Phenolic Wastewater Treatment Using Activated Carbon in a Three Phase Fluidized-Bed Reactor

  • Pratarn Wongsarivej National Nanotechnology Center, National Science and Technology Development Agency
  • Pornsiri Tongprem National Nanotechnology Center, National Science and Technology Development Agency

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Abstract

Phenolic wastewater treatment was investigated using activated carbon in a lab scale three phase fluidized-bed reactor. The reactor with effective volume of 272 ml, 300 mm in height and 40 mm in diameter was made from transparent acrylic that allowed to observe the phenomena occurring inside. Phenol 10 mg/l and air were used as representative agents that were continuously fed to the reactor at a constant flow rate of 1 and 2 l/min with co-current and up-flow, respectively. Comparison of the phenolic adsorption under five different conditions: (a) fresh Acs, (b) 1st reused Acs, (c) fresh Fe/Acs, (d) 1st reused Fe/Acs, and (e) 2nd reused Fe/Acs, have been carried out. The phenolic wastewater was re-circulated through the reactor and its concentration was measured with respect to time. The experimental adsorption results revealed that both fresh Acs and Fe/Acs gave the better results than reused Acs and reused Fe/Acs, respectively. The adsorption in all cases of Acs and Fe/Acs would follow Pseudo-second order kinetic.

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Author Biographies
Pratarn Wongsarivej

National Nanotechnology Center, Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand

Pornsiri Tongprem

National Nanotechnology Center, Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand

Published
Vol 13 No 3, Dec 15, 2009
How to Cite
P. Wongsarivej and P. Tongprem, “Phenolic Wastewater Treatment Using Activated Carbon in a Three Phase Fluidized-Bed Reactor”, Eng. J., vol. 13, no. 3, pp. 57-65, Dec. 2009.

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