Abstract:
:This study was conducted to evaluate the effect of equilibration time on adsorption of zinc [Zn(II)] and nickel [Ni(II)] on pure and modified chitosan beads. The initial adsorption of Zn(II) was high on molybdenum (Mo)-impregnated chitosan beads (MoCB) during the initial 60 min. However, after 240 min, Zn(II) adsorption occurred more on single super phosphate chitosan beads (SSPCB), followed by monocalcium phosphate chitosan beads (MCPCB), untreated pure chitosan beads (UCB), and MoCB. Similarly, Ni(II) adsorption was greatest on MoCB during the initial 60 min. At the conclusion of the experiment (at 240 min), the greatest adsorption was occurred on MCPCB, followed by MoCB, UCB, and SSPCB. Chemical sorption and intra-particle diffusion were probably the dominant processes responsible for Zn(II) and Ni(II) sorption onto chitosan beads. The results demonstrated that modified chitosan beads were effective in adsorbing Zn and Ni and hence, could be used for the removal of these toxic metals from soil.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Tripathi N,Choppala G,Singh RS,Srivastava P,Seshadri Bdoi
10.1007/s10661-016-5499-5subject
Has Abstractpub_date
2016-09-01 00:00:00pages
507issue
9eissn
0167-6369issn
1573-2959pii
10.1007/s10661-016-5499-5journal_volume
188pub_type
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