PMID- 19443115
OWN - NLM
STAT- MEDLINE
DCOM- 20090911
LR  - 20131121
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 168
IP  - 2-3
DP  - 2009 Sep 15
TI  - Biosorption equilibria of binary Cd(II) and Ni(II) systems onto Saccharomyces 
      cerevisiae and Ralstonia eutropha cells: application of response surface 
      methodology.
PG  - 1437-48
LID - 10.1016/j.jhazmat.2009.03.041 [doi]
AB  - Present study investigated the biosorption of Cd(II) and Ni(II) from aqueous 
      solution onto Saccharomyces cerevisiae and Ralstonia eutropha non-living biomass. 
      Biomass inactivated by heat and pretreated by ethanol was used in determination 
      of optimum conditions. The important process parameters, such as initial solution 
      pH (2-8), initial Ni(II) concentration (11-42 mg/l), initial Cd(II) concentration 
      (11-42 mg/l), and biomass dosage (0.2-4.7 g/l) were optimized using design of 
      experiments (DOE). A central composite design (CCD) under response surface 
      methodology (RSM) was applied to evaluate and optimize the efficiency of removing 
      each adsorbent. Moreover, the two responses were simultaneously studied by using 
      a numerical optimization methodology. The optimum removal efficiency of Cd(II) 
      and Ni(II) onto S. cerevisiae was determined as 43.4 and 65.5% at 7.1 initial 
      solution pH, 4.07 g/l biomass dosage, 16 mg/l initial Ni(II) concentration and 37 
      mg/l initial Cd(II) concentration. The optimum removal efficiency of Cd(II) and 
      Ni(II) onto R. eutropha was ascertained as 52.7 and 50.1% at 5.0 initial solution 
      pH, 2.32 g/l biomass dosage, 28 mg/l initial Ni(II) concentration and 37 mg/l 
      initial Cd(II) concentration. The present analysis suggests that the predicted 
      values are in good agreement with experimental data. The characteristics of the 
      possible interactions between biosorbents and metal ions were also evaluated by 
      scanning electron microscope (SEM) and Fourier transform infrared (FT-IR) 
      spectroscopy analysis.
FAU - Fereidouni, Mohammad
AU  - Fereidouni M
AD  - Department of Environmental Science, Faculty of Natural Resources & Marine 
      Sciences, Tarbiat Modares University, Noor, Iran.
FAU - Daneshi, Ali
AU  - Daneshi A
FAU - Younesi, Habibollah
AU  - Younesi H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090318
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 00BH33GNGH (Cadmium)
RN  - 7OV03QG267 (Nickel)
SB  - IM
MH  - Cadmium/*metabolism
MH  - Cupriavidus necator/*metabolism
MH  - Microscopy, Electron, Scanning
MH  - Nickel/*metabolism
MH  - Saccharomyces cerevisiae/*metabolism
MH  - Spectroscopy, Fourier Transform Infrared
EDAT- 2009/05/16 09:00
MHDA- 2009/09/12 06:00
CRDT- 2009/05/16 09:00
PHST- 2008/09/09 00:00 [received]
PHST- 2009/03/09 00:00 [revised]
PHST- 2009/03/10 00:00 [accepted]
PHST- 2009/05/16 09:00 [entrez]
PHST- 2009/05/16 09:00 [pubmed]
PHST- 2009/09/12 06:00 [medline]
AID - S0304-3894(09)00428-2 [pii]
AID - 10.1016/j.jhazmat.2009.03.041 [doi]
PST - ppublish
SO  - J Hazard Mater. 2009 Sep 15;168(2-3):1437-48. doi: 10.1016/j.jhazmat.2009.03.041. 
      Epub 2009 Mar 18.