TY - JOUR
T1 - Immobilization of Acidithiobacillus ferrooxidans on sulfonated microporous poly(styrene-divinylbenzene) copolymer with granulated activated carbon and its use in bio-oxidation of ferrous iron
AU - Koseoglu-Imer, Derya Yuksel
AU - Keskinler, Bulent
PY - 2013/1/1
Y1 - 2013/1/1
N2 - The immobilization efficiencies of Acidithiobacillus ferrooxidans cells on different immobilization matrices were investigated for biooxidation of ferrous iron (Fe 2 +) to ferric iron (Fe 3 +). Six different matrices were used such as the polyurethane foam (PUF), granular activated carbon (GAC), raw poly(styrene-divinylbenzene) copolymer (rawSDVB), raw poly(styrene-divinylbenzene) copolymer with granular activated carbon (rawSDVB-GAC), sulfonated poly(styrene-divinylbenzene) copolymer (sulfSDVB) and sulfonated poly(styrene-divinylbenzene) copolymer with granular activated carbon (sulfSDVB-GAC). The sulfSDVB-GAC polymer showed the best performance for Fe 2 + biooxidation. It was used at packed-bed bioreactor and the kinetic parameters were obtained. The highest Fe 2 + biooxidation rate (R) was found to be 4.02 g/L h at the true dilution rate (D t) of 2.47 1/h and hydraulic retention time (τ) of 0.4 h. The sulfSDVB-GAC polymer was used for the first time as immobilization material for A. ferrooxidans for Fe 2 + biooxidation.
AB - The immobilization efficiencies of Acidithiobacillus ferrooxidans cells on different immobilization matrices were investigated for biooxidation of ferrous iron (Fe 2 +) to ferric iron (Fe 3 +). Six different matrices were used such as the polyurethane foam (PUF), granular activated carbon (GAC), raw poly(styrene-divinylbenzene) copolymer (rawSDVB), raw poly(styrene-divinylbenzene) copolymer with granular activated carbon (rawSDVB-GAC), sulfonated poly(styrene-divinylbenzene) copolymer (sulfSDVB) and sulfonated poly(styrene-divinylbenzene) copolymer with granular activated carbon (sulfSDVB-GAC). The sulfSDVB-GAC polymer showed the best performance for Fe 2 + biooxidation. It was used at packed-bed bioreactor and the kinetic parameters were obtained. The highest Fe 2 + biooxidation rate (R) was found to be 4.02 g/L h at the true dilution rate (D t) of 2.47 1/h and hydraulic retention time (τ) of 0.4 h. The sulfSDVB-GAC polymer was used for the first time as immobilization material for A. ferrooxidans for Fe 2 + biooxidation.
KW - Acidithiobacillus ferrooxidans
KW - Cell immobilization
KW - Ferrous iron biooxidation
KW - Poly(styrene-divinylbenzene) copolymer
KW - Sulfonation
UR - http://www.scopus.com/inward/record.url?scp=84869082022&partnerID=8YFLogxK
U2 - 10.1016/j.msec.2012.08.003
DO - 10.1016/j.msec.2012.08.003
M3 - Article
C2 - 25428041
AN - SCOPUS:84869082022
SN - 0928-4931
VL - 33
SP - 53
EP - 58
JO - Materials Science and Engineering C
JF - Materials Science and Engineering C
IS - 1
ER -