organization upper limit 1.5 mg/L. Research on diverse defluoridation technologies has proven that adsorption stands out as an affordable, efficient, and facile technology. Fish swim bladder-derived porous carbon (FBPC) activated by KOH surface oxidized nitric acid was successfully investigated adsorbent for at portable pH. FBPC characterized scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD) energy dispersive spectroscopy (EDS). Batch methods were used to study physiochemical parameters viz., initial concentration, temperature, adsorbate dosage, contact time Freundlich, Temkin, Langmuir Dubinin-Radushkevich isotherms plotted analyzed understand process. Bangham, Weber Morris, pseudo first second-order models elucidate kinetics adsorption. Optimal conditions removal found be: pH 6, dose 5.0 g/L 50 min. Flouride followed kinetic model isotherm best describes
sci-hub.st 参考文章(42)
Sabine Goldberg, Equations and Models Describing Adsorption Processes in Soils SSSA Book Series. pp. 489- 517 ,(2005) , 10.2136/SSSABOOKSER8.C10
S. Rajkumar, S. Murugesh, V. Sivasankar, A. Darchen, T.A.M. Msagati, T. Chaabane, Low-cost fluoride adsorbents prepared from a renewable biowaste: Syntheses, characterization and modeling studies Arabian Journal of Chemistry. ,vol. 12, pp. 3004- 3017 ,(2015) , 10.1016/J.ARABJC.2015.06.028
Bernard Thole, Ground Water Contamination with Fluoride and Potential Fluoride Removal Technologies for East and Southern Africa InTech. ,(2013) , 10.5772/54985
Anan Nitya, Yeun C. Wu, Water Defluoridation with Activated Alumina Journal of the Environmental Engineering Division. ,vol. 105, pp. 357- 367 ,(1979) , 10.1061/JEEGAV.0000895
Monika Jain, V.K. Garg, K. Kadirvelu, Chromium(VI) removal from aqueous system using Helianthus annuus (sunflower) stem waste Journal of Hazardous Materials. ,vol. 162, pp. 365- 372 ,(2009) , 10.1016/J.JHAZMAT.2008.05.048
Gamal O. El-Sayed, Mohamed M. Yehia, Amany A. Asaad, Assessment of activated carbon prepared from corncob by chemical activation with phosphoric acid Water Resources and Industry. ,vol. 7, pp. 66- 75 ,(2014) , 10.1016/J.WRI.2014.10.001
R. Sai Sathish, N. S. R. Raju, G. S. Raju, G. Nageswara Rao, K. Anil Kumar, C. Janardhana, Equilibrium and Kinetic Studies for Fluoride Adsorption from Water on Zirconium Impregnated Coconut Shell Carbon Separation Science and Technology. ,vol. 42, pp. 769- 788 ,(2007) , 10.1080/01496390601070067
G.G. Stavropoulos, P. Samaras, G.P. Sakellaropoulos, Effect of activated carbons modification on porosity, surface structure and phenol adsorption Journal of Hazardous Materials. ,vol. 151, pp. 414- 421 ,(2008) , 10.1016/J.JHAZMAT.2007.06.005
Sarita Sinha, Kavita Pandey, Dinesh Mohan, Kunwar P. Singh, Removal of Fluoride from Aqueous Solutions by Eichhornia crassipes Biomass and Its Carbonized Form Industrial & Engineering Chemistry Research. ,vol. 42, pp. 6911- 6918 ,(2003) , 10.1021/IE030544K
Pam H Y Li, Roderick L Bruce, Malcolm D Hobday, A pseudo first order rate model for the adsorption of an organic adsorbate in aqueous solution Journal of Chemical Technology & Biotechnology. ,vol. 74, pp. 55- 59 ,(1999) , 10.1002/(SICI)1097-4660(199901)74:1<55::AID-JCTB984>3.0.CO;2-D