Kinetics of Sorption and Desorption of Copper(II) and Lead(II) on Activated Carbon

The rate of sorption of copper(II) and lead(II) onto activated carbons Nuchar SA and Filtrasorb 400 was observed to occur rapidly at the outset, followed by a slow and prolonged sorption. This indicates that previous sorption studies conducted for short equilibration periods likely underestimated th...

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Bibliographic Details
Published in:Water environment research 1993-05, Vol.65 (3), p.238-244
Main Authors: Wilczak, Andrzej, Keinath, Thomas M.
Format: Article
Language:English
Subjects:
Activated carbon
Applied sciences
Bottles
Copper
Desorption
Exact sciences and technology
Fall lines
General purification processes
Heavy metals
Kinetics
Lead
Pollution
Research Papers
Sorption
Wastewaters
Water treatment and pollution
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Summary:The rate of sorption of copper(II) and lead(II) onto activated carbons Nuchar SA and Filtrasorb 400 was observed to occur rapidly at the outset, followed by a slow and prolonged sorption. This indicates that previous sorption studies conducted for short equilibration periods likely underestimated the actual capacity of activated carbon for heavy metals. Although copper and lead ions desorbed from the activated carbon surface rapidly, the rate of desorption of lead was slower, prevailing over several days. Sorption of copper and lead ions on Nuchar SA was found to be fully reversible.
ISSN:1061-4303
1554-7531
DOI:10.2175/WER.65.3.7