PMID- 28866961
OWN - NLM
STAT- MEDLINE
DCOM- 20190909
LR  - 20190909
IS  - 1479-487X (Electronic)
IS  - 0959-3330 (Linking)
VI  - 39
IP  - 24
DP  - 2018 Dec
TI  - Mathematical modelling of Pb(2+), Cu(2+), Ni(2+), Zn(2+), Cr(6+) and Cd(2+) ions 
      adsorption from a synthetic acid mine drainage onto chitosan derivative in a 
      packed bed column.
PG  - 3203-3220
LID - 10.1080/09593330.2017.1375027 [doi]
AB  - Studies on the adsorption of toxic metal ions in batch mode using modified 
      chitosan beads have been reported by several authors in literature; for 
      large-scale operations, packed bed column studies are performed to generate data 
      that are directly applicable in real wastewater treatment. In this work, the 
      application potential of chitosan derivative for the uptake of Pb(2+), Cu(2+), 
      Ni(2+), Zn(2+), Cr(6+), and Cd(2+) ions from aqueous solution in a packed bed 
      adsorption column was investigated. On this note, the adsorbent was characterized 
      by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and 
      Scanning electron microscope (SEM); the effect of breakthrough parameters such as 
      influent concentration, bed height, and feed flow rate was determined. The 
      experimental data were fitted to mathematical column models, namely Bed Depth 
      Service Time (BDST), Yoon-Nelson and Thomas model. The removal efficiency, 
      breakthrough and exhaustion time increased with an increase in bed height but 
      decreased with an increase in the flow rate and influent concentration. The 
      mathematical models applied in this study were successful in describing 
      experimental data. Desorption studies were performed with no loss in the mass of 
      the beads, and the breakthrough and exhaustion time were found to be the same on 
      reusing the beads. Abbreviations: Ch-b: chitosan coated bentonite; GXXB: grafted 
      cross-linked chitosan beads; MMBB: multi metal binding biosorbent; PFOLG: 
      panosized ferric oxide loaded glycidyl; MPSD: Marquardt's percent standard 
      deviation.
FAU - Igberase, E
AU  - Igberase E
AD  - a Department of Chemical Engineering , Vaal University of Technology , 
      Vanderbijlpark , South Africa.
FAU - Osifo, P
AU  - Osifo P
AD  - a Department of Chemical Engineering , Vaal University of Technology , 
      Vanderbijlpark , South Africa.
FAU - Ofomaja, A
AU  - Ofomaja A
AD  - a Department of Chemical Engineering , Vaal University of Technology , 
      Vanderbijlpark , South Africa.
LA  - eng
PT  - Journal Article
DEP - 20170919
PL  - England
TA  - Environ Technol
JT  - Environmental technology
JID - 9884939
RN  - 0 (Ions)
RN  - 0 (Water Pollutants, Chemical)
RN  - 00BH33GNGH (Cadmium)
RN  - 2P299V784P (Lead)
RN  - 9012-76-4 (Chitosan)
RN  - J41CSQ7QDS (Zinc)
SB  - IM
MH  - Adsorption
MH  - Cadmium
MH  - *Chitosan
MH  - Hydrogen-Ion Concentration
MH  - Ions
MH  - Lead
MH  - Models, Theoretical
MH  - *Water Pollutants, Chemical
MH  - Zinc
OTO - NOTNLM
OT  - Chitosan derivative
OT  - desorption
OT  - isotherm
OT  - kinetic parameters
OT  - metal ions adsorption
OT  - packed column
OT  - thermodynamic
EDAT- 2017/09/05 06:00
MHDA- 2019/09/10 06:00
CRDT- 2017/09/05 06:00
PHST- 2017/09/05 06:00 [pubmed]
PHST- 2019/09/10 06:00 [medline]
PHST- 2017/09/05 06:00 [entrez]
AID - 10.1080/09593330.2017.1375027 [doi]
PST - ppublish
SO  - Environ Technol. 2018 Dec;39(24):3203-3220. doi: 10.1080/09593330.2017.1375027. 
      Epub 2017 Sep 19.