Research Article
Aug 1982
Activated Carbon: Sorption of DOC from Wastewater
Publication: Journal of the Environmental Engineering Division
Volume 108, Issue 4
Abstract
Activated carbons were prepared from a lignocellulosic material (prune pits) by pyrolysis to 900°C, and then activation in CO2 at 900°C for activation times ranging from 15 to 60 minutes. These were compared with each other and to Filtrasorb 400 and Aquanuchar A with regard to specific surface area (N2, 77K), pore volume distribution, and the rate and extent of adsorption of dissolved organic carbon (DOC) from filtered wastewater secondary effluent. It was found that the magnitudes of the above variables increased with increased time of activation, and that the magnitudes were greater for extensively activated fruit pits than for Filtrasorb 400 and Aquanuchar A. Moreover, the uptake of DOC onto these powdered activated carbons in batch reactors behaved according to a model based on linear equilibrium and rate controlled by pore diffusion. The apparent diffusivities estimated by this model were in the range of 1 × 10−¹0 to 3 × 10−¹0 m²/s, which conform to expected values.
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Published In
Journal of the Environmental Engineering Division
Volume 108 • Issue 4 • August 1982
Pages: 766 - 783
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Aug 1982
Published online: Feb 11, 2021
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Authors
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Frederick S. Cannon, M.ASCE
Engr., Brown and Caldwell, Consulting Engr., Inc., Pasadena, Calif. 91109
Paul V. Roberts, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Stanford Univ., Stanford, Calif. 94305
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.