title: Multiple heavy metal removal using an entomopathogenic fungi Beauveria bassiana.
abstract: Towards the development of a potential remediation technology for multiple heavy metals [Zn(II), Cu(II), Cd(II), Cr(VI) and Ni(II)] from contaminated water, present study examined the growth kinetics and heavy metal removal ability of Beauveria bassiana in individual and multi metals. The specific growth rate of B. bassiana varied from 0.025h(-1) to 0.039h(-1) in presence of individual/multi heavy metals. FTIR analysis indicated the involvement of different surface functional groups in biosorption of different metals, while cellular changes in fungus was reflected by various microscopic (SEM, AFM and TEM) analysis. TEM studies proved removal of heavy metals via sorption and accumulation processes, whereas AFM studies revealed increase in cell surface roughness in fungal cells exposed to heavy metals. Present study delivers first report on the mechanism of bioremediation of heavy metals when present individually as well as multi metal mixture by entomopathogenic fungi.
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Deepak
authors.initials: D
authors.lastname: Gola
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Priyadarshini
authors.initials: P
authors.lastname: Dey
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Arghya
authors.initials: A
authors.lastname: Bhattacharya
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Abhishek
authors.initials: A
authors.lastname: Mishra
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India. Electronic address: anushreemalik@yahoo.com.
authors.forename: Anushree
authors.initials: A
authors.lastname: Malik
authors.affiliation: Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Maneesh
authors.initials: M
authors.lastname: Namburath
authors.affiliation: Department of Biochemical Engineering & Biotechnology, Indian Institute of Technology, Hauz Khas, Delhi, India.
authors.forename: Shaikh Ziauddin
authors.initials: SZ
authors.lastname: Ahammad
mesh_terms: D000327:Adsorption; D052982:Beauveria / Q000378:metabolism*; D001673:Biodegradation, Environmental; D018533:Biomass; D019149:Bioreactors; D005947:Glucose / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008670:Metals / Q000737:chemistry; D019216:Metals, Heavy / Q000032:analysis*; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013696:Temperature; D062065:Wastewater; D014871:Water Microbiology; D018508:Water Purification / Q000379:methods
chemical_list: D005947:Glucose; D008670:Metals; D019216:Metals, Heavy; D062065:Wastewater
keywords: Entomopathogenic fungi; FTIR; Multi metal; SEM-EDX; TEM