@article{
 title = {Removal of lead from aqueous solutions by natural clinoptilolite: equilibrium and kinetic studies},
 type = {article},
 year = {2004},
 identifiers = {[object Object]},
 pages = {189-200},
 volume = {39},
 id = {1578ae27-b956-3800-b61a-9697b1ad2f6d},
 created = {2016-04-28T08:46:16.000Z},
 file_attached = {false},
 profile_id = {dce7c6b2-57cf-350f-b364-3e8ed99bb344},
 group_id = {bfd80d76-e42d-36f1-b5b9-353e1a47eb95},
 last_modified = {2016-04-28T08:46:16.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {ISI:000224049900006},
 source_type = {article},
 abstract = {In this study, the removal of lead ions from aqueous solution using
natural clinoptilolite under different experimental conditions was
investigated. The effects of the initial metal concentration, agitation
speed, temperature and pH on the removal efficiency of lead were
studied. Langmuir and Freundlich isotherm constants and correlation
coefficients for the present system at different conditions were
calculated and compared. The equilibrium process was described well by
the Langmuir isotherm model with the maximum sorption capacity of 166
mg/g of lead on clinoptilolite.
The sorption kinetics were tested for the first order reaction,
intra-particle diffusion, pseudo-first order, and pseudo-second order
reaction at different experimental conditions. The rate constants of
sorption for all these kinetic models were calculated. Good correlation
coefficients were obtained for the pseudo-second order kinetic model
showing that lead uptake process followed the pseudo-second order rate
expression. (C) 2003 Elsevier B.V. All rights reserved.},
 bibtype = {article},
 author = {Bektas, N and Kara, S},
 journal = {SEPARATION AND PURIFICATION TECHNOLOGY},
 number = {3}
}

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