TY - JOUR
T1 - Ruthenium recovery from acetic acid industrial effluent using chemically stable and high-performance polyethylenimine-coated polysulfone-Escherichia coli biomass composite fibers
AU - Kim, Sok
AU - Choi, Yoon E.
AU - Yun, Yeoung Sang
N1 - Funding Information:
This work was supported by the Korean Government through NRF ( 2014R1A2A1A09007378 ) and Korea University grants.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/8/5
Y1 - 2016/8/5
N2 - Recovery of precious metal ions from waste effluents is of high concern. In general, ruthenium (Ru) is used in the Cativa process as promoter for carbonylation catalyst and discharged into acetic acid effluent. In the present work, we have designed and developed polyethylenimine-coated polysulfone-bacterial biomass composite fiber (PEI-PSBF) to recover Ru from industrial effluent. The sorbent was manufactured by electrostatic attachment of polyethylenimine (PEI) to the surface of polysulfone-biomass composite fiber (PSBF), which was prepared through spinning of the mixture of polysulfone and Escherichia coli biomass in N,N-dimethylformamide (DMF) into water. Developed PEI-PSBF was highly stable in the acetic acid effluent. The maximum sorption capacity of the developed sorbent PEI-PSBF, coated with PEI (with M.W. of 75,000), was 121.28 ± 13.15 mg/g, which was much higher than those of ion exchange resins, TP214, Amberjet 4200, and M500. The PEI-PSBF could be successfully applied in the flow-through column system, showing 120 beds of breakthrough volume.
AB - Recovery of precious metal ions from waste effluents is of high concern. In general, ruthenium (Ru) is used in the Cativa process as promoter for carbonylation catalyst and discharged into acetic acid effluent. In the present work, we have designed and developed polyethylenimine-coated polysulfone-bacterial biomass composite fiber (PEI-PSBF) to recover Ru from industrial effluent. The sorbent was manufactured by electrostatic attachment of polyethylenimine (PEI) to the surface of polysulfone-biomass composite fiber (PSBF), which was prepared through spinning of the mixture of polysulfone and Escherichia coli biomass in N,N-dimethylformamide (DMF) into water. Developed PEI-PSBF was highly stable in the acetic acid effluent. The maximum sorption capacity of the developed sorbent PEI-PSBF, coated with PEI (with M.W. of 75,000), was 121.28 ± 13.15 mg/g, which was much higher than those of ion exchange resins, TP214, Amberjet 4200, and M500. The PEI-PSBF could be successfully applied in the flow-through column system, showing 120 beds of breakthrough volume.
KW - Ion exchange resin
KW - Precious metal
KW - Recovery
KW - Ruthenium
KW - Sorbent
KW - Sorption
UR - http://www.scopus.com/inward/record.url?scp=84961876955&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2016.03.075
DO - 10.1016/j.jhazmat.2016.03.075
M3 - Article
C2 - 27045623
AN - SCOPUS:84961876955
SN - 0304-3894
VL - 313
SP - 29
EP - 36
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -