Adsorption of Aluminum Ion from Water on Alginate-Modified Polyurethane
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概要
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A dual purpose absorbent Alginate-modified polyurethane (APU) was prepared for removal of residual aluminum ion by adsorption from treated wastewater. The structure of APU was confirmed by Fourier transform infrared (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H-NMR) spectroscopy. Physical characterization was preformed according to the BET method. Surface analysis using SEM/EDS revealed that on average 0.57% aluminum by weight was adsorbed on APU. The adsorption isotherm of aluminum for APU was fitted well to Freundlich model. The analysis kinetic data suggests that adsorption of aluminum follows pseudo-first-order kinetics. The adsorption of aluminum on APU increased slightly from 25 to 35°C, indicating endothermic adsorption. The activation energy of adsorption, 8.16 kJ/mol, characterizes the dominant chemiosorption nature of this adsorption. The optimum pH for aluminum adsorption on APU (applied pH: 3-8) was found to be within the pH range of wastewater effluent. The adsorption capacity of APU for aluminum using real wastewater effluent was 3.8 mg Al/g, demonstrates the feasibility of application of APU in treatment of water of complex composition.
- 2011-07-01
著者
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AHMED Zubair
Department of Civil Engineering, King Abdul Aziz University
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MAGRAM Saleh
Department of Civil Engineering, King Abdul Aziz University
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DAOUD Maged
Department of Civil Engineering, King Abdul Aziz University
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PAENG Ki-Jung
Department of Chemistry, Yonsei University
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Ahn Kyu-hong
Center For Environmental Technology Research Korea Institute Of Science And Technology
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Kim Ki-pal
Center For Environmental Technology Research Korea Institute Of Science And Technology
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Ahmed Zubair
Center For Environmental Technology Research Korea Institute Of Science And Technology
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Paeng Ki-jung
Department Of Chemistry Yonsei University
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Paeng Ki-jung
Center For Environmental Technology Research Korea Institute Of Science And Technology
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Song Kyung-guen
Center For Environmental Technology Research Korea Institute Of Science And Technology
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Magram Saleh
Department Of Civil Engineering King Abdul Aziz University
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Kim Ki-pal
Center For Environmental Technology Research Energy And Environment Research Division Korea Institut
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Song Kyung-guen
Center For Environmental Technology Research Energy And Environment Research Division Korea Institut
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Ahn Kyu-hong
Center For Environmental Technology Research Energy And Environment Research Division Korea Institut
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Daoud Maged
Department Of Civil Engineering King Abdul Aziz University
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Ahmed Zubair
Department Of Civil Engineering King Abdul Aziz University
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