Adsorptive Bubble Separation of Dinitrophenol |
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Authors: | Ank-Kung Shing Shang-Da Huang |
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Abstract: | Dinitrophenol was removed from aqueous solution by various adsorptive bubble separation techniques. Foam fractionation of dinitrophenol with hexadecyltrimethylammonium bromide(HTA) was most effective with over 99% removal in 15 min. The addition of a surfactant in greater than stoichiometric amounts was required for effective separation. Solvent sublation of the dinitrophenol-HTA complex was also effective. The separation efficiency of solvent sublation of dinitrophenol-HTA was similar to that of foam fractionation. The separation by solvent sublation of dinitrophenol without adding any surfactant was very poor. Adsorbing colloid flotation with Fe(OH)3 was not effective in removing dinitrophenol from aqueous solution. |
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Keywords: | Adsorptive bubble separation solvent sublation foam fractionation adsorbing colloid flotation dinitrophenol |
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