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Frontiers of Environmental Science & Engineering

ISSN 2095-2201

ISSN 2095-221X(Online)

CN 10-1013/X

Postal Subscription Code 80-973

2018 Impact Factor: 3.883

Front.Environ.Sci.Eng.    2007, Vol. 1 Issue (3) : 368-373    https://doi.org/10.1007/s11783-007-0063-8
Separating method and dynamic processes of Nano-Al13
GAO Baoyu1, YUE Qinyan1, WANG Xiaona1, CHU Yongbao2, KONG Chunyan3
1.School of Environmental Science and Engineering, Shandong University, Jinan 250100, China; 2.College of Material and Environment, Qingdao University of Science and Technology, Qingdao 266042, China; 3.Department of Chemistry, Dezhou University, Dezhou 253023, China;
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Abstract In order to investigate the characteristics of pure Nano-Al13, Nano-Al13 was separated and purified from a series of poly-aluminum chloride (PAC) solutions which had the same Al13 percentage but different total Al concentrations, by using column chromatography, ethanol-acetone resolving and SO2-4/Ba2+ displacement. The Al13 species yield was characterized by Al-ferron timed complexation spectrophotometry and 27Al-NMR (nuclear magnetic resonance). The coagulation efficiency of Nano-Al13, PAC and AlCl3 in synthetic water was also investigated by Jar tests. The dynamic process and aggregation state of kaolin suspensions coagulating with Nano-Al13, PAC and AlCl3 were similarly investigated using a photometric dispersion analyzer 2000 (PDA2000). The experimental results indicated that the ethanol-acetone resolving method was simple and could separate the PAC solution at different concentrations, while column chromatography could separate PAC solutions at low concentrations. The SO42-/Ba2+ displacement method could separate PAC solutions at high concentrations. However, extra inorganic cation and anion could be added in the solution during separation. The coagulation efficiency and dynamic experimental results showed that Nano-Al13 with high positive-charged species was effective in removing turbidity and color. The dynamic process results showed that Nano-Al13 also had the best recovery capability after shearing compared with PAC and AlCl3 because the Nano-Al13 conformation is more effective in charge neutralization.
Issue Date: 05 September 2007
 Cite this article:   
CHU Yongbao,GAO Baoyu,YUE Qinyan, et al. Separating method and dynamic processes of Nano-Al13[J]. Front.Environ.Sci.Eng., 2007, 1(3): 368-373.
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https://academic.hep.com.cn/fese/EN/10.1007/s11783-007-0063-8
https://academic.hep.com.cn/fese/EN/Y2007/V1/I3/368
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