TY - JOUR
T1 - Biosorption of cadmium by a metal-resistant filamentous fungus isolated from chicken manure compost
AU - Xu, Xingjian
AU - Xia, Lu
AU - Huang, Qiaoyun
AU - Gu, Ji Dong
AU - Chen, Wenli
N1 - Funding Information:
The authors are greatly indebted to Li Ming, Pan Dan, Zhang Rong and Zhu Wei for their technical assistance. This work was supported by the National Natural Science of Foundation of China (40825002) and the National High Technology Research and Development Program of China (‘863’ Program, 2012AA100602).
PY - 2012
Y1 - 2012
N2 - A fungus, XJ-1, isolated from chicken manure compost was phylogenetically related to Penicillium chrysogenum. The minimum inhibitory concentrations of the fungus for Cd2+, Cu2+, Cr3+, Cr6+, Co2+ and Zn2+ were 300, 85, 55, 8, 25 and 70mM on plates and 200, 65, 30, 2, 30 and 48mM in liquid media, respectively. Biosorption of Cd2+ by XJ-1 was investigated as a function of initial pH, contact time, biomass loading and Cd2+ concentration. According to the Langmuir isotherm, the maximum adsorption of Cd2+ was 100.41 mg g-1 dry biomass. Analyses using FTIR, SEM and XPS showed that the functional groups-OH and-C=O on the XJ-1 cell wall are the dominant binding sites for Cd2+. The results indicate that XJ-1 biomass is an efficient biosorbent for Cd2+ and has great potential for the in situ remediation of environments contaminated with heavy metals.
AB - A fungus, XJ-1, isolated from chicken manure compost was phylogenetically related to Penicillium chrysogenum. The minimum inhibitory concentrations of the fungus for Cd2+, Cu2+, Cr3+, Cr6+, Co2+ and Zn2+ were 300, 85, 55, 8, 25 and 70mM on plates and 200, 65, 30, 2, 30 and 48mM in liquid media, respectively. Biosorption of Cd2+ by XJ-1 was investigated as a function of initial pH, contact time, biomass loading and Cd2+ concentration. According to the Langmuir isotherm, the maximum adsorption of Cd2+ was 100.41 mg g-1 dry biomass. Analyses using FTIR, SEM and XPS showed that the functional groups-OH and-C=O on the XJ-1 cell wall are the dominant binding sites for Cd2+. The results indicate that XJ-1 biomass is an efficient biosorbent for Cd2+ and has great potential for the in situ remediation of environments contaminated with heavy metals.
KW - Biosorption
KW - Cadmium
KW - FT-IR
KW - Penicillium chrysogenum
KW - SEM-EDX
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=84871942505&partnerID=8YFLogxK
U2 - 10.1080/09593330.2011.641591
DO - 10.1080/09593330.2011.641591
M3 - 文章
C2 - 22988626
AN - SCOPUS:84871942505
SN - 0959-3330
VL - 33
SP - 1661
EP - 1670
JO - Environmental Technology (United Kingdom)
JF - Environmental Technology (United Kingdom)
IS - 14
ER -