Premium
Kinetics of sorption and desorption of copper(II) and lead (II) on activated carbon
Author(s) -
Wilczak Andrzej,
Keinath Thomas M.
Publication year - 1993
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/wer.65.3.7
Subject(s) - sorption , copper , desorption , activated carbon , chemistry , kinetics , carbon fibers , inorganic chemistry , ion , lead (geology) , adsorption , environmental chemistry , organic chemistry , materials science , geology , physics , quantum mechanics , geomorphology , composite number , composite material
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.