FN Archimer Export Format
PT J
TI Sorption of Copper(II) and Silver(I) by Four Bacterial Exopolysaccharides
BT 
AF DESCHATRE, Marine
   GHILLEBAERT, F.
   GUEZENNEC, Jean
   SIMON-COLIN, Christelle
AS 1:1,2;2:3;3:4;4:2;
FF 1:;2:;3:PDG-RBE-ADM1;4:PDG-REM-EEP-LMEE;
C1 Mexel Ind SAS, F-60410 Verberie, France.
   Inst Francais Rech Exploitat Mer, Ctr Brest, RBM BMM, F-29280 Plouzane, France.
   Ecotox, F-62380 Affringues, France.
   AiMB Advices Marine Biotechnol, F-29280 Plouzane, France.
C2 MEXEL IND SAS, FRANCE
   IFREMER, FRANCE
   ECOTOX, FRANCE
   AIMB ADVICES MARINE BIOTECHNOL, FRANCE
SI BREST
SE PDG-RBE-BRM-BMM
   PDG-RBE-ADM1
   PDG-REM-EEP-LMEE
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 1.687
TC 28
UR https://archimer.ifremer.fr/doc/00171/28222/27464.pdf
LA English
DT Article
DE ;Sorption;Bacterial exopolysaccharide;Copper and silver removal;Bioremediation
AB Metal remediation was studied by the sorption of analytical grade copper Cu(II) and silver Ag(I) by four exopolysaccharides (EPS) produced by marine bacteria. Colorimetric analysis showed that these EPS were composed of neutral sugars, uronic acids (>20 %), acetate, and sulfate (29 %). Metal sorption experiments were conducted in batch process. Results showed that the maximum sorption capacities calculated according to Langmuir model were 400 mg g−1 EPS (6.29 mmol g−1) and 333 mg g−1 EPS (3.09 mmol g−1) for Cu(II) and Ag(I), respectively. Optimum pH values of Ag(I) sorption were determined as 5.7. Experiment results also demonstrated the influence of initial silver concentration and EPS concentrations. Microanalyzing coupled with scanning electron microscopy demonstrated the presence of metal and morphological changes of the EPS by the sorption of metallic cations. The Fourier transform infrared spectroscopy analysis indicated possible functional groups (e.g., carboxyl, hydroxyl, and sulfate) of EPS involved in the metal sorption processes. These results showed that EPS from marine bacteria are very promising for copper and silver remediation. Further development in dynamic and continuous process at the industrial scale will be established next.
PY 2013
PD NOV
SO Applied Biochemistry And Biotechnology
SN 0273-2289
PU Humana Press Inc
VL 171
IS 6
UT 000326374700002
BP 1313
EP 1327
DI 10.1007/s12010-013-0343-7
ID 28222
ER

EF